LABSAFETY-L Archive 9808 JAugust 1998

LABSAFETY-L Archive 9808 August 1998

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=========================================================================
Date: Mon, 3 Aug 1998 08:23:37 +1200
From: John Downey <John.Downey@WAITAKERE.GOVT.NZ>
Subject: Re: Internet Master's Program
MIME-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
Also try contacting University of Central Queensland, Rockhampton, in
Australia. They go right through to Doctorate level in all the major
science areas. I did my Bachelor's degree through them, graduating in 1993,
and seriously considered Masters, but flagged it in the end. UCQ is a very
practical-oriented university, and a great bunch to work with. Certainly
while I was there, a prerequisite for all staff was that they must have done
at least part of a degree by distance education.
I am not sure if they have the courses on internet yet, but if not, I am
sure they would accept email - it's nearly the same, isn't it.
Regards
John Downey
-----Original Message-----
From: Nadine Grady, CIH [SMTP:ngrady@WHITWORTH.EDU]
Sent: Friday, 31 July 1998 04:01
To: LABSAFETY-L@SIU.EDU
Subject: Re: Internet Master's Program
>I'm curious if anyone out there knows whether or not there's an
internet
>master's program in analytical chemistry. The question is for a
friend of
>mine who lives and works in a very remote part of Nevada and is not
able to
>attend a traditional program.
I don't know about Internet-based courses, but on page 52 of the
current
(7/20/98) issue of Chemical & Engineering News there's an article
about
Lehigh University's new distance learning program for master's
degrees in
polymer science and engineering. Details are in the article; or
contact
Peg Kercsmar at (610)758-5794 (Email: mak5@lehigh.edu). They're in
Bethlehem, PA (Eastern time).
Nadine B. Grady, MS, RS, CIH
Chemical Hygiene Officer
Whitworth College
300 W. Hawthorne Rd.
Spokane, WA 99251-3903
phone (509) 777-4510
fax (509) 777-3221
ngrady@whitworth.edu
=========================================================================
Date: Mon, 3 Aug 1998 07:46:10 EDT
From: Martin Besant <MBesant@AOL.COM>
Subject: Re: LABSAFETY-L Digest - 30 Jul 1998 to 31 Jul 1998
Mime-Version: 1.0
Content-type: text/plain; charset=US-ASCII
Content-transfer-encoding: 7bit
There's seems to something of an oxymoronic nature to send an e-mail
concerning the vulnerability of e-mail and to include it as a download, the
most common way of spreading a virus. If I hadn't seen on CNN that Mac users
are immune to this form of transmission, I would have been very wary of
opening this post
marty Besant
West Seneca East Sr HS
A suburb of Buffalo NY
Someday I'll think of one of those really witty closings
=========================================================================
Date: Mon, 3 Aug 1998 13:39:32 -0400
From: Fran Martin <fmartin@CCSINC.COM>
Subject: Updated 1998 CFRs on CD-ROM
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
U.S. Code of Federal Regulations Titles 1 - 24 have been completely updated
to 1998 U.S. GPO revision levels and are available on CD-ROM, along with
Titles 25 - 50 at 1997 revision levels.
Major updated Titles include:
Title 7 Agriculture
Title 10 Energy
Title 12 Banks and Banking
Title 14 Aeronautics and Space, and
Title 21 Food and Drugs
See http://www.env-sol.com/solutions/CFR.HTML for further details.
Fran Martin
FM Research & Consulting
=========================================================================
Date: Tue, 4 Aug 1998 10:28:47 -0600
From: "Helen B. Gerhard" <hbgerhard@MEDLOGIC.COM>
Subject: NFPA Style Rating for 2,4-DinitroPhenyl Hydrazine
MIME-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
Hi All:
2,4-DinitroPhenyl Hydrazine has not been rated by the NFPA. However, in
determining the correct NFPA signage for the lab in which the material
resides, I'm needing to give it some Health/Flammability/Reactivity ratings.
Health I am figuring a 1 as the MSDS information does not indicate major
health difficulties.
Flammability is the most specific so I have given it a 2 (Flash points
between 100 Degree F and 200 Degree F)
The problem I am having is with Reactivity. My QA Chemist tells me the
material is extremely explosive...he said that a building was blown up with
1 gram of the material. But when I go to the MSDS, I am told that the
material is stable at room temperature and pressure. Also, the MSDS does
not show any major explosive hazards. My QA chemist thinks we should rate
the material as a 4 ("Materials that are readily able to detonate, or are of
explosive decomposition or reactive at normal temperatures"). Based on the
MSDS, I believe it is a 1 (Normally stable but can become unstable at
elevated temperatures, pressures, or reactive with water")
What say you guys?
Thanks!
Helen
=========================================================================
Date: Tue, 4 Aug 1998 13:03:55 -0400
From: Dan Hurley <dhurley@WFUBMC.EDU>
Subject: Re: NFPA Style Rating for 2,4-DinitroPhenyl Hydrazine
In-Reply-To: <A01B9B2609E4D111BC9800C0F03095FA0AA937@MLGC-COS-NT01>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
I would check the information on the MSDS against a standard reference such
as SAX and others. MSDS's do not always give accurate or correct
information. SAX should give you some reliable data on which to base your
assessment.
At 10:28 AM 8/4/98 -0600, you wrote:
>Hi All:
>2,4-DinitroPhenyl Hydrazine has not been rated by the NFPA. However, in
>determining the correct NFPA signage for the lab in which the material
>resides, I'm needing to give it some Health/Flammability/Reactivity ratings.
>Health I am figuring a 1 as the MSDS information does not indicate major
>health difficulties.
>Flammability is the most specific so I have given it a 2 (Flash points
>between 100 Degree F and 200 Degree F)
>The problem I am having is with Reactivity. My QA Chemist tells me the
>material is extremely explosive...he said that a building was blown up with
>1 gram of the material. But when I go to the MSDS, I am told that the
>material is stable at room temperature and pressure. Also, the MSDS does
>not show any major explosive hazards. My QA chemist thinks we should rate
>the material as a 4 ("Materials that are readily able to detonate, or are of
>explosive decomposition or reactive at normal temperatures"). Based on the
>MSDS, I believe it is a 1 (Normally stable but can become unstable at
>elevated temperatures, pressures, or reactive with water")
>What say you guys?
>Thanks!
>Helen
>
Daniel J. Hurley, CIH
Sr. Industrial Hygienist
Wake Forest University School of Medicine
910-777-3078
=========================================================================
Date: Tue, 4 Aug 1998 13:27:55 -0400
From: Matthew Navea <mnavea@COLORCON.COM>
Subject: Re: NFPA Style Rating for 2,4-DinitroPhenyl Hydrazine
Mime-Version: 1.0
Content-type: text/plain; charset=us-ascii
We have 2,4 Dinitro Phenyl Hydrazine NFPA rated as 2,1,3. (May ignite or
explode if exposed to shock, friction, heating. Flammable Solid.
Explosive if dry. Dust/air mixtures may ignite or explode.)
If you would like a copy of an MSDS let me know.
Matt Navea
Safety Coordinator
COLORCON
mnavea@colorcon.com
____________________________________________________________________
Hi All:
2,4-DinitroPhenyl Hydrazine has not been rated by the NFPA. However, in
determining the correct NFPA signage for the lab in which the material
resides, I'm needing to give it some Health/Flammability/Reactivity
ratings.
Health I am figuring a 1 as the MSDS information does not indicate major
health difficulties.
Flammability is the most specific so I have given it a 2 (Flash points
between 100 Degree F and 200 Degree F)
The problem I am having is with Reactivity. My QA Chemist tells me the
material is extremely explosive...he said that a building was blown up with
1 gram of the material. But when I go to the MSDS, I am told that the
material is stable at room temperature and pressure. Also, the MSDS does
not show any major explosive hazards. My QA chemist thinks we should rate
the material as a 4 ("Materials that are readily able to detonate, or are
of
explosive decomposition or reactive at normal temperatures"). Based on the
MSDS, I believe it is a 1 (Normally stable but can become unstable at
elevated temperatures, pressures, or reactive with water")
What say you guys?
Thanks!
Helen
=========================================================================
Date: Tue, 4 Aug 1998 10:35:33 -0700
From: "Fleming, Douglas" <Douglas.Fleming@ALLIEDSIGNAL.COM>
Subject: Re: NFPA Style Rating for 2,4-DinitroPhenyl Hydrazine
The following information was retrieved from
http://chemfinder.camsoft.com/ .
This is an EXCELLENT source of chemical information.
p.s. note the information on reactivity/explosive characteristics in
this MSDS!
check it out!
------------------------------------------------------------------------
------
MSDS for 2,4-DINITROPHENYLHYDRAZINE Page 1
------------------------------------------------------------------------
------
------------------------------------------------------------------------
------
1 - PRODUCT IDENTIFICATION
------------------------------------------------------------------------
------
PRODUCT NAME: 2,4-DINITROPHENYLHYDRAZINE
FORMULA: (NO2)2C6H3NHNH2
FORMULA WT: 198.14
CAS NO.: 00119-26-6
NIOSH/RTECS NO.: MV3325000
PRODUCT CODES: K408
EFFECTIVE: 03/05/87
REVISION #02
PRECAUTIONARY LABELLING
BAKER SAF-T-DATA(TM) SYSTEM
HEALTH - 1 SLIGHT
FLAMMABILITY - 1 SLIGHT
REACTIVITY - 2 MODERATE
CONTACT - 2 MODERATE
HAZARD RATINGS ARE 0 TO 4 (0 = NO HAZARD; 4 = EXTREME HAZARD).
LABORATORY PROTECTIVE EQUIPMENT
SAFETY GLASSES; LAB COAT
PRECAUTIONARY LABEL STATEMENTS
WARNING
CAUSES IRRITATION
EXPLOSVE WHEN DRY
MAY BE HARMFUL IF SWALLOWED
KEEP AWAY FROM HEAT, SPARKS, FLAME. DO NOT GET IN EYES, ON SKIN, ON
CLOTHING.
DO NOT BREATHE DUST. KEEP IN TIGHTLY CLOSED CONTAINER. USE WITH
ADEQUATE
VENTILATION. WASH THOROUGHLY AFTER HANDLING. THIS MATERIAL CONTAINS AT
LEAST 10% WATER. IF WATER EVAPORATES BELOW 10%,
2,4-DINITROPHENYLHYDRAZINE
BECOMES AN EXPLOSIVE. IN CASE OF FIRE, SOAK WITH WATER. IN CASE OF
SPILL, SWEEP UP AND CAREFULLY REMOVE. FLUSH SPILL AREA WITH WATER.
SAF-T-DATA(TM) STORAGE COLOR CODE: ORANGE (GENERAL STORAGE)
------------------------------------------------------------------------
------
2 - HAZARDOUS COMPONENTS
------------------------------------------------------------------------
------
COMPONENT % CAS
NO.
2,4-DINITROPHENYLHYDRAZINE 85-90
119-26-6
WATER 10-15
7732-18-5
------------------------------------------------------------------------
------
3 - PHYSICAL DATA
------------------------------------------------------------------------
------
BOILING POINT: N/A VAPOR PRESSURE(MM HG): N/A
------------------------------------------------------------------------
------
MSDS for 2,4-DINITROPHENYLHYDRAZINE Page 2
------------------------------------------------------------------------
------
MELTING POINT: 194 C ( 381 F) VAPOR DENSITY(AIR=1): N/A
SPECIFIC GRAVITY: N/A EVAPORATION RATE: N/A
(H2O=1) (BUTYL ACETATE=1)
SOLUBILITY(H2O): SLIGHT (0.1 TO 1 %) % VOLATILES BY
VOLUME: 0
APPEARANCE & ODOR: RED, CRYSTALLINE POWDER
------------------------------------------------------------------------
------
4 - FIRE AND EXPLOSION HAZARD DATA
------------------------------------------------------------------------
------
FLASH POINT (CLOSED CUP 210 C ( 410 F)
FLAMMABLE LIMITS: UPPER - N/A % LOWER - N/A %
FIRE EXTINGUISHING MEDIA
USE WATER SPRAY.
SPECIAL FIRE-FIGHTING PROCEDURES
FIREFIGHTERS SHOULD WEAR PROPER PROTECTIVE EQUIPMENT AND
SELF-CONTAINED
BREATHING APPARATUS WITH FULL FACEPIECE OPERATED IN POSITIVE PRESSURE
MODE.
MOVE CONTAINERS FROM FIRE AREA IF IT CAN BE DONE WITHOUT RISK. USE
WATER
TO KEEP FIRE-EXPOSED CONTAINERS COOL.
FLOOD WITH WATER, DO NOT SPLATTER OR SPLASH THIS MATERIAL.
UNUSUAL FIRE & EXPLOSION HAZARDS
CAN REACT VIOLENTLY WITH SHOCK, FRICTION OR HEAT.
TOXIC GASES PRODUCED
NITROGEN OXIDES, CARBON MONOXIDE, CARBON DIOXIDE
------------------------------------------------------------------------
------
5 - HEALTH HAZARD DATA
------------------------------------------------------------------------
------
TOXICITY: LD50 (ORAL-RAT)(MG/KG) - 654
CARCINOGENICITY: NTP: NO IARC: NO Z LIST: NO OSHA REG: NO
EFFECTS OF OVEREXPOSURE
CONTACT CAN CAUSE EYE IRRITATION.
PROLONGED CONTACT MAY CAUSE SKIN SENSITIZATION.
INGESTION MAY BE HARMFUL.
CHRONIC EFFECTS OF OVEREXPOSURE MAY DAMAGE BLOOD.
TARGET ORGANS
EYES, BLOOD
MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE
NONE IDENTIFIED
ROUTES OF ENTRY
SKIN CONTACT, EYE CONTACT, INGESTION
------------------------------------------------------------------------
------
MSDS for 2,4-DINITROPHENYLHYDRAZINE Page 3
------------------------------------------------------------------------
------
EMERGENCY AND FIRST AID PROCEDURES
CALL A PHYSICIAN.
IF SWALLOWED, IF CONSCIOUS, IMMEDIATELY INDUCE VOMITING.
IF INHALED, REMOVE TO FRESH AIR. IF NOT BREATHING, GIVE ARTIFICIAL
RESPIRATION. IF BREATHING IS DIFFICULT, GIVE OXYGEN.
IN CASE OF CONTACT, IMMEDIATELY FLUSH EYES WITH PLENTY OF WATER FOR AT
LEAST 15 MINUTES. FLUSH SKIN WITH WATER.
------------------------------------------------------------------------
------
6 - REACTIVITY DATA
------------------------------------------------------------------------
------
STABILITY: UNSTABLE HAZARDOUS POLYMERIZATION: WILL NOT
OCCUR
CONDITIONS TO AVOID: HEAT, FLAME, OTHER SOURCES OF IGNITION, SHOCK
INCOMPATIBLES: STRONG OXIDIZING AGENTS
DECOMPOSITION PRODUCTS: OXIDES OF NITROGEN, CARBON MONOXIDE, CARBON
DIOXIDE
------------------------------------------------------------------------
------
7 - SPILL AND DISPOSAL PROCEDURES
------------------------------------------------------------------------
------
STEPS TO BE TAKEN IN THE EVENT OF A SPILL OR DISCHARGE
WEAR SUITABLE PROTECTIVE CLOTHING. SHUT OFF IGNITION SOURCES; NO
FLARES,
SMOKING, OR FLAMES IN AREA.
MOISTEN MATERIAL WITH WATER AND PLACE IT INTO LOOSELY-COVERED
PLASTIC OR FIBERBOARD CONTAINERS FOR LATER DISPOSAL.
DISPOSAL PROCEDURE
DISPOSE IN ACCORDANCE WITH ALL APPLICABLE FEDERAL, STATE, AND LOCAL
ENVIRONMENTAL REGULATIONS.
EPA HAZARDOUS WASTE NUMBER: D001, D003 (IGNITABLE, REACTIVE
WASTE)
------------------------------------------------------------------------
------
8 - PROTECTIVE EQUIPMENT
------------------------------------------------------------------------
------
VENTILATION: USE ADEQUATE GENERAL OR LOCAL EXHAUST
VENTILATION
TO KEEP FUME OR DUST LEVELS AS LOW AS POSSIBLE.
RESPIRATORY PROTECTION: NONE REQUIRED WHERE ADEQUATE VENTILATION
CONDITIONS EXIST. IF AIRBORNE CONCENTRATION IS
HIGH, USE AN APPROPRIATE RESPIRATOR OR DUST
MASK.
EYE/SKIN PROTECTION: SAFETY GLASSES WITH SIDESHIELDS, RUBBER GLOVES
ARE
RECOMMENDED.
------------------------------------------------------------------------
------
9 - STORAGE AND HANDLING PRECAUTIONS
------------------------------------------------------------------------
------
SAF-T-DATA(TM) STORAGE COLOR CODE: ORANGE (GENERAL STORAGE)
------------------------------------------------------------------------
------
MSDS for 2,4-DINITROPHENYLHYDRAZINE Page 4
------------------------------------------------------------------------
------
SPECIAL PRECAUTIONS
KEEP CONTAINER TIGHTLY CLOSED. STORE IN COOL, DRY, WELL-VENTILATED
AREA
AWAY FROM HEAT, SPARKS, OR FLAME.
THIS PRODUCT CONTAINS AT LEAST 10% WATER - IF THE WATER CONTENT
DECREASES
BELOW THIS LEVEL, IT BECOMES AN EXPLOSIVE. AVOID CONDITIONS THAT
COULD
LEAD TO LOSS OF WATER.
------------------------------------------------------------------------
------
10 - TRANSPORTATION DATA AND ADDITIONAL INFORMATION
------------------------------------------------------------------------
------
DOMESTIC (D.O.T.)
PROPER SHIPPING NAME DRUGS, N.O.S. (2,4-DINITROPHENYLHYDRAZINE)
HAZARD CLASS FLAMMABLE SOLID
UN/NA NA1325
LABELS FLAMMABLE SOLID
INTERNATIONAL (I.M.O.)
PROPER SHIPPING NAME SUBSTANCES, EXPLOSIVE, N.O.S.
HAZARD CLASS 1.1
UN/NA UN0357
LABELS EXPLOSIVE
>-----Original Message-----
>From: Helen B. Gerhard [SMTP:hbgerhard@MEDLOGIC.COM]
>Sent: Tuesday, August 04, 1998 9:29 AM
>To: LABSAFETY-L@SIU.EDU
>Subject: NFPA Style Rating for 2,4-DinitroPhenyl Hydrazine
>Hi All:
>2,4-DinitroPhenyl Hydrazine has not been rated by the NFPA. However, in
>determining the correct NFPA signage for the lab in which the material
>resides, I'm needing to give it some Health/Flammability/Reactivity ratings.
>Health I am figuring a 1 as the MSDS information does not indicate major
>health difficulties.
>Flammability is the most specific so I have given it a 2 (Flash points
>between 100 Degree F and 200 Degree F)
>The problem I am having is with Reactivity. My QA Chemist tells me the
>material is extremely explosive...he said that a building was blown up with
>1 gram of the material. But when I go to the MSDS, I am told that the
>material is stable at room temperature and pressure. Also, the MSDS does
>not show any major explosive hazards. My QA chemist thinks we should rate
>the material as a 4 ("Materials that are readily able to detonate, or are of
>explosive decomposition or reactive at normal temperatures"). Based on the
>MSDS, I believe it is a 1 (Normally stable but can become unstable at
>elevated temperatures, pressures, or reactive with water")
>What say you guys?
>Thanks!
>Helen
=========================================================================
Date: Tue, 4 Aug 1998 11:37:16 -0600
From: "Connie S. Pitman" <cpitman@BRAIN.UCCS.EDU>
Subject: Re: NFPA Style Rating for 2,4-DinitroPhenyl Hydrazine
In-Reply-To: <A01B9B2609E4D111BC9800C0F03095FA0AA937@MLGC-COS-NT01>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Helen, I believe the 2,4-Dinitrophenylhydrazine is only explosive if dry.
Most of the time it is shipped from the manufacturer with 30% water in it.
If allowed to dry out, it can become highly explosive. The older the
stock, the more likely that it could become dry and therefore dangerous.
On Tue, 4 Aug 1998, Helen B. Gerhard wrote:
> Hi All:
> 2,4-DinitroPhenyl Hydrazine has not been rated by the NFPA. However, in
> determining the correct NFPA signage for the lab in which the material
> resides, I'm needing to give it some Health/Flammability/Reactivity ratings.
> Health I am figuring a 1 as the MSDS information does not indicate major
> health difficulties.
> Flammability is the most specific so I have given it a 2 (Flash points
> between 100 Degree F and 200 Degree F)
> The problem I am having is with Reactivity. My QA Chemist tells me the
> material is extremely explosive...he said that a building was blown up with
> 1 gram of the material. But when I go to the MSDS, I am told that the
> material is stable at room temperature and pressure. Also, the MSDS does
> not show any major explosive hazards. My QA chemist thinks we should rate
> the material as a 4 ("Materials that are readily able to detonate, or are of
> explosive decomposition or reactive at normal temperatures"). Based on the
> MSDS, I believe it is a 1 (Normally stable but can become unstable at
> elevated temperatures, pressures, or reactive with water")
> What say you guys?
> Thanks!
> Helen
=========================================================================
Date: Tue, 4 Aug 1998 12:42:06 -0500
From: Lenore Koliha <lkoliha@CREIGHTON.EDU>
Subject: Re: NFPA Style Rating for 2,4-DinitroPhenyl Hydrazine
Comments: To: "Helen B. Gerhard" <hbgerhard@MEDLOGIC.COM>
In-Reply-To: <A01B9B2609E4D111BC9800C0F03095FA0AA937@MLGC-COS-NT01>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Mornin....
By our OHS system the rating should be: Health=2, Fire=1, and
Reactivity=3. Skin irritant, eye irritant, may explode if exposed to
shock, friction or heat. Flammable Solid. Explosive if dry.
Hope this helps.
Lenore
On Tue, 4 Aug 1998, Helen B. Gerhard wrote:
> Hi All:
> 2,4-DinitroPhenyl Hydrazine has not been rated by the NFPA. However, in
> determining the correct NFPA signage for the lab in which the material
> resides, I'm needing to give it some Health/Flammability/Reactivity ratings.
> Health I am figuring a 1 as the MSDS information does not indicate major
> health difficulties.
> Flammability is the most specific so I have given it a 2 (Flash points
> between 100 Degree F and 200 Degree F)
> The problem I am having is with Reactivity. My QA Chemist tells me the
> material is extremely explosive...he said that a building was blown up with
> 1 gram of the material. But when I go to the MSDS, I am told that the
> material is stable at room temperature and pressure. Also, the MSDS does
> not show any major explosive hazards. My QA chemist thinks we should rate
> the material as a 4 ("Materials that are readily able to detonate, or are of
> explosive decomposition or reactive at normal temperatures"). Based on the
> MSDS, I believe it is a 1 (Normally stable but can become unstable at
> elevated temperatures, pressures, or reactive with water")
> What say you guys?
> Thanks!
> Helen
*****************************************************************
* *
* Lenore Koliha e-mail: lkoliha@creighton.edu *
* Chemical Specialist ph#: (402)546-6404 *
* Dept. EH&S fax: (402)546-6403 *
* Creighton U. *
* Jahn Bldg., Rm-110 *
* 2204 Burt St. *
* Omaha, NE 68178 *
*****************************************************************
The true measure of a man is not by the life he leads...
but by the memory he leaves behind.
=========================================================================
Date: Tue, 4 Aug 1998 12:06:44 -0600
From: "Helen B. Gerhard" <hbgerhard@MEDLOGIC.COM>
Subject: Re: NFPA Style Rating for 2,4-DinitroPhenyl Hydrazine
MIME-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
Connie:
We do watch the material closely to make sure it doesn't dry out. Proper
storage is absolutely critical for any material. However, for the NFPA
rating, wouldn't the rating be based on materials with proper storage?
Thanks!
Helen
-----Original Message-----
From: Connie S. Pitman [SMTP:cpitman@BRAIN.UCCS.EDU]
Sent: Tuesday, August 04, 1998 11:37 AM
To: LABSAFETY-L@SIU.EDU
Subject: Re: NFPA Style Rating for 2,4-DinitroPhenyl
Hydrazine
Helen, I believe the 2,4-Dinitrophenylhydrazine is only explosive if
dry.
Most of the time it is shipped from the manufacturer with 30% water
in it.
If allowed to dry out, it can become highly explosive. The older the
stock, the more likely that it could become dry and therefore
dangerous.
On Tue, 4 Aug 1998, Helen B. Gerhard wrote:
> Hi All:
>
> 2,4-DinitroPhenyl Hydrazine has not been rated by the NFPA.
However, in
> determining the correct NFPA signage for the lab in which the
material
> resides, I'm needing to give it some
Health/Flammability/Reactivity ratings.
>
> Health I am figuring a 1 as the MSDS information does not indicate
major
> health difficulties.
> Flammability is the most specific so I have given it a 2 (Flash
points
> between 100 Degree F and 200 Degree F)
>
> The problem I am having is with Reactivity. My QA Chemist tells
me the
> material is extremely explosive...he said that a building was
blown up with
> 1 gram of the material. But when I go to the MSDS, I am told that
the
> material is stable at room temperature and pressure. Also, the
MSDS does
> not show any major explosive hazards. My QA chemist thinks we
should rate
> the material as a 4 ("Materials that are readily able to detonate,
or are of
> explosive decomposition or reactive at normal temperatures").
Based on the
> MSDS, I believe it is a 1 (Normally stable but can become unstable
at
> elevated temperatures, pressures, or reactive with water")
>
> What say you guys?
>
> Thanks!
>
> Helen
>
=========================================================================
Date: Tue, 4 Aug 1998 17:00:31 -0500
From: Jeff Rubin <jrubin@MAIL.UTEXAS.EDU>
Subject: Re: NFPA Style Rating for 2,4-DinitroPhenyl Hydrazine
In-Reply-To: <A01B9B2609E4D111BC9800C0F03095FA0AA937@MLGC-COS-NT01>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
A quick reminder to those using NFPA 704 ratings: the hazard ratings
assigned do NOT refer to materials sitting in a proper container under
ordinary conditions. Ratings indicate short-term, acute-exposure hazards
"under conditions of fire, spill, or similar emergencies."
I don't know if this also applies to the similar rating system used by
chemical manufacturers.
JNR
Jeff Rubin, Asst. Dean for EHS
College of Natural Sciences G2500
W.C. Hogg Building
University of Texas at Austin
Austin, TX 78712-1199
(512) 471-6176 (O)
(512) 471-4998 (F)
jrubin@mail.utexas.edu
"The opinions of Dr. Rubin do not necessarily represent those of the
Canadian government, with whom he has no affiliation."
=========================================================================
Date: Wed, 5 Aug 1998 12:50:43 -0600
Reply-To: sharpdc@mail.auburn.edu
Sender: LABSAFETY-L Discussion List <LABSAFETY-L@SIU.EDU>
From: D Sharpe <sharpdc@MAIL.AUBURN.EDU>
Organization: Auburn University
Subject: Re: NFPA Style Rating for 2,4-DinitroPhenyl Hydrazine
MIME-Version: 1.0
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NFPA 704 will also help give guidance on classification of chemicals and
is very specific about how you rate them (i.e. 1-4)
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org: Auburn University
adr;dom: ;;313 Leach Science Building;Auburn;Al;36849;
email;internet: sharpdc@mail.auburn.edu
title: University Safety Officer
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--------------EDFE5F536272EE6AB84EF4BB--
=========================================================================
Date: Thu, 6 Aug 1998 06:16:37 EDT
From: Labsafe@AOL.COM
Subject: It's Never Happened Before
Mime-Version: 1.0
Content-type: text/plain; charset=US-ASCII
Content-transfer-encoding: 7bit
Hi NACHO Members....
I'm wondering how many of you have had this experience.
After a close call or accident, one of the folks involved says
"That's never happened before!"
Lee Smith was Vice President for Business Affairs at UT Austin.
He told me about a conversation he had with the Austin Fire Chief
(who as you all know got to know UT Austin very well!).
The Chief said that every year for the past dozen years he has gone
to home fires where the home had burned to the ground. On each
such occasion, the homeowner has said: "This has never happened
before!"
Well, before it does happen, please tell a colleague about NACHO
and invide them to join our organization. Please put NACHO on
the agenda for your next staff meeting. If you would like me to
send you a document to use for a handout, I can do that too.
If you have an intranet, please share info about NACHO with them.
If you belong to other discussion lists, please spread the word.
Thanks... jim
*****************************************************
James A. Kaufman, President
The Laboratory Safety Workshop
192 Worcester Road, Natick, MA 01760
508-647-1900 Fax: 508-647-0062 LabSafe@aol.com
Safety in Science Education
The Laboratory Safety Workshop is a national non-profit educational
organization dedicated to making health and safety an integral and
important part of science education. Free copies of our Laboratory
Safety Guidelines, Publications List, AV-Lending Library List, seminar
schedule, and membership information are available on request.
The LABSAFETY-L discussion list is a public service of LSI.
Visit our growing web site at www:LABSAFETY.ORG
**********************************************************************
=========================================================================
Date: Thu, 6 Aug 1998 09:42:56 EDT
From: Marshall Huckaby <RVNLRRP@AOL.COM>
Subject: Re: It's Never Happened Before
Mime-Version: 1.0
Content-type: text/plain; charset=US-ASCII
Content-transfer-encoding: 7bit
I need a little help. We are installing a pneumatic tube in our Medical Center
to send "stuff" from Lab to ER, etc. I am trying to get a policy written, but
I sure do not want to miss anything. If anyone has a policy they wouldn't
mind shareing, please e-mail me and I'll send my Fax number. Maybe I can
return the favor
Thanks.
=========================================================================
Date: Thu, 6 Aug 1998 09:32:11 -0500
From: Jeff Rubin <jrubin@MAIL.UTEXAS.EDU>
Subject: Re: It's Never Happened Before
In-Reply-To: <94f2c200.35c9b2e1@aol.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
The only specifics I've seen for tubing biohazards in hospitals requires
secondary containment, as well as padding if the primary container is
glass. Have you checked with other hospitals in your area?
JNR
>I need a little help. We are installing a pneumatic tube in our Medical Center
>to send "stuff" from Lab to ER, etc. I am trying to get a policy written, but
>I sure do not want to miss anything. If anyone has a policy they wouldn't
>mind shareing, please e-mail me and I'll send my Fax number. Maybe I can
>return the favor
>Thanks.
Jeff Rubin, Asst. Dean for EHS
College of Natural Sciences G2500
W.C. Hogg Building
University of Texas at Austin
Austin, TX 78712-1199
(512) 471-6176 (O)
(512) 471-4998 (F)
jrubin@mail.utexas.edu
"The opinions of Dr. Rubin do not necessarily represent those of the
Canadian government, with whom he has no affiliation."
=========================================================================
Date: Thu, 6 Aug 1998 10:37:07 -0600
From: "Helen B. Gerhard" <hbgerhard@MEDLOGIC.COM>
Subject: Re: It's Never Happened Before
MIME-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
Jim:
Please send the information on how to join typed into an email message.
That way we can forward the information on to our colleagues without having
to look up the "Sign Up" information in our notes.
Thanks!
Helen
-----Original Message-----
From: Labsafe@AOL.COM [SMTP:Labsafe@AOL.COM]
Sent: Thursday, August 06, 1998 4:17 AM
To: LABSAFETY-L@SIU.EDU
Subject: It's Never Happened Before
Hi NACHO Members....
I'm wondering how many of you have had this experience.
After a close call or accident, one of the folks involved says
"That's never happened before!"
Lee Smith was Vice President for Business Affairs at UT Austin.
He told me about a conversation he had with the Austin Fire Chief
(who as you all know got to know UT Austin very well!).
The Chief said that every year for the past dozen years he has gone
to home fires where the home had burned to the ground. On each
such occasion, the homeowner has said: "This has never happened
before!"
Well, before it does happen, please tell a colleague about NACHO
and invide them to join our organization. Please put NACHO on
the agenda for your next staff meeting. If you would like me to
send you a document to use for a handout, I can do that too.
If you have an intranet, please share info about NACHO with them.
If you belong to other discussion lists, please spread the word.
Thanks... jim
*****************************************************
James A. Kaufman, President
The Laboratory Safety Workshop
192 Worcester Road, Natick, MA 01760
508-647-1900 Fax: 508-647-0062 LabSafe@aol.com
Safety in Science Education
The Laboratory Safety Workshop is a national non-profit educational
organization dedicated to making health and safety an integral and
important part of science education. Free copies of our Laboratory
Safety Guidelines, Publications List, AV-Lending Library List,
seminar
schedule, and membership information are available on request.
The LABSAFETY-L discussion list is a public service of LSI.
Visit our growing web site at www:LABSAFETY.ORG
**********************************************************************
=========================================================================
Date: Thu, 6 Aug 1998 15:35:46 -0500
Reply-To: i_ahern@lr.net
Sender: LABSAFETY-L Discussion List <LABSAFETY-L@SIU.EDU>
From: "Ina J. Ahern" <i_ahern@LR.NET>
Subject: A 2nd Acid Spill in NH
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Seems we are having a few of these this summer!
According to The Citizen, a local paper out of Laconia, NH; "A chemical
spill early Tuesday afternoon at the Lakes Region Factory Stores outlet
center forced the evacuation of about half of the complex on busy Route
3. Four people were taken to area hospitals to be checked out for
respiratory problems, authorities reported."
The chemical was acetic acid which was spilled inside a van which was
making a delivery to Hair Excitement. The driver slammed on her brakes
and the container inside the van spilled according to the Fire Chief.
The chemical was supposed to be delivered to Polyclad Laminates in
Franklin. Acetic acid is a chemical used in photographic darkrooms as a
stop bath.
About 100 people were evacuated and the stores closed as a safety
precaution. Fire trucks were used to barricade entrances and the HazMat
Team from Concord was called it to contain the chemical and remove it
from the van. One of the major concerns was that there were other
chemicals inside the van. An estimated two to three gallons spilled. No
information was provided about the concentration of the acid.
Although I'm sure they were well away from the main area of the spill,
the photograph on the front page showed a man, identified either as a
fireman or member of the hazmat team in knee high rubber boots and
shorts! He was wheeling an empty dolly. In addition, his eyewear
appears to be sunglasses.
Ina Ahern
=========================================================================
Date: Thu, 6 Aug 1998 16:31:08 -0500
From: Debbie Decker <dmdecker@UCDAVIS.EDU>
Subject: Re: internet master's program
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Greetings:
Thanks to all of you who responded with information and advice about
options for distance learning and obtaining a master's degree outside of
the traditional program. My friend for whom I asked the question was quite
thrilled with the information and input.
If anyone happens to come across anything that might apply, I'd be grateful
if you could forward it on.
Again, many thanks!
Cheers,
Deb.
Debbie M. Decker, Health and Safety Specialist
UCDavis - Environmental Health & Safety
(530)754-7964
=========================================================================
Date: Thu, 6 Aug 1998 22:10:17 -0500
From: "Dr. Linda A. Swihart" <swihart@PURDUE.EDU>
Subject: email hoaxes, Badtimes virus
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Maybe this isn't necessary; if not I apologise for wasting bandwidth with
it. I have been reading most of the messages on this BB for about a year,
and if something on this topic escaped me, sorry.
In the past four weeks I have received four "virus alerts" and one "the
Cancer Society will donate 3 cents to research for every business card sent
to Timmy...." from professional contacts. (None of these messages were
from members of this BB as far as I know, but all of which were addressed
to 40 - 100 other recipients besides myself.)
I searched briefly to determine for sure that the message contents were
hokey, and five time sent a message to a reputable colleague explaining how
demented assholes ('scuse me) start this crap, how EASY it is to establish
that a hoax is a hoax, and how mostly the most decent people get
burned/embarrassed this way at least once before someone clues them in...
so don't be too embarrassed....
How to know if email you get is a hoax? The Department of Energy maintains
a CIAC ("Computer Incident Advisory Capability") web page that is touted as
being "the definitive source for information on computer viruses and
particularly, the many computer email hoaxes, e.g., penpal greetings, good
times virus..." (touted by Central States Communication Association at a
Ball State U web page). The DOE CIAC page is at
http://ciac.llnl.gov/
However it's clearly not perfect. I can't find any reference on this CIAC
page to the "BUDDYLST.ZIP" alert that constituted the topic of three of my
recently received alerts (some alleged doomslinging screen-saver).
Entering "BUDDYLST.ZIP" into Alta Vista got 109 matches, mostly hoax alerts
(of the first ten, the earliest hoax expose was dated August 1997, so the
hoax had been known as a hoax for at least 11 months as of the date I
received it).
So, in case you didn't already know better, SEARCH before you forward
alerts and chain letters to your biggest address book list. The internet
is not as fragile as some would claim it is, but it's stupid to burden it
with and in general perpetuate this garbage.
Off soapbox.
And now, in case you haven't seen it and might find it entertaining:
[NOTE: This is a joke. Do not forward it to anyone!]
-----
!!!WARNING, VIRUS ALERT!!!
If you receive a message with a subject line of "Badtimes," delete it
immediately WITHOUT reading it. This is the most dangerous virus yet.
It will re-write your hard drive. Not only that, but it will scramble
any disks that are even close to your computer up to 20 feet.
It will recalibrate your refrigerator's coolness setting so all
your ice cream melts and milk curdles.
It will demagnetize the strips on all your credit cards,
reprogram your ATM access code, screw up the tracking on your VCR and use
subspace field harmonics to scratch any CDs you try to play.
It will give your ex-boy/girlfriend your new phone number.
It will program your phone autodial to call only your mother's
number. It is insidious and subtle. It is dangerous and terrifying to
behold.
It will mix antifreeze into your fish tank. It will drink all
your beer.
It will hide your car keys when you are late for work and
interfere with your car radio so that you hear 1940's hits and static while
stuck in traffic.
It will give you nightmares about circus midgets.
It will replace your shampoo with Nair and your Nair with
Rogaine, all while dating your current boy/girlfriend behind your back and
billing their hotel rendezvous to your Visa card.
It will seduce your grandmother. It does not matter if she is
dead, such is the power of "Badtimes", it reaches out beyond the grave
to sully those things we hold most dear.
It will rewrite your back-up files, changing all your active
verbs to passive tense and incorporating undetectable misspellings which
grossly change the interpretation of key sentences.
"Badtimes" will give you Dutch Elm disease. It will leave the toilet seat
up and leave the hairdryer plugged in dangerously close to a full bathtub.
It will wantonly remove the forbidden tags from your mattresses
and pillows, and refill your skim milk with whole.
"Badtimes" is an evil virus conceived by evil people. It is also
a rather interesting shade of mauve. These are just a few signs. Be very,
very afraid.
PLEASE FORWARD THIS MESSAGE TO EVERYONE YOU KNOW!!!
[Repeat: this is a joke. Do not forward it to anyone.]
=========================================================================
Date: Fri, 7 Aug 1998 08:51:22 -0500
From: Jeff Rubin <jrubin@MAIL.UTEXAS.EDU>
Subject: Re: email hoaxes, Badtimes virus
In-Reply-To: <3.0.32.19980806221015.00712f9c@postoffice.purdue.edu>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
The best virus-hoax listing I've seen (yes, it includes BUDDYLST.ZIP) is at
http://www.symantec.com/avcenter/hoax.html
Frequently updated, with "new" hoaxes highlighted, it also lists and
describes real viruses.
JNR
Jeff Rubin, Asst. Dean for EHS
College of Natural Sciences G2500
W.C. Hogg Building
University of Texas at Austin
Austin, TX 78712-1199
(512) 471-6176 (O)
(512) 471-4998 (F)
jrubin@mail.utexas.edu
"The opinions of Dr. Rubin do not necessarily represent those of the
Canadian government, with whom he has no affiliation."
=========================================================================
Date: Fri, 7 Aug 1998 08:53:52 -0600
From: "Helen B. Gerhard" <hbgerhard@MEDLOGIC.COM>
Subject: Re: email hoaxes, Badtimes virus
MIME-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
Thank you for your concern. I appreciate the site to confirm or deny the
rumors. I would like to point out, however, that the current "Long filename
email vulnerability" in Netscape and Microsoft is for real. If you go to
the Netscape homepage, they verify it and are working on a patch to fix it.
I'm sure Microsoft is doing the same.
Thanks!
Helen
-----Original Message-----
From: Dr. Linda A. Swihart [SMTP:swihart@PURDUE.EDU]
Sent: Thursday, August 06, 1998 9:10 PM
To: LABSAFETY-L@SIU.EDU
Subject: email hoaxes, Badtimes virus
Maybe this isn't necessary; if not I apologise for wasting bandwidth
with
it. I have been reading most of the messages on this BB for about a
year,
and if something on this topic escaped me, sorry.
In the past four weeks I have received four "virus alerts" and one
"the
Cancer Society will donate 3 cents to research for every business
card sent
to Timmy...." from professional contacts. (None of these messages
were
from members of this BB as far as I know, but all of which were
addressed
to 40 - 100 other recipients besides myself.)
I searched briefly to determine for sure that the message contents
were
hokey, and five time sent a message to a reputable colleague
explaining how
demented assholes ('scuse me) start this crap, how EASY it is to
establish
that a hoax is a hoax, and how mostly the most decent people get
burned/embarrassed this way at least once before someone clues them
in...
so don't be too embarrassed....
How to know if email you get is a hoax? The Department of Energy
maintains
a CIAC ("Computer Incident Advisory Capability") web page that is
touted as
being "the definitive source for information on computer viruses and
particularly, the many computer email hoaxes, e.g., penpal
greetings, good
times virus..." (touted by Central States Communication Association
at a
Ball State U web page). The DOE CIAC page is at
http://ciac.llnl.gov/
However it's clearly not perfect. I can't find any reference on
this CIAC
page to the "BUDDYLST.ZIP" alert that constituted the topic of three
of my
recently received alerts (some alleged doomslinging screen-saver).
Entering "BUDDYLST.ZIP" into Alta Vista got 109 matches, mostly hoax
alerts
(of the first ten, the earliest hoax expose was dated August 1997,
so the
hoax had been known as a hoax for at least 11 months as of the date
I
received it).
So, in case you didn't already know better, SEARCH before you
forward
alerts and chain letters to your biggest address book list. The
internet
is not as fragile as some would claim it is, but it's stupid to
burden it
with and in general perpetuate this garbage.
Off soapbox.
And now, in case you haven't seen it and might find it entertaining:
[NOTE: This is a joke. Do not forward it to anyone!]
-----
!!!WARNING, VIRUS ALERT!!!
If you receive a message with a subject line of "Badtimes," delete
it
immediately WITHOUT reading it. This is the most dangerous virus
yet.
It will re-write your hard drive. Not only that, but it will
scramble
any disks that are even close to your computer up to 20 feet.
It will recalibrate your refrigerator's coolness setting so all
your ice cream melts and milk curdles.
It will demagnetize the strips on all your credit cards,
reprogram your ATM access code, screw up the tracking on your VCR
and use
subspace field harmonics to scratch any CDs you try to play.
It will give your ex-boy/girlfriend your new phone number.
It will program your phone autodial to call only your mother's
number. It is insidious and subtle. It is dangerous and terrifying
to
behold.
It will mix antifreeze into your fish tank. It will drink all
your beer.
It will hide your car keys when you are late for work and
interfere with your car radio so that you hear 1940's hits and
static while
stuck in traffic.
It will give you nightmares about circus midgets.
It will replace your shampoo with Nair and your Nair with
Rogaine, all while dating your current boy/girlfriend behind your
back and
billing their hotel rendezvous to your Visa card.
It will seduce your grandmother. It does not matter if she is
dead, such is the power of "Badtimes", it reaches out beyond the
grave
to sully those things we hold most dear.
It will rewrite your back-up files, changing all your active
verbs to passive tense and incorporating undetectable misspellings
which
grossly change the interpretation of key sentences.
"Badtimes" will give you Dutch Elm disease. It will leave the toilet
seat
up and leave the hairdryer plugged in dangerously close to a full
bathtub.
It will wantonly remove the forbidden tags from your mattresses
and pillows, and refill your skim milk with whole.
"Badtimes" is an evil virus conceived by evil people. It is also
a rather interesting shade of mauve. These are just a few signs.
Be very,
very afraid.
PLEASE FORWARD THIS MESSAGE TO EVERYONE YOU KNOW!!!
[Repeat: this is a joke. Do not forward it to anyone.]
=========================================================================
Date: Sun, 9 Aug 1998 10:55:24 -0400
Reply-To: daniel@wsii.com
Sender: LABSAFETY-L Discussion List <LABSAFETY-L@SIU.EDU>
From: "Daniel R. Gigante" <daniel@WSII.COM>
Subject: Exotic, Rare Earth Metals and Rare Gases Wanted
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
In addition to accepting large chemical inventories of all kinds, Unison
International is now accepting exotic and rare metals in any quantity, any
age. Examples include:
Iridium Neodymium
Rhodium Europium
Gallium Germanium
Beryllium Columbium
Terbium Cesium
Indium Cerium
We also accept exotic and rare gases:
Krypton
Neon
Xeon
Sulfur Hexafluoride
Please email, fax or call with a description (material name, manufacturer &
quantity) of any metals or gases you have, now and in the future.
Daniel R. Gigante
Unison International
Tel: 401-848-5957
Fax: 401-847-8964
=========================================================================
Date: Mon, 10 Aug 1998 14:21:14 -0300
From: SLYPIG <SLYPIG@PRODIGY.NET>
Subject: Re: LABSAFETY-L Digest - 2 Aug 1998 to 3 Aug 1998
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
For Marty Besant and the oxymoronic nature of antiviral download alerts:
Agreed! To all who read your message about Email vulnerability: Mac users,
don't be so sure of your invulnerability to viral Email downloads. A dear
friend of mine who almost lost his graphics job, recently downloaded a
virus that crippled his whole department's Mac-based system. The files were
large pictures. Nobody's immune.
--John Cunningham
> Date: Mon, 3 Aug 1998 07:46:10 EDT
> From: Martin Besant <MBesant@AOL.COM>
> Subject: Re: LABSAFETY-L Digest - 30 Jul 1998 to 31 Jul 1998
> There's seems to something of an oxymoronic nature to send an e-mail
> concerning the vulnerability of e-mail and to include it as a download,
the
> most common way of spreading a virus. If I hadn't seen on CNN that Mac
users
> are immune to this form of transmission, I would have been very wary of
> opening this post
> marty Besant
> West Seneca East Sr HS
> A suburb of Buffalo NY
> Someday I'll think of one of those really witty closings
> ------------------------------
=========================================================================
Date: Mon, 10 Aug 1998 16:56:52 +0100
From: Anne Skinner <Anne.R.Skinner@WILLIAMS.EDU>
Subject: LD-50
Comments: To: SAFETY@LIST.UVM.EDU
MIME-version: 1.0
Content-type: text/plain; charset=us-ascii
Does anyone know of a useful demonstration/group exercise that would
illustrate the concept of LD50? A colleague suggested shooting half the
students in the class but I think that is a bit extreme. This is for a
non-technical group, so actually killing off a bunch of flies is not an
option either.
Thanks --
Anne Skinner
P.S. Hope the cross-posting doesn't overfill too many mailboxes.
/O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\
Si Si Si Si Si Si Si Si Si Si Si Si Si Si Si
\O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/
Dr. Anne Skinner
Chemistry Department, Williams College
47 Lab Campus Drive
Williamstown, MA 01267
anne.r.skinner@williams.edu
Phone: (413) 597-2285
Fax No: (413) 597-4116
/O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\
Si Si Si Si Si Si Si Si Si Si Si Si Si Si Si
\O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/
=========================================================================
Date: Mon, 10 Aug 1998 17:36:59 -0400
Reply-To: "Dr. Henry" <hboyter@cstone.net>
Sender: LABSAFETY-L Discussion List <LABSAFETY-L@SIU.EDU>
From: "Henry Boyter Jr." <hboyter@CSTONE.NET>
Subject: Re: LD-50
MIME-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
Take a black bag and put various doasages of wrapped candy and wrapped rocks (or equivalent) in it.
Have about two to three times the number of class members. You could use different flavors also,
instead of the rocks (the rock idea comes from Charlie Brown getting rocks on Halloween). Have each
class member (or a subset) pull out one thing each. Note concentration in original bag that it takes to
"kill 50%" with a rock. Make sure you have extra candy for those who get "killed" each time.
Dr. Henry Boyter, Jr. Ph.D. Chemist
The opinions of Dr. Boyter are provided for informational
purposes only and should not be used as advice. No
warranty or expression of professionalism is implied.
***************
-----Original Message-----
From: Anne Skinner <Anne.R.Skinner@WILLIAMS.EDU>
To: LABSAFETY-L@SIU.EDU <LABSAFETY-L@SIU.EDU>
Date: Monday, August 10, 1998 5:06 PM
Subject: LD-50
Does anyone know of a useful demonstration/group exercise that would
illustrate the concept of LD50? A colleague suggested shooting half the
students in the class but I think that is a bit extreme. This is for a
non-technical group, so actually killing off a bunch of flies is not an
option either.
Thanks --
Anne Skinner
P.S. Hope the cross-posting doesn't overfill too many mailboxes.
/O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\
Si Si Si Si Si Si Si Si Si Si Si Si Si Si Si
\O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/
Dr. Anne Skinner
Chemistry Department, Williams College
47 Lab Campus Drive
Williamstown, MA 01267
anne.r.skinner@williams.edu
Phone: (413) 597-2285
Fax No: (413) 597-4116
/O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\
Si Si Si Si Si Si Si Si Si Si Si Si Si Si Si
\O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/
=========================================================================
Date: Mon, 10 Aug 1998 17:42:17 -0400
From: Mary Ann Solstad <msolstad@MEDIAONE.NET>
Subject: Re: LD-50
In-Reply-To: <l03010d09b1f4c831aa50@[137.165.16.132]>
Mime-Version: 1.0
Content-Type: text/enriched; charset="us-ascii"
Dear Anne,
A memorable lesson was given many years ago to a bunch of H S teachers by Jay Young, of DivCHAS, still a lively consultant in Maryland, and a CH&S columnist. It was a memorable lesson and illustrated the important points.
He pointed to the group of about 100.
We are going to discover the LD50 of martinis.
This half (indicated one side of the room); you are the control group; you get nothing but water (groans).
You, (indicating 1st row of other half of the room), get one martini.
Next row gets 2 martinis.
3rd row gets 3 martinis.
At the row in which half of you drop dead, that is the LD50 for martinis. For example if half died from row 4, then the LD50 for martinis is 4 drinks.
You may not like the reference to alcohol, but you won't forget the lesson. And I doubt if the teachers ever forgot. Besides, Jay always has a bit of a twinkle in his eye. Lesson: Don't be too serious in this lesson.
Mary Ann
At 04:56 PM 8/10/98 +0100, you wrote:
>Does anyone know of a useful demonstration/group exercise that would
>illustrate the concept of LD50? A colleague suggested shooting half the
>students in the class but I think that is a bit extreme. This is for a
>non-technical group, so actually killing off a bunch of flies is not an
>option either.
>Thanks --
>Anne Skinner
>P.S. Hope the cross-posting doesn't overfill too many mailboxes.
> /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\
>Si Si Si Si Si Si Si Si Si Si Si Si Si Si Si
> \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/
>Dr. Anne Skinner
>Chemistry Department, Williams College
>47 Lab Campus Drive
>Williamstown, MA 01267
>anne.r.skinner@williams.edu
>Phone: (413) 597-2285
>Fax No: (413) 597-4116
> /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\
>Si Si Si Si Si Si Si Si Si Si Si Si Si Si Si
> \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/
Mary Ann
Mary Ann Solstad
16 Pequot Rd
Marblehead, MA 01945-1202
tel 781-631-4748, FAX 781-631-1832
<paraindent><param>out</param>msolstad@mediaone.net
</paraindent>
=========================================================================
Date: Mon, 10 Aug 1998 16:36:47 -0600
From: Linda Perez <liperez@NMSU.EDU>
Subject: Re: LD-50
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
>Does anyone know of a useful demonstration/group exercise that would
>illustrate the concept of LD50? A colleague suggested shooting half the
>students in the class but I think that is a bit extreme. This is for a
>non-technical group, so actually killing off a bunch of flies is not an
>option either.
>Thanks --
How about a food experiment? Try adding a distinct flavor to something
(e.g. salt to pudding). Start with low dosages, such as a few grains, then
keep adding more and show that the LD50 would be the dose where 50% of the
subjects tasted the salt.
Linda
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
Linda S. Perez NAOSMM member #991 since 1994
Coordinator Ask Me!
New Mexico State University
Biology Department (505)646-3915
Box 30001 MSC 3AF (505)382-6547 pager
Foster Hall Room 130 (505)646-5665 fax
Las Cruces, NM 88003 liperez@nmsu.edu
***** http://pc-biology.nmsu.edu/linda/coordina.htm *****
//////////////////////////////////////////////////////////////////////
=========================================================================
Date: Tue, 11 Aug 1998 11:22:46 -0600
From: Jeffery M Erickson <ERI@INEL.GOV>
Mime-Version: 1.0
Content-type: text/plain; charset=us-ascii
I am looking for a good class addressing the safety aspects and exposure
limits for Nonionizing Radiation (Electromagnetic Radiation, Magnetic
Fields, Infrared Radiation, Ultraviolet Radiation, etc.). Any
recommendations? Please respond to :
Jeff Erickson at:
eri@inel.gov
Thanks.
=========================================================================
Date: Tue, 11 Aug 1998 12:34:50 -0600
From: "Helen B. Gerhard" <hbgerhard@MEDLOGIC.COM>
Subject: Sodium Azide
MIME-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
Hi All:
I have a chemist interested in using Sodium Azide as an anit-bacterial in
laboratory solutions. He plans on purchasing 5 g and using to make 0.005%
solution. He expects that the 5 g bottle may last as long as 6 months, thus
storage is an issue.
I went to the NIH page describing the use of the material. However, I
haven't seen any information on the amounts of the material used. I
understand the material is highly toxic and thus we'll use reasonable
controls (e.g. proper gowning, use of hood, respirators, etc). However, I
am more concerned with the "explosive decomposition" of the material. How
explosive will this 5 gram bottle be?
Also, Aldrich offers the material in 99.99% + pure (with a notation of
HIGHLY TOXIC, EXPLODES WHEN HEATED) and 99% without the accompanying
notation. Does a ~1% difference in the purity make that much difference?
Does anyone reading have more personal experience with the material? Are
there other materials that could be substituted that are less problematic?
Do I really have an issue here for the amount we'll be using (e.g. safety,
storage, use)?
Any information would be appreciated.
Thanks!
Helen
=========================================================================
Date: Tue, 11 Aug 1998 15:08:34 -0400
From: Bob Burns <rburns@BIGFOOT.COM>
Subject: Re: Sodium Azide
MIME-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
Hi Helen,
Here's the entry from the 1998 CD-ROM version of SAX.
Bob
SODIUM AZIDE SODIUM AZIDE [Hawley] [Prager] [Pohanish]
DPIM: SFA000 Hazard Rating: 3
CAS: 26628-22-8
DOT Number: UN 1687
M Formula: N3Na M Weight: 65.02
Properties:
Colorless, hexagonal crystals. Melting point: decomposition, density: 1.846.
Insoluble in ether; soluble in liquid ammonia.
Synonyms:
AZIDE
AZIUM AZIUM
AZOTURE de SODIUM (FRENCH) AZOTURE SODIUM FRENCH
KAZOE KAZOE
NATRIUMAZID (GERMAN) NATRIUMAZID GERMAN
NATRIUMAZIDE (DUTCH) NATRIUMAZIDE DUTCH
NCI-C06462 NCI C06462
NSC-3072 NSC 3072
RCA WASTE NUMBER P105 RCA WASTE NUMBER P105
SODIUM, AZOTURE de (FRENCH) SODIUM AZOTURE FRENCH
SODIUM, AZOTURO di (ITALIAN) SODIUM AZOTURO ITALIAN
U-3886 U 3886
TOXICITY DATA with REFERENCE
Mutation in Microorganisms-Salmonella typhimurium 10 mg/plate Mutation
Research. (Elsevier Science Publications B.V., POB 211, 1000 AE Amsterdam,
Netherlands) V.1- 1964-MUREAV 144,231,85
DNA Inhibition-Human:fibroblast 50 mg/L Studia Biophysica. (Akademie-Verlag
GmbH, Liepziger Str. 3-4, DDR-108 Berlin, Germany) V.1- 1966-STBIBN
78,165,80
Oral-Rat TDLo:2730 mg/kg/78W-C:Equivocal tumorigenic agent JNCI, Journal of
the National Cancer Institute. (U.S. Government Printing Office,
Superintendent of Documents, Washington, DC 20402) V.61- 1978-JJIND8
67,75,81
Oral-Rat TD:5460 mg/kg/78W-C:Equivocal tumorigenic agent JNCI, Journal of
the National Cancer Institute. (U.S. Government Printing Office,
Superintendent of Documents, Washington, DC 20402) V.61- 1978-JJIND8
67,75,81
Oral-Human TDLo:710 mg/kg:Central nervous system effects,KID Journal of
Clinical Pathology. (British Medical Association, Tavistock Sq., London WC1H
9JR, England) V.1- 1947-JCPAAK 28,350,75
Oral-Rat TDLo:2730 mg/kg/78W-C:Equivocal tumorigenic agent JNCI, Journal of
the National Cancer Institute. (U.S. Government Printing Office,
Superintendent of Documents, Washington, DC 20402) V.61- 1978-JJIND8
67,75,81
Oral-Rat LD :5460 mg/kg/78W-C:Equivocal tumorigenic agent JNCI, Journal of
the National Cancer Institute. (U.S. Government Printing Office,
Superintendent of Documents, Washington, DC 20402) V.61- 1978-JJIND8
67,75,81
Oral-Woman LDLo:14 mg/kg Journal of Forensic Sciences. (American Society
for Testing and Materials, 1916 Race St., Philadelphia, PA 19103) V.1-
1956-JFSCAS 35,193,90
Oral-Woman TDLo:3 mg/kg Archiv fuer Toxikologie. (Berlin, Germany) V.15-31,
1954-74. For publisher information, see ARTODNATXKA8 20,279,65
Oral-Human TDLo:710 mg/kg Journal of Clinical Pathology. (British Medical
Association, Tavistock Sq., London WC1H 9JR, England) V.1- 1947-JCPAAK
28,350,75
Oral-Man LDLo:143 mg/kg Journal of Toxicology, Clinical Toxicology. (Marcel
Dekker, POB 11305, Church St. Station, New York, NY 10249) V.19- 1982-JTCTDW
24,339,86
Oral-Rat LD50:27 mg/kg Farm Chemicals Handbook. (Meister Publishing, 37841
Euclid Ave., Willoughy, OH 44094)FMCHA2-,C32,91
Intraperitoneal-Rat LDLo:30 mg/kg Public Health Reports. (U.S. Government
Printing Office, Superintendent of Documents, Washington, DC 20402) V.1-
1878-PHRPA6 58,607,43
Subcutaneous-Rat LDLo:35 mg/kg Public Health Reports. (U.S. Government
Printing Office, Superintendent of Documents, Washington, DC 20402) V.1-
1878-PHRPA6 58,607,43
Oral-Mouse LD50:27 mg/kg Compilation of LD50 Values of New Drugs. (J.R.
MacDougal, Dept. of National Health and Welfare, Food and Drug Divisions, 35
John St., Ottawa, Ontario, Canada)CLDND* 30,98,48
Subcutaneous-Mouse LDLo:17 mg/kg Archiv fuer Toxikologie. (Berlin, Germany)
V.15-31, 1954-74. For publisher information, see ARTODNATXKA8 22,160,66
Intravenous-Mouse LD50:19 mg/kg Compilation of LD50 Values of New Drugs.
(J.R. MacDougal, Dept. of National Health and Welfare, Food and Drug
Divisions, 35 John St., Ottawa, Ontario, Canada)CLDND* 6,160,52
Intravenous-Monkey LDLo:12 mg/kg Brain; Journal of Neurology. (Oxford Univ.
Press, Walton St., Oxford OX2 6DP, England) V.1- 1878-BRAIAK 95,505,72
Skin-Rabbit, adult LD50:20 mg/kg Farm Chemicals Handbook. (Meister
Publishing, 37841 Euclid Ave., Willoughy, OH 44094)FMCHA2-,C32,91
Subcutaneous-Rabbit, adult LDLo:17 mg/kg Archiv fuer Toxikologie. (Berlin,
Germany) V.15-31, 1954-74. For publisher information, see ARTODNATXKA8
22,160,66
Oral-Bird-type not specified LD50:23,700 mg/kg Archives of Environmental
Contamination and Toxicology. (Springer-Verlag New York, Inc., Service
Center, 44 Hartz Way, Secaucus, NJ 07094) V.1- 1973-AECTCV 12,355,83
Oral-Rat LD50:27 mg/kg Farm Chemicals Handbook. (Meister Publishing, 37841
Euclid Ave., Willoughy, OH 44094)FMCHA2 -,C21,83
Consensus Reports:
Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program. EPA
Extremely Hazardous Substances List.
Standards and Recommendations
OSHA PEL: As NH3: CL 0.1 ppm; As NaN3: Cl 0.3 mg/m3 (skin)
ACGIH TLV: CL 0.29 mg/m3; Not Classifiable as a Human Carcinogen; CL 0.11
ppm (as hydrazoic acid vapor); Not Classifiable as a Human Carcinogen
DFG MAK: 0.07 ppm (0.2 mg/m3)
DOT Classification: 6.1; Label: Poison
SAFETY PROFILE:
Poison by ingestion, skin contact, intraperitoneal, intravenous, and
subcutaneous routes. Human systemic effects by ingestion: general
anesthesia, somnolence, and kidney changes. Questionable carcinogen with
experimental tumorigenic data. Human mutation data reported.
Violent reaction with benzoyl chloride combined with KOH, Br2, barium
carbonate, CS2, Cr(OCl)2, Cu, Pb, HNO3, BaCO3, H2SO4, hot water, (CH3)2SO4,
dibromomalononitrile, sulfuric acid. Incompatible with acids, ammonium
chloride + trichloroacetonitrile, phosgene, cyanuric chloride,
2,5-dinitro-3-methylbenzoic acid + oleum, trifluroroacryloyl chloride.
Reacts with heavy metals (e.g., brass, copper, lead) to form dangerously
explosive heavy metal azides, a particular problem in laboratory equipment
and drain traps. When heated to decomposition it emits very toxic fumes of
NOx and Na2O. See also AZIDES.
Class: Agricultural Chemical; Mutagen; Questionable Carcinogen; Standards or
Recommendations
-----Original Message-----
From: Helen B. Gerhard <hbgerhard@MEDLOGIC.COM>
To: LABSAFETY-L@siu.edu <LABSAFETY-L@siu.edu>
Date: Tuesday, August 11, 1998 14:46
Subject: Sodium Azide
>Hi All:
>I have a chemist interested in using Sodium Azide as an anit-bacterial in
>laboratory solutions. He plans on purchasing 5 g and using to make 0.005%
>solution. He expects that the 5 g bottle may last as long as 6 months,
thus
>storage is an issue.
>I went to the NIH page describing the use of the material. However, I
>haven't seen any information on the amounts of the material used. I
>understand the material is highly toxic and thus we'll use reasonable
>controls (e.g. proper gowning, use of hood, respirators, etc). However, I
>am more concerned with the "explosive decomposition" of the material. How
>explosive will this 5 gram bottle be?
>Also, Aldrich offers the material in 99.99% + pure (with a notation of
>HIGHLY TOXIC, EXPLODES WHEN HEATED) and 99% without the accompanying
>notation. Does a ~1% difference in the purity make that much difference?
>Does anyone reading have more personal experience with the material? Are
>there other materials that could be substituted that are less problematic?
>Do I really have an issue here for the amount we'll be using (e.g. safety,
>storage, use)?
>Any information would be appreciated.
>Thanks!
>Helen
>
=========================================================================
Date: Tue, 11 Aug 1998 15:07:46 -0400
From: "Norman, Randy" <RNorman@MABIOSERVICES.COM>
Subject: Re: Sodium Azide
MIME-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
Basic hazard minimization: buy the smallest quantities AND MOST DILUTE
SOLUTIONS of hazardous materials that will do the job. There must be
appropriate dilute solutions available that would avoid the serious hazards
of pure sodium azide!
At the use concentration he is aiming for, the sodium azide is not a major
hazard. I wouldn't pour it down the sinks (to avoid accumulation of other
azide salts from reaction with metal plumbing components), nor would I drink
it, but there's no explosion hazard with the very dilute solution he's
trying to prepare. Don't take my word for it - check out an MSDS for one of
the typical reagents which use sodium azide at similar concentrations as a
preservative!
But there should be no excuse for buying the nasty stuff for such a task!
Kinda like buying 70% Perchloric Acid just to make 1N solutions - you've
gotta keep your eyes open for these things!
Randy Norman
Safety Manager
MA BioServices, Inc.
Rockville, MD 20850
Rnorman@mabioservices.com <mailto:Rnorman@mabioservices.com>
"Success is a journey, not a destination" - Ben Sweetland
=========================================================================
Date: Tue, 11 Aug 1998 16:29:33 -0400
From: Jeff Stefani <Jeff.Stefani@NOAA.GOV>
Subject: Experiment Planning
Greetings -
I wonder who has a procedure to review the operations of a lab experiment which
uses chemicals? Perhaps you have it in your Chemical Hygiene Plan.
We'd like to formalize the process of experiment planning as described in the
book "Prudent Practices in the Laboratory, Handling and Disposal of Chemicals."
Thank you.
Jeff Stefani
EHS
NOAA Marine Fisheries
fax: 619-546-7152
=========================================================================
Date: Tue, 11 Aug 1998 14:13:48 -0700
From: Timettra Wellington <sttwelli@JASPER.UOR.EDU>
Organization: University of Redlands
Subject: White Phosphorus
Mime-Version: 1.0
Content-Type: multipart/alternative;
boundary="------------0EB68E3B2871BF1855D80472"
--------------0EB68E3B2871BF1855D80472
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Hi everyone,
I am currently working at the University of Redlands in the Science Department. We
have ~1.5 pounds of white phosphorus packed in oil. What I need from you guys is
to know if anyone knows any practical use for such an unstable element.
Additionally, I would like to know if anyone out there needs or wants the stuff.
Thanks in advance,
Timettra Wellington
Science Lab Tech
University of Redlands
sttwelli@uor.edu
Chemica pecunii gratis
--------------0EB68E3B2871BF1855D80472
Content-Type: text/html; charset=us-ascii
Content-Transfer-Encoding: 7bit
<HTML>
Hi everyone,
I am currently working at the University of Redlands in the Science
Department.  We have ~1.5 pounds of white phosphorus packed in oil. 
What I need from you guys is to know if anyone knows any practical use
for such an unstable element.  Additionally, I would like to know
if anyone out there needs or wants the stuff.
Thanks in advance,
Timettra Wellington
 Science Lab Tech
 University of Redlands
 sttwelli@uor.edu
  
<DL>
<PRE>Chemica pecunii gratis</PRE>
</DL>
</HTML>
--------------0EB68E3B2871BF1855D80472--
=========================================================================
Date: Tue, 11 Aug 1998 14:54:59 -0700
From: Timettra Wellington <sttwelli@JASPER.UOR.EDU>
Organization: University of Redlands
Subject: White Phosphorus
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Hi everyone,
I am currently working at the University of Redlands in the Science
Department. We have ~1.5 pounds of white phosphorus packed in oil.
What I need from
you guys is to know if anyone knows any practical use for such an
unstable element.
Additionally, I would like to know if anyone out there needs or wants
the stuff.
Thanks in advance,
Timettra Wellington
Science Lab Tech
University of Redlands
sttwelli@uor.edu
Chemica pecunii gratis
=========================================================================
Date: Wed, 12 Aug 1998 08:37:13 -0500
From: Hiram Patterson <HPatterson@TAMBCD.EDU>
Subject: Re: White Phosphorus
MIME-Version: 1.0
Content-Type: text/plain
Timettra,
I would call your hazardous waste disposal company as soon as
possible and get rid of the phosphorous; its too dangerous to handle and
there is no practical nor safe use for it in a teaching laboratory.
Make sure the container is intact and that the oil completely covers the
phosphorous. The military uses it for marking targets in various types
of munitions.
Hiram Patterson
Safety Manager, Baylor College of Dentistry
> ----------
> From: Timettra Wellington[SMTP:sttwelli@JASPER.UOR.EDU]
> Sent: Tuesday, August 11, 1998 4:54 PM
> To: LABSAFETY-L@SIU.EDU
> Subject: White Phosphorus
> Hi everyone,
> I am currently working at the University of Redlands in the Science
> Department. We have ~1.5 pounds of white phosphorus packed in oil.
> What I need from you guys is to know if anyone knows any practical use
> for such an unstable element. Additionally, I would like to know if
> anyone out there needs or wants the stuff.
> Thanks in advance,
> Timettra Wellington
> Science Lab Tech
> University of Redlands
> sttwelli@uor.edu
>
> Chemica pecunii gratis
=========================================================================
Date: Wed, 12 Aug 1998 08:34:13 PDT
From: teresa stimpfel <terystim@HOTMAIL.COM>
Subject: Incident re:Sodium Azide
Content-Type: text/plain
Helen,
Some years ago at another university sodium azide caused an explosion.
Researcher used it in a water bath at very dilute concentration over a
long period. He drained the bath and sent it to the instrument shop for
repair. The technician couldn't remove the thermometer probe from the
stone block and started to file the block. It blew sending fine
fragments of the stone in all over. Fortunately the technician was
wearing safety glasses but it scared the daylights out of him!
Terry Stimpfel
Montclair State University
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
=========================================================================
Date: Wed, 12 Aug 1998 12:10:00 -0400
From: Christine Gourlie <cgourlie@PROCEPT.COM>
Subject: Acronym
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Hello All-
Was wondering if anyone would know what EEL stands for, as in EEL
requirements for an upscale in manufacturing???
TIA
Christine Gourlie
Manager, Env. Health & Safety
Procept, Inc.
cgourlie@procept.com
617-491-1100 x. 3305
=========================================================================
Date: Wed, 12 Aug 1998 13:21:20 -0700
From: Teresa Robertson <Teresa_Robertson@FIRSTCLASS1.CSUBAK.EDU>
Organization: CSU Bakersfield
Subject: Re: NFPA Style Rating for 2,4-DinitroPhenyl Hydrazine
MIME-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: 8bit
LABSAFETY-L@SIU.EDU,.internet writes:
>The following information was retrieved from
>http://chemfinder.camsoft.com/ .
>This is an EXCELLENT source of chemical information.
>MSDS for 2,4-DINITROPHENYLHYDRAZINE
EFFECTIVE: 03/05/87
> REVISION #02
>BAKER SAF-T-DATA(TM) SYSTEM
....chemfinder.... is an outstanding source of information, but I am
disappointed with the Utah link offering of outdated JTBaker msds.
JTBaker offers their latest msds on the WWW. How can we get Utah and
chemfinder to update?
=========================================================================
Date: Wed, 12 Aug 1998 15:51:28 -0600
From: Mark Smith <smithme@ALPHA.HENDRIX.EDU>
Subject: Clip-art for Powerpoint
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Fellow Labsafety folks,
I am working on several powerpoint presentations for Hazcom, Chemical
Hygiene, and Bloodborne Pathogens training and was wondering if anyone knew
of a good source for clip-art that would relate to some of the training
objectives.
I am working in a Mac environment which may make some difference on my choices.
Thanks.
MS
***************************************
MARK SMITH
HENDRIX COLLEGE CHEMISTRY
LABORATORY COORDINATOR
CHEMICAL HYGIENE OFFICER
***************************************
1600 Washington Ave
Conway, AR 72032
501-450-3812
Fax : 501-450-3829
***************************************
=========================================================================
Date: Wed, 12 Aug 1998 17:14:18 -0400
From: Christine Gourlie <cgourlie@PROCEPT.COM>
Subject: acronym
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Hello All -
Was wondering if anyone in the manufacturing world out there knows what
"EEL" stands for - has something to do with a scale up of production and
you must meet "EEL requirements"???
TIA
Christine
Christine Gourlie
Manager, Env. Health & Safety
Procept, Inc.
cgourlie@procept.com
617-491-1100 x. 3305
=========================================================================
Date: Wed, 12 Aug 1998 14:12:02 -0700
From: Michael Ahler
<Ahler_Michael_D/cpslo_employee1@POLYMAIL.CPUNIX.CALPOLY.EDU>
Subject: Clip-art for Powerpoint
Comments: To: smithme@ALPHA.HENDRIX.EDU
In-Reply-To: <"v01540b00b1f7bdb78553(a)(091)150.208.202.107(093)*"@MHS>
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII; name="Clip-art"
Content-Transfer-Encoding: 7bit
Fellow Clippers,
I have recently purchased a bargain molecular modeling software package
from Molecular Arts. This company also offers collection of Clip Art
(in several scientific and technical categories). Anyone interested in
acquiring usable clipart ( as for a Power Point presentation) should
check out the link at http://www.molecules.com/m3d25sfs.htm
Thanks.
Michael Ahler
Chemical Hygiene Officer
Cal Poly State University
San Luis Obispo, California
=========================================================================
Date: Wed, 12 Aug 1998 21:48:26 EDT
From: Labsafe@AOL.COM
Subject: Re: NACHO Breakfast
Comments: To: jbutrym@gaulin-rannie.com
Mime-Version: 1.0
Content-type: text/plain; charset=US-ASCII
Content-transfer-encoding: 7bit
In a message dated 98-08-12 12:02:10 EDT, you write:
<< What/Where is the Nacho Breakfast for sure... I've had a hard time
decifering the details from all the postings to Labsafety. >>
The NACHO Breakfast is going to be held in the Back Bay Hilton at
7AM on Monday, August 24th. The Council Committee on Chemical
Safety meets at 8:30AM. That gives us plenty of time for a leisurely
breakfast and then adjourn to the meeting.
If folks will let me know that they plan to attend, I will have a blok of
tables
set aside. .. jim
=========================================================================
Date: Thu, 13 Aug 1998 08:02:09 EDT
From: Labsafe@AOL.COM
Subject: Newsletter Submissions Requested
Comments: To: Listserv@list.uvm.edu, Safe-NZ@niwa.cri.nz,
nsela-l@science.coe.uwf.edu, NAOSMM@LISTSERV.RICE.EDU,
dchas-l@SIU.EDU, chemlab_L@vax1.bemidji.msus.edu,
CHEMCOM@LISTSERV.ACSU.BUFFALO.EDU, chemed-l@atlantis.UWF.edu,
biopi-l@sku.edu, APCHEM-L@LISTSERV.ACSU.BUFFALO.EDU
Mime-Version: 1.0
Content-type: text/plain; charset=US-ASCII
Content-transfer-encoding: 7bit
The Laboratory Safety Workshop would like to invite contribitutions of
articles, news items, accident stories, guest editorials for publication in
our newsletter "Speaking of Safety".
Materials can be submitted to the address below. Electronic submission by
either email or disk is appreciated.
If we publish your article or guest editorial, your'll receive a complimentary
one year subscription (three issues). ... jim
*****************************************************
James A. Kaufman, President
The Laboratory Safety Workshop
192 Worcester Road, Natick, MA 01760
508-647-1900 Fax: 508-647-0062 LabSafe@aol.com
Safety in Science Education
The Laboratory Safety Workshop is a national non-profit educational
organization dedicated to making health and safety an integral and
important part of science education. Free copies of our Laboratory
Safety Guidelines, Publications List, AV-Lending Library List, seminar
schedule, and membership information are available on request.
The LABSAFETY-L discussion list is a public service of LSI.
Visit our growing web site at www:LABSAFETY.ORG
**********************************************************************
=========================================================================
Date: Thu, 13 Aug 1998 07:29:16 -0700
From: Neal Langerman <chemsaf@IX.NETCOM.COM>
Subject: Re: NACHO Breakfast
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Jim:
Unless things turn sour for me, I will be there. See you then.
Neal
At 09:48 PM 8/12/98 EDT, you wrote:
>In a message dated 98-08-12 12:02:10 EDT, you write:
><< What/Where is the Nacho Breakfast for sure... I've had a hard time
> decifering the details from all the postings to Labsafety. >>
>The NACHO Breakfast is going to be held in the Back Bay Hilton at
>7AM on Monday, August 24th. The Council Committee on Chemical
>Safety meets at 8:30AM. That gives us plenty of time for a leisurely
>breakfast and then adjourn to the meeting.
>If folks will let me know that they plan to attend, I will have a blok of
>tables
>set aside. .. jim
>
*************************************************************
NEAL LANGERMAN chemsaf@ix.netcom.com
ADVANCED CHEMICAL SAFETY
8909 Complex Drive
San Diego CA 92123-1418
619 874 5577 (phone) 619 874 8239 (FAX)
619 990 4908 (cellular)
visit our homepage: http://www.chemical-safety.com
*************************************************************
=========================================================================
Date: Thu, 13 Aug 1998 11:06:05 +0100
From: Anne Skinner <Anne.R.Skinner@WILLIAMS.EDU>
Subject: Re: NACHO Breakfast
In-Reply-To: <ba1de638.35d245eb@aol.com>
MIME-version: 1.0
Content-type: text/plain; charset=us-ascii
Jim -- I plan to attend and hope to see lots of others there.
Anne Skinner
/O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\
Si Si Si Si Si Si Si Si Si Si Si Si Si Si Si
\O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/
Dr. Anne Skinner
Chemistry Department, Williams College
47 Lab Campus Drive
Williamstown, MA 01267
anne.r.skinner@williams.edu
Phone: (413) 597-2285
Fax No: (413) 597-4116
/O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\ /O\
Si Si Si Si Si Si Si Si Si Si Si Si Si Si Si
\O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/ \O/
=========================================================================
Date: Thu, 13 Aug 1998 11:13:06 EDT
From: Martin Besant <MBesant@AOL.COM>
Subject: Re: LABSAFETY-L Digest - 9 Aug 1998 to 10 Aug 1998
Mime-Version: 1.0
Content-type: text/plain; charset=US-ASCII
Content-transfer-encoding: 7bit
Topic LD-50
Building on the Martini idea presented earlier.
First some background
We use a sodium carbonate solution as an example of aids transmission. Most
students receive distilled water but one or two get dilute na2co3. After a few
"exchanges" of luid, the instructor tests for HIV with phenolphthalein
So here's the adaptaion. Each row of students receives a cup of dilute vinegar
with phenolphthalein. Perhaps a range of dilutions to demonstrate the varying
immunities or resistance or body weight (small to large concentrations could
represent varying body weight)
Then each is invited to partake of the poison a fixed number of times as in
the Martini demonstartion.
A few students in each row would die. But there would be a row with 50% death.
I'm thinking and writing at the same time and can see that this needs some
polish, but I have a strong feeling that the needd to incorporate some
demonstartion of body weight variability is needed to bring the demo into full
focus with the definition of LD-50
Marty Besant
West Seneca East Sr HS
A suburb of Buffalo, NY
If Yoda so much of the force has
Why he so word order bad is
=========================================================================
Date: Thu, 13 Aug 1998 12:24:29 -0400
From: "David (Fuzz) Harrison" <fdh@ARETHA.JAX.ORG>
Subject: Re: White Phosphorus
In-Reply-To: <35D0B40A.E4A063A9@uor.edu>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Timettra:
One option you may have is recycling. While active duty in the Navy I did
ordnance management, among other things, and observed an interesting method
of dealing with surplus white phosphorus ordnance. The Naval Weapons
Support Center in Crane, Indiana, developed a safe, cost effective method
for disposing of 16-inch WP (called "willie peter" in the military) shells.
They would heat the shells in an inert environment to melt the WP, punch a
hole in the side of the shell, rotate it to pour the WP out, then
chemically treat to produce phosphoric acid. They had a contract with
Coca-Cola and periodically a truck would pull-in, load-up, and head for a
coke manufacturing plant (check the ingredients listed on the can on your
desk). That was in 1990...and it may still be going on for all I know
(they've since decommissioned all four battleships with 16-inch guns).
I'm not necessarily suggesting you contact the NWSC in Crane, but you might
have some luck with chemical recyclers. This would save on hazwaste
disposal costs.
At 02:13 PM 8/11/98 -0700, you wrote:
> Hi everyone, Additionally, I would like to know if anyone out there
>needs or wants the stuff. Thanks in advance, Timettra Wellington
>Science Lab Tech
>University of Redlands
>sttwelli@uor.edu
> Chemica pecunii gratis
Fuzz Harrison, Industrial Hygienist
The Jackson Laboratory, 600 Main Street, Bar Harbor ME 04609-1500
(http://www.jax.org/)
207.288.6473 voice, 207.288.6147 fax, fdh@aretha.jax.org email
=========================================================================
Date: Thu, 13 Aug 1998 12:53:32 -0400
From: "Walters.Douglas" <walters@NIEHS.NIH.GOV>
Subject: Re: NACHO Breakfast
MIME-Version: 1.0
Content-Type: text/plain
See you there.
Doug Walters
walters@niehs.nih.gov
> ----------
> From: Labsafe@AOL.COM
> Reply To: LABSAFETY-L Discussion List
> Sent: Wednesday, August 12, 1998 9:48 PM
> To: LABSAFETY-L@SIU.EDU
> Subject: Re: NACHO Breakfast
> In a message dated 98-08-12 12:02:10 EDT, you write:
> << What/Where is the Nacho Breakfast for sure... I've had a hard time
> decifering the details from all the postings to Labsafety. >>
> The NACHO Breakfast is going to be held in the Back Bay Hilton at
> 7AM on Monday, August 24th. The Council Committee on Chemical
> Safety meets at 8:30AM. That gives us plenty of time for a leisurely
> breakfast and then adjourn to the meeting.
> If folks will let me know that they plan to attend, I will have a blok of
> tables
> set aside. .. jim
=========================================================================
Date: Thu, 13 Aug 1998 11:07:19 -0600
From: "Helen B. Gerhard" <hbgerhard@MEDLOGIC.COM>
Subject: Re: White Phosphorus
MIME-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
I'm not sure FDA would approve of raw material obtained in this way unless
they did a heck of a lot of testing to assure no contamination!
Thanks!
Helen
-----Original Message-----
From: David (Fuzz) Harrison [SMTP:fdh@ARETHA.JAX.ORG]
Sent: Thursday, August 13, 1998 10:24 AM
To: LABSAFETY-L@SIU.EDU
Subject: Re: White Phosphorus
Timettra:
One option you may have is recycling. While active duty in the Navy
I did
ordnance management, among other things, and observed an interesting
method
of dealing with surplus white phosphorus ordnance. The Naval
Weapons
Support Center in Crane, Indiana, developed a safe, cost effective
method
for disposing of 16-inch WP (called "willie peter" in the military)
shells.
They would heat the shells in an inert environment to melt the WP,
punch a
hole in the side of the shell, rotate it to pour the WP out, then
chemically treat to produce phosphoric acid. They had a contract
with
Coca-Cola and periodically a truck would pull-in, load-up, and head
for a
coke manufacturing plant (check the ingredients listed on the can on
your
desk). That was in 1990...and it may still be going on for all I
know
(they've since decommissioned all four battleships with 16-inch
guns).
I'm not necessarily suggesting you contact the NWSC in Crane, but
you might
have some luck with chemical recyclers. This would save on hazwaste
disposal costs.
At 02:13 PM 8/11/98 -0700, you wrote:
> Hi everyone, Additionally, I would like to know if anyone out
there
>needs or wants the stuff. Thanks in advance, Timettra Wellington
>Science Lab Tech
>University of Redlands
>sttwelli@uor.edu
> Chemica pecunii gratis
Fuzz Harrison, Industrial Hygienist
The Jackson Laboratory, 600 Main Street, Bar Harbor ME 04609-1500
(http://www.jax.org/)
207.288.6473 voice, 207.288.6147 fax, fdh@aretha.jax.org email
=========================================================================
Date: Thu, 13 Aug 1998 13:17:09 EDT
From: stefan <EHSADM5@UCONNVM.UCONN.EDU>
Subject: Re: NACHO Breakfast
In-Reply-To: <ba1de638.35d245eb@aol.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Content-Transfer-Encoding: 7BIT
On Wed, 12 Aug 1998 21:48:26 EDT said:
>The NACHO Breakfast is going to be held in the Back Bay Hilton at
>7AM on Monday, August 24th. The Council Committee on Chemical
>Safety meets at 8:30AM. That gives us plenty of time for a leisurely
>breakfast and then adjourn to the meeting.
************* SEPARATOR ***********************************
I realize scheduling conflicts will occur, but I want to point out to
attendees that there are some very good General Session topics running
simultaneously on Monday morning, which I have been asked to preside over.
I'll actually start the events with my own talk- "in the Aftermath of a
RCRA inspection: a university's experience" at 8:30. Other topics that
morning include: new developments on contact lens- wearing in labs; Plant
process safety; ChemMIST; global chemical control laws; and chemical
safety practices in micro-and biomedical labs. See the program for
more information. Hope to see some of you there!
Stefan Wawzyniecki, CIH, NRCC-CHO
University of Connecticut
=========================================================================
Date: Thu, 13 Aug 1998 13:32:31 -0500
From: Harry Elston <helston@FGI.NET>
Subject: Re: White Phosphorus
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
At 12:24 PM 8/13/98 -0400, you wrote:
>Timettra:
(snip)
> They had a contract with
>Coca-Cola and periodically a truck would pull-in, load-up, and head for a
>coke manufacturing plant (check the ingredients listed on the can on your
>desk). That was in 1990...and it may still be going on for all I know
>(they've since decommissioned all four battleships with 16-inch guns).
>I'm not necessarily suggesting you contact the NWSC in Crane, but you might
>have some luck with chemical recyclers. This would save on hazwaste
>disposal costs.
I've always wondered where the burning sensation came from in a can of
Coke. Yum, Yum....I like a little vanilla syurp in mine ;)
Harry
Harry J. Elston, Ph.D., NRCC-CHO
Chemical Hygiene Officer
Illinois Department of Nuclear Safety
Opinions are mine, not my employer's, blah, blah, blah
"God made all those stars out of nothin'. He just
'pfffft' and there they were."
-Larry the Cucumber, Veggie Tales
=========================================================================
Date: Thu, 13 Aug 1998 11:48:24 -0700
From: Timettra Wellington <sttwelli@JASPER.UOR.EDU>
Organization: University of Redlands
Subject: Re: White Phosphorus
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Vanilla syrup?? I never thought of that. Maybe I'll give it a try.{:-)
Thanks
Timettra Wellington
Science Lab Tech
University of Redlands
sttwelli@uor.edu
Chemica pecunii gratis
=========================================================================
Date: Thu, 13 Aug 1998 14:59:54 -0400
From: Mary Ann Solstad <msolstad@MEDIAONE.NET>
Subject: Re: LABSAFETY-L Digest - 9 Aug 1998 to 10 Aug 1998
In-Reply-To: <75c627fe.35d30283@aol.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
At 11:13 AM 8/13/98 EDT, you wrote:
>Topic LD-50
>Building on the Martini idea presented earlier.
>First some background
>We use a sodium carbonate solution as an example of aids transmission. Most
>students receive distilled water but one or two get dilute na2co3. After a
few
>"exchanges" of luid, the instructor tests for HIV with phenolphthalein
>So here's the adaptaion. Each row of students receives a cup of dilute
vinegar
>with phenolphthalein. Perhaps a range of dilutions to demonstrate the varying
>immunities or resistance or body weight (small to large concentrations could
>represent varying body weight)
>Then each is invited to partake of the poison a fixed number of times as in
>the Martini demonstartion.
>A few students in each row would die. But there would be a row with 50%
death.
>I'm thinking and writing at the same time and can see that this needs some
>polish, but I have a strong feeling that the needd to incorporate some
>demonstartion of body weight variability is needed to bring the demo into
full
>focus with the definition of LD-50
No need. Body wt. is taken care of within the LD50, as its usually --mg/kg
of body wt. LC-50 is a bit different, as its ppm(in air) for __hrs, to 50%
fatality.
The AIDs transmission demo is interesting, although I doubt if you get the
dilution effect with HIV.
Mary Ann
>Marty Besant
>West Seneca East Sr HS
>A suburb of Buffalo, NY
>If Yoda so much of the force has
>Why he so word order bad is
=========================================================================
Date: Thu, 13 Aug 1998 12:28:43 PDT
From: teresa stimpfel <terystim@HOTMAIL.COM>
Content-Type: text/plain
----Original Message Follows----
From: RPRNET/K3PO01/POSTMASTER
<IMCEAMS-RPRNET_K3PO01_POSTMASTER@centeon.com>
To: teresa stimpfel <terystim@HOTMAIL.COM>
Subject: Mail failure
Date: Wed, 12 Aug 1998 11:56:00 -0400
[002] Mail was received for unknown addresses.
Message was not delivered to
RPRNET/K3PO01/BRENIKJ (RPRNET/K3PO01/BRENIKJ)
------------------------------------------------------------------------
------
Microsoft Mail v3.0 (MAPI 1.0 Transport) IPM.Microsoft Mail.Note
From: teresa stimpfel
To: LABSAFETY-L@SIU.EDU
Subject: Incident re:Sodium Azide
Date: 1998-08-12 11:34
Priority: 3
Message ID: 4285B9EAEC31D2119B4F00805FEA7E28
Helen,
Some years ago at another university sodium azide caused an explosion.
Researcher used it in a water bath at very dilute concentration over a
long period. He drained the bath and sent it to the instrument shop for
repair. The technician couldn't remove the thermometer probe from the
stone block and started to file the block. It blew sending fine
fragments of the stone in all over. Fortunately the technician was
wearing safety glasses but it scared the daylights out of him!
Terry Stimpfel
Montclair State University
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
=========================================================================
Date: Fri, 14 Aug 1998 09:32:31 +1200
From: John Downey <John.Downey@WAITAKERE.GOVT.NZ>
Subject: Re: LABSAFETY-L Digest - 9 Aug 1998 to 10 Aug 1998
MIME-Version: 1.0
Content-Type: text/plain
Reminds me of a demo we did in Stage 2 Microbiology at Central Queensland
University to demonstrate STD transmission and how to track the source.
Everybody stood in a big circle on the lawn with a glove on their right
hand. The lab tech came round with a tray of marshmallows, one of which had
been inoculated with S. marcescens. Each of us picked a marshmallow at
random in our glove, then a second tech came round with a trigger spray
bottle, and we started squeezing the marshmallow, lubricated with a bit of
water, till it went all mushy. Once everybody's glove was all sticky, one
person went off and shook hands with someone else at random, a third tech
recorded who contacted whom, then the next person in the circle picked
another random contact, etc., till we had gone right round the circle. Then
we plated our hands.
Then we did a second lap, more water being added as the marshmallows dried.
Then plate again. I think we did about four laps of the circle.
Then we incubated our plates, which most of us remembered to identify as
round 1, 2 3 or 4, etc. By round 4, I think just about everybody was
infected out of a class of about 35 or so. And we isolated the source (amid
much hilarity) to one of two people.
As well as demonstrating how to track back on contacts from infectious
diseases, it was a salutory lesson in care in handling infectious specimens
- we were given graphic descriptions of where we would be spending most of
the next few days if we contaminated ourselves!!
It made an interesting conversation topic in the club over subsequent days.
John Downey
Waitakere City Council
> -----Original Message-----
> From: Mary Ann Solstad [SMTP:msolstad@MEDIAONE.NET]
> Sent: Friday, August 14, 1998 7:00 AM
> To: LABSAFETY-L@SIU.EDU
> Subject: Re: LABSAFETY-L Digest - 9 Aug 1998 to 10 Aug 1998
> At 11:13 AM 8/13/98 EDT, you wrote:
> >Topic LD-50
> >Building on the Martini idea presented earlier.
> >First some background
> >We use a sodium carbonate solution as an example of aids transmission.
> Most
> >students receive distilled water but one or two get dilute na2co3. After
> a
> few
> >"exchanges" of luid, the instructor tests for HIV with phenolphthalein
> >So here's the adaptaion. Each row of students receives a cup of dilute
> vinegar
> >with phenolphthalein. Perhaps a range of dilutions to demonstrate the
> varying
> >immunities or resistance or body weight (small to large concentrations
> could
> >represent varying body weight)
> >Then each is invited to partake of the poison a fixed number of times as
> in
> >the Martini demonstartion.
> >A few students in each row would die. But there would be a row with 50%
> death.
> >I'm thinking and writing at the same time and can see that this needs
> some
> >polish, but I have a strong feeling that the needd to incorporate some
> >demonstartion of body weight variability is needed to bring the demo into
> full
> >focus with the definition of LD-50
> No need. Body wt. is taken care of within the LD50, as its usually
> --mg/kg
> of body wt. LC-50 is a bit different, as its ppm(in air) for __hrs, to
> 50%
> fatality.
> The AIDs transmission demo is interesting, although I doubt if you get the
> dilution effect with HIV.
> Mary Ann
> >Marty Besant
> >West Seneca East Sr HS
> >A suburb of Buffalo, NY
> >If Yoda so much of the force has
> >Why he so word order bad is
> >
=========================================================================
Date: Fri, 14 Aug 1998 05:42:41 -0700
From: Becky Hoagland <HoaglanB@ARS.USDA.GOV>
Subject: Sodium Azide -Reply
Mime-Version: 1.0
Content-Type: text/plain
Helen, I've not had a lot of direct personal experience with sodium azide,
but I am somewhat familiar with some of it's more notorious
characteristics. It's been used for years in hospitals and other labs for
just the purpose your chemist has in mind....as an antibacterial, often in
water bath solutions. I had a researcher whose use of NaN3 for plant
tissue work was resulting in large quantities of very dilute NaN3
solutions, which we were disposing of as hazardous waste. However,
when I contacted the state regulators for an actual waste determination,
they said the spent solutions were NOT hazardous waste.
The major problem with NaN3 is that the azide ions can react with other
metals to form explosive compounds. This has been the case in
situations where spent solutions were disposed of down the drain, and
the material sat in contact with metal pipes for a period of time sufficient
to form the reactive constituents. The next thing you know, the lab is
experiencing some time of drain/plumbing problem, and the plumber
comes in to examine the pipes, but can't loosen the fittings. So he takes
his handy pipe wrench and gives the stubborn fittings a tap to
"persuade" them, and BOOM!!!
Something to keep in mind regarding the toxicity of NaN3 is that it is it has
been used to control hypertension in humans...again we recall the adage
that "the poison is in the dose."
The publication Hazardous Laboratory Chemicals Disposal Guide by
M.A. Armour (published by CRC Press) gives good coverage of the
physical and health hazards of NaN3, and some disposal options. Then,
of course, there's always "the Bible"...Bretherick's Handbook of
Reactive Chemical Hazards.
Regarding your question about substituting a more "user friendly"
concoction, I know there are some commercial products available out
there. Unfortunately, I can't provide you with any specifics at the
moment. I think some vendors that sell water bath units and related
equipment also sell these anti-bacterial solutions.
I hope all of my ramblings have provided you with something useful.
Good luck!!
Becky Hoagland
Environmental Protection Specialist
USDA-ARS
P.O. Box 225
Stoneville, MS 38776
Phone: 601-686-5432
Fax: 601-686-5373
E-mail: hoaglanb@ars.usda.gov
>>> "Helen B. Gerhard" <hbgerhard@MEDLOGIC.COM> 08/11/98
01:34pm >>>
Hi All:
I have a chemist interested in using Sodium Azide as an anit-bacterial in
laboratory solutions. He plans on purchasing 5 g and using to make
0.005%
solution. He expects that the 5 g bottle may last as long as 6 months,
thus
storage is an issue.
I went to the NIH page describing the use of the material. However, I
haven't seen any information on the amounts of the material used. I
understand the material is highly toxic and thus we'll use reasonable
controls (e.g. proper gowning, use of hood, respirators, etc). However,
I
am more concerned with the "explosive decomposition" of the material.
How
explosive will this 5 gram bottle be?
Also, Aldrich offers the material in 99.99% + pure (with a notation of
HIGHLY TOXIC, EXPLODES WHEN HEATED) and 99% without the
accompanying
notation. Does a ~1% difference in the purity make that much
difference?
Does anyone reading have more personal experience with the material?
Are
there other materials that could be substituted that are less problematic?
Do I really have an issue here for the amount we'll be using (e.g. safety,
storage, use)?
Any information would be appreciated.
Thanks!
Helen
=========================================================================
Date: Fri, 14 Aug 1998 09:01:19 -0400
From: Bob Burns <rburns@BIGFOOT.COM>
Subject: fire
MIME-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
We just had a minor fire outside our back door. A smoker left a butt in the
mulch and it started smoldering. No big deal, a little wateer put it out.
the potential is scary though.
We have a designated smoking room in the building, but make no effort to
regulate smoking outside. The smoking room reeks, as you might expect, so
people wpuld rather go outside.
Any thoughts? Anyone address this problem?
Tanks!
Bob
"Everything is easy for the person who does not have to do it!"
Robert L. Burns
Group Leader, R&D
RUETGERS Organics Corporation
201 Struble Road
State College, PA 16801
phone 814-231-9214
fax 814-238-1567
email rburns@bigfoot.com
=========================================================================
Date: Fri, 14 Aug 1998 05:53:34 -0700
From: Becky Hoagland <HoaglanB@ARS.USDA.GOV>
Subject: Re: NACHO Breakfast -Reply
Mime-Version: 1.0
Content-Type: text/plain
Jim, I'd like to be included in the NACHO breakfast. Wait...Let me reword
that. I'd like to be included among those attending the NACHO breakfast.
Thanks for all your efforts in putting this thing together. Looking forward
to meeting you in Boston.
Becky Hoagland
Environmental Protection Specialist
USDA-ARS
P.O. Box 225
Stoneville, MS 38776
Phone: 601-686-5432
Fax: 601-686-5373
E-mail: hoaglanb@ars.usda.gov
>>> <Labsafe@AOL.COM> 08/12/98 08:48pm >>>
In a message dated 98-08-12 12:02:10 EDT, you write:
<< What/Where is the Nacho Breakfast for sure... I've had a hard time
decifering the details from all the postings to Labsafety. >>
The NACHO Breakfast is going to be held in the Back Bay Hilton at
7AM on Monday, August 24th. The Council Committee on Chemical
Safety meets at 8:30AM. That gives us plenty of time for a leisurely
breakfast and then adjourn to the meeting.
If folks will let me know that they plan to attend, I will have a blok of
tables
set aside. .. jim
=========================================================================
Date: Fri, 14 Aug 1998 09:36:55 -0400
From: Robert Murphy <murphy@BGNET.BGSU.EDU>
Subject: Re: fire
In-Reply-To: <003401bdc783$a1753c20$0100007f@rburns.ruetgers-nease.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Having a specific area outside for the smokers would be nice. Get some
benches and sand pots for the butts. I have seen smoking patios where it a
canopy to keep people dry. That may work.
If they want to say inside, the smoking room needs to have excellent
exhaust and supply ventilation.
Hope this helps.
Bob
At 09:01 AM 8/14/98 -0400, you wrote:
>We just had a minor fire outside our back door. A smoker left a butt in the
>mulch and it started smoldering. No big deal, a little wateer put it out.
>the potential is scary though.
>We have a designated smoking room in the building, but make no effort to
>regulate smoking outside. The smoking room reeks, as you might expect, so
>people wpuld rather go outside.
>Any thoughts? Anyone address this problem?
>Tanks!
>Bob
>"Everything is easy for the person who does not have to do it!"
>Robert L. Burns
>Group Leader, R&D
>RUETGERS Organics Corporation
>201 Struble Road
>State College, PA 16801
>phone 814-231-9214
>fax 814-238-1567
>email rburns@bigfoot.com
******************************************
Robert Murphy, Industrial Hygienist
Environmental Health and Safety
Bowling Green State University
Phone: (419) 372-2171
=========================================================================
Date: Fri, 14 Aug 1998 06:50:04 -0700
From: MEMBERTO <MEMBERTO@ASUVM.INRE.ASU.EDU>
Subject: Re: fire
In-Reply-To: note of 08/14/98 06:45
One problem that a few of our office people have is when the smokers return
to the room, they bring the smell with them. The Reek travels.
=========================================================================
Date: Fri, 14 Aug 1998 10:03:32 -0400
From: "David (Fuzz) Harrison" <fdh@ARETHA.JAX.ORG>
Subject: Re: fire
In-Reply-To: <003401bdc783$a1753c20$0100007f@rburns.ruetgers-nease.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Bob:
Our lab is adjacent to Acadia National Park, and people are somewhat phobic
about fires around here: almost half of the island burned in 1947,
including the entire lab. We had a similar occurence last summer when the
fire hazard was high, so the lab instituted a policy of smoking only in
private vehicles---the last thing we want to be is a party to another large
fire on-island. When fire hazard conditions improved, the policy remained
in effect---to this day. We have no rooms designated for smoking (but then
we're not union either).
At 09:01 AM 8/14/98 -0400, you wrote:
>We just had a minor fire outside our back door. A smoker left a butt in the
>mulch and it started smoldering. No big deal, a little wateer put it out.
>the potential is scary though.
>We have a designated smoking room in the building, but make no effort to
>regulate smoking outside. The smoking room reeks, as you might expect, so
>people wpuld rather go outside.
>Any thoughts? Anyone address this problem?
>Tanks!
>Bob
>"Everything is easy for the person who does not have to do it!"
>Robert L. Burns
>Group Leader, R&D
>RUETGERS Organics Corporation
>201 Struble Road
>State College, PA 16801
>phone 814-231-9214
>fax 814-238-1567
>email rburns@bigfoot.com
Fuzz Harrison, Industrial Hygienist
The Jackson Laboratory, 600 Main Street, Bar Harbor ME 04609-1500
(http://www.jax.org/)
207.288.6473 voice, 207.288.6147 fax, fdh@aretha.jax.org email
=========================================================================
Date: Fri, 14 Aug 1998 10:15:39 -0400
From: Howard Spencer <SpencerH@ABSECON.GSTPA.COM>
Subject: Re: Clip-art for Powerpoint
MIME-Version: 1.0
Content-Type: text/plain
Try Clip Art 2000 from Molecular - see Mike Ahlers mail.
> ----------
> From: Mark Smith[SMTP:smithme@ALPHA.HENDRIX.EDU]
> Reply To: LABSAFETY-L Discussion List
> Sent: Wednesday, August 12, 1998 5:51 PM
> To: LABSAFETY-L@SIU.EDU
> Subject: Clip-art for Powerpoint
> Fellow Labsafety folks,
> I am working on several powerpoint presentations for Hazcom, Chemical
> Hygiene, and Bloodborne Pathogens training and was wondering if anyone
> knew
> of a good source for clip-art that would relate to some of the
> training
> objectives.
> I am working in a Mac environment which may make some difference on my
> choices.
> Thanks.
> MS
> ***************************************
> MARK SMITH
> HENDRIX COLLEGE CHEMISTRY
> LABORATORY COORDINATOR
> CHEMICAL HYGIENE OFFICER
> ***************************************
> 1600 Washington Ave
> Conway, AR 72032
> 501-450-3812
> Fax : 501-450-3829
> ***************************************
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Date: Fri, 14 Aug 1998 08:14:38 -0600
From: Linda Perez <liperez@NMSU.EDU>
Subject: Re: fire
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>We just had a minor fire outside our back door. A smoker left a butt in the
>mulch and it started smoldering. No big deal, a little wateer put it out.
>the potential is scary though.
>We have a designated smoking room in the building, but make no effort to
>regulate smoking outside. The smoking room reeks, as you might expect, so
>people wpuld rather go outside.
>Any thoughts? Anyone address this problem?
My suggestion would be to put one or two of those outside ashtrays with the
sand in the top by the doors where the smokers congregate. Not only will
you avoid the smoldering butts on the ground but also, the mess of butts
laying all over the ground. Your grounds department may even pay for them
if you point out the fire and the mess being left behind.
Linda
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
Linda S. Perez NAOSMM member #991 since 1994
Coordinator Ask Me!
New Mexico State University
Biology Department (505)646-3915
Box 30001 MSC 3AF (505)382-6547 pager
Foster Hall Room 130 (505)646-5665 fax
Las Cruces, NM 88003 liperez@nmsu.edu
***** http://pc-biology.nmsu.edu/linda/coordina.htm *****
//////////////////////////////////////////////////////////////////////
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Date: Fri, 14 Aug 1998 11:22:14 -0400
From: Madelyn Miller <mmiller@ANDREW.CMU.EDU>
Subject: Re: fire
In-Reply-To: <01J0L22Z0AXU99TNDK@asu.edu>
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Greetings All,
In addition to sand for butts you should keep your mulch wet around
areas smoking congregate. Smokers just love to send their burning
projectiles soaring. Like a spitting contest. Wow did you see how far
I got that one!
Madelyn
----------------------
Madelyn Miller
Chemical Safety Specialist,CCHO
Environmental Health & Safety
Carnegie Mellon University
mmiller@andrew.cmu.edu
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Date: Fri, 14 Aug 1998 11:51:51 -0400
From: "Robert N. Nelson" <robert.n.nelson@GASOU.EDU>
Subject: Re: fire
In-Reply-To: <SIMEON.9808141114.G@miller-pc.PC.CC.CMU.EDU>
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At 11:22 8/14/98 -0400, you wrote:
At NASA's Goddard Space Flight Center where I have spent some time, they
use a device called a "Smoker's Outpost" (tm). It has an enclosed metal
bucket topped by a roughly 3 foot long tubular top with several openings
near the top. The idea is that the first few cigarettes dropped down the
tube into the bucket use up most of the oxygen in the unit so that later
cigarettes go out quickly due to lack of oxygen. It certainly seems to
keep the odor down and because it is covered, you don't have the ugly mess
of cigarette butts floating in brown goo after a rain storm. NASA policy
forbids smoking in buildings and on loading docks but sets aside a
reasonably sheltered outdoor area near each building for smokers.
Bob Nelson
Robert N. Nelson <robert.n.nelson@gasou.edu> Chem. Dept. Georgia Southern
Univ.
P.O.B. 8064, Statesboro, GA 30460-8064 912-681-5675 (voice) 912-681-0699 (fax)
*********
From 3/15/98 to 8/10/98 I can be reached at NASA Goddard Space Flight Center,
301-286-5620
**************
The opinions expressed here are my personal opinions and do not
necessarily reflect the views of my employer.
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Date: Fri, 14 Aug 1998 09:28:09 -0700
From: Teresa Robertson <Teresa_Robertson@FIRSTCLASS1.CSUBAK.EDU>
Organization: CSU Bakersfield
Subject: Re: fire
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We also use the "smokers's outpost", and have found another advantage
in addition to those already mentioned. We used to have the large
round cylinders with the sand in the top, and people found those
convenient to use to prop open doors, frequently tipping them over
moving them about. They don't try to prop the doors with the
"Outposts". TRR
LABSAFETY-L@SIU.EDU,.internet writes:
>At 11:22 8/14/98 -0400, you wrote:
> At NASA's Goddard Space Flight Center where I have spent some
>time, they
>use a device called a "Smoker's Outpost" (tm). It has an enclosed metal
>bucket topped by a roughly 3 foot long tubular top with several openings
>near the top. The idea is that the first few cigarettes dropped down
>the
>tube into the bucket use up most of the oxygen in the unit so that later
>cigarettes go out quickly due to lack of oxygen. It certainly seems to
>keep the odor down and because it is covered, you don't have the ugly
>mess
>of cigarette butts floating in brown goo after a rain storm. NASA
>policy
>forbids smoking in buildings and on loading docks but sets aside a
>reasonably sheltered outdoor area near each building for smokers.
>Bob Nelson
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Date: Fri, 14 Aug 1998 20:40:06 EDT
From: Martin Besant <MBesant@AOL.COM>
Subject: Re: LABSAFETY-L Digest - 12 Aug 1998 to 13 Aug 1998
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To Mary Ann Solstad
While I agree that the units of LD-50 provide for body weight. I do not think
that any of the previously suggested demos model this variable.
In the candy or jelly bean demo, everyone takes candy until they get a "black"
jelly bean. Obviously larger ingestions of a toxin will result in higher
mortality until 50% is reached. But all students are treated as having the
same resistance to the toxin.
I believe there needs to be a limiting reagent within the demo to model the
variable tolerance of subjects to a toxin. A person could be subjected to a
large dose yet survive due to the larger body weight. I do not believe this is
adequately modeled in the other suggested demonstrations.
The marshmallow idea for modeling communicable disease transmission has an
interesting suggestion that I will bring back to our classes. The recording of
partners and the method of retracing the disease to the source host
Marty Besant
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Date: Fri, 14 Aug 1998 22:39:34 -0400
From: Mary Ann Solstad <msolstad@MEDIAONE.NET>
Subject: Re: LABSAFETY-L Digest - 12 Aug 1998 to 13 Aug 1998
In-Reply-To: <12815f09.35d4d8e7@aol.com>
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At 08:40 PM 8/14/98 EDT, you wrote:
>To Mary Ann Solstad
>While I agree that the units of LD-50 provide for body weight. I do not think
>that any of the previously suggested demos model this variable.
>In the candy or jelly bean demo, everyone takes candy until they get a
"black"
>jelly bean. Obviously larger ingestions of a toxin will result in higher
>mortality until 50% is reached. But all students are treated as having the
>same resistance to the toxin.
>I believe there needs to be a limiting reagent within the demo to model the
>variable tolerance of subjects to a toxin. A person could be subjected to a
>large dose yet survive due to the larger body weight.
Not if the dose was given, as is the standard in toxicology, as mg/kg of
body wt. Of course, the variation in resistance is another matter, which
is why we study populations, not individuals. Forgive me. 20 yr ago, as
supv. of a toxicology lab, i used to have to explain basic toxicology,
metabolisim, etc., to sleepy ER doctors trying to figure out what the lab
results meant.
Did the demo I described midway in this thread, not original with me, of
the LD50 of martinis, ever make the list. I had trouble sending it--it got
bounced back to me.
Mary Ann
>I do not believe this is
>adequately modeled in the other suggested demonstrations.
>The marshmallow idea for modeling communicable disease