[Histonet] RE: picric acid

[Victor A. Tobias]

I vaguely remember reading about placing the container underwater to moisten the threads and then the lid could be removed. 

If you have any doubt have it disposed.

Always better to be safe than sorry.

Victor

Victor Tobias HT(ASCP)
Clinical Applications Analyst
Harborview Medical Center
Dept of Pathology Room NJB244
Seattle, WA 98104
vtobias <@t> u.washington.edu
206-744-2735
206-744-8240 Fax
=================================================
Privileged, confidential or patient identifiable information may be contained in this message. This information is meant only for the use of the intended recipients. If you are not the intended recipient, or if the message has been addressed to you in error, do not read, disclose, reproduce, distribute, disseminate or otherwise use this 
transmission. Instead, please notify the sender by reply e-mail, and then destroy all copies of the message and any attachments.

-----Original Message-----
From: histonet-bounces <@t> lists.utsouthwestern.edu [mailto:histonet-bounces <@t> lists.utsouthwestern.edu] On Behalf Of Geoff McAuliffe
Sent: Friday, February 03, 2012 11:17 AM
To: histonet <@t> lists.utsouthwestern.edu
Subject: Re: [Histonet] RE: picric acid

"Our chemical safety office informed us that friction from removing a cap can be enough to set it off."

I have heard this for many, many years but has there ever been a case of 
such a thing happening? Of course we should be cautions and keep our 
picric acid wet but ...
I have seen news clips in which the bomb squad packs explosives around 
the picric acid (from an old high school lab) out in a field and sets it 
off. BOOM! Sure, the picric acid was surrounded by explosives.

Geoff

On 2/3/2012 2:04 PM, Goins, Tresa wrote:
> The picric acid around the cap would not be "1%".  The acetone is long gone.  Wipe the threads or pipette the reagent from the bottle.
> Our chemical safety office informed us that friction from removing a cap can be enough to set it off.
>
> Tresa
>
> -----Original Message-----
> From: histonet-bounces <@t> lists.utsouthwestern.edu [mailto:histonet-bounces <@t> lists.utsouthwestern.edu] On Behalf Of Perry, Margaret
> Sent: Friday, February 03, 2012 11:51 AM
> To: histonet <@t> lists.utsouthwestern.edu
> Subject: [Histonet] picric acid
>
> I am curious how big an explosion there would be from 1% picric acid in acetone if a little dried around the cap.
>
> Margaret Perry HT(ASCP)
> Dept of Veterinary and  Biomedical services Box 2175 South Dakota State University Brookings SD 57007
> 605-688-5638
>
> _______________________________________________
> Histonet mailing list
> Histonet <@t> lists.utsouthwestern.edu
> http://lists.utsouthwestern.edu/mailman/listinfo/histonet
>
>
>
> _______________________________________________
> Histonet mailing list
> Histonet <@t> lists.utsouthwestern.edu
> http://lists.utsouthwestern.edu/mailman/listinfo/histonet
>
>


-- 
--
**********************************************
Geoff McAuliffe, Ph.D.
Neuroscience and Cell Biology
Robert Wood Johnson Medical School
675 Hoes Lane, Piscataway, NJ 08854
voice: (732)-235-4583
mcauliff <@t> umdnj.edu
**********************************************



_______________________________________________
Histonet mailing list
Histonet <@t> lists.utsouthwestern.edu
http://lists.utsouthwestern.edu/mailman/listinfo/histonet