[Histonet] picric acid

Mark Turner mturner <@t> CSILaboratories.com
Fri Feb 3 13:40:12 CST 2012

The explosion I witnessed was initiated by a blasting cap.  The bomb squad director said it exploded with the force of several sticks of dynamite.  If anyone has picric acid still in their lab, exercise GREAT caution.  

Mark Turner, HT(ASCP) QIHC
IHC / Histology Manager

678-319-3321 Direct
770-508-7644 Cell                        
mailto:mturner <@t> csilaboratories.com

2580 Westside Parkway
Alpharetta, GA  30004

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-----Original Message-----
From: Rene J Buesa [mailto:rjbuesa <@t> yahoo.com] 
Sent: Friday, February 03, 2012 2:27 PM
To: histonet <@t> lists.utsouthwestern.edu; MargaretPerry
Subject: Re: [Histonet] picric acid

There have been cases where the rotary valve of VIPs have been damaged after using Bouin's fixative without proper washing. 
On the other hand I used to keep picric acid but always in saturated solution, which is about 1%. As long as you have water along with the picric acid bottle, there is no problem.
René J. 

--- On Fri, 2/3/12, Perry, Margaret <Margaret.Perry <@t> sdstate.edu> wrote:

From: Perry, Margaret <Margaret.Perry <@t> sdstate.edu>
Subject: [Histonet] picric acid
To: "histonet <@t> lists.utsouthwestern.edu" <histonet <@t> lists.utsouthwestern.edu>
Date: Friday, February 3, 2012, 1:50 PM

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

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