Date: Fri, 12 Mar 2010 15:57:00 -0800
Reply-To: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: "Debbie M. Decker" <dmdecker**At_Symbol_Here**UCDAVIS.EDU>
Subject: FW: Inactivation of Meta chloro peroxybenzoic acid
Comments: To: Laboratory Safety

Hey all you chemists out there!  I don't quite know where to begin to give 
my colleague, Dexter, advice.


-----Original Message-----
From: Dexter

We are using MCPBA to make some epoxides.  I need to purify the MCPBA 
before I use it and the wash and crystalization process leaves a 
significant anoumt in solution.  Usually dichloromethane. I will 
obviuosly discard this solution as toxic waste but I want to deactivate 
the MCPBA that remains.  I have read you can use NaI , ferrous ions, 
potassium hydroxide, sodium thiosulfate, etc.  What in your knowledge is 
the preferred method.  Thanks.   Dexter

Debbie M. Decker, Campus Chemical Safety Officer
Environmental Health and Safety
University of California, Davis
1 Shields Ave.
Davis, CA=A0 95616
(530)754-7964/(530)752-4527 (FAX)
Co-Conspirator to Make the World A 
Better Place -- Visit and join the conspiracy

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