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Hey all you chemists out there! I don't quite know where to begin to give my colleague, Dexter, advice. Ideas? -----Original Message----- From: Dexter Debbie 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) dmdecker**At_Symbol_Here**ucdavis.edu Co-Conspirator to Make the World A Better Place -- Visit www.HeroicStories.com and join the conspiracy
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