Assuming peroxybenzoic acid wil
l react the same as
peroxyacetic acid, then mixing the peroxybenzoic acid into water will ca
use it
to breakdown into water, carbon dioxide, and n-chlorobenzene, whi
ch
then needs can be disposed of by proper means.
> From: "Nai
l, John"
<jnail**At_Symbol_Here**OKCU.EDU>
> Reply-To:
DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**list.uvm.edu>
>
Date: Sun, 14 Mar 2010 09:46:11 -0500
> To: <DC
HAS-L**At_Symbol_Here**LIST.UVM.EDU>
>
Subject: Re: [DCHAS-L] Inactivation of Meta chloro peroxybenzoic acid
>
> Peroxyacids (RCO3H) are strong oxidizers; basically, they react
by
'donating'
> oxygen atoms to reducing agents
>
> RCO
3H +
reducing agent --> RCO2H (a carboxylic acid) + Reducing agent + an O
> atom; further chemistry may occur with the oxidized reducing
agent.
>
> Any decent reducing agent will work; one advanta
ge of
using Fe+2 ions, such as
> in ferrous ammonium sulfate, is that
the
Fe+2 will be oxidized to Fe+3; this
> should give a color change
which
can be used to confirm that the reaction
> occurred.
>
>
To answer the question, there may not be a 'preferred method'; there are
> dozens of reagents that should work.
>
> -----Orig
inal
Message-----
> From: DCHAS-L Discussion List [mailto:DCHAS
-L**At_Symbol_Here**LIST.UVM.EDU] On Behalf
Of
> Debbie M. Decker
> Sent: Friday, March 12, 2010 5:57
PM
> To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
>
Subject: [DCHAS-L] FW: Inactivation of Meta chloro peroxybenzoic acid
>
> 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 disca
rd
this solution as toxic waste but I want to deactivate
> the MCPBA
that
remains. I have read you can use NaI , ferrous ions,
> pota
ssium
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
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