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Subject:
Peroxide Question
Date:
Sep 17, 2010 13:17 UTC
Author:
Bill Galdenzi <bill.galdenzi**At_Symbol_Here**BOEHRINGER-INGELHEIM.COM>
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Subject:
Re: Peroxide Question
Date:
Sep 17, 2010 23:56 UTC
Author:
George Walton <g.c.walton**At_Symbol_Here**REACTIVES.COM>
From:
Rob Toreki <info**At_Symbol_Here**ILPI.COM>
Subject:
Re: Peroxide Question
Date:
Sep 17, 2010 14:12 UTC
Reply-To:
DCHAS-L Discussion List
In-Reply-To:
<31CDAB47DAE8804085500A5498BBB79606E327CF**At_Symbol_Here**RDGEXM01.am.boehringer.com>
Date: Fri, 17 Sep 2010 10:12:27 -0400
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: ILPI <info**At_Symbol_Here**ILPI.COM>
Subject: Re: Peroxide Question
In-Reply-To: <31CDAB47DAE8804085500A5498BBB79606E327CF**At_Symbol_Here**RDGEXM01.am.boehringer.com>
That would really depend
on the intended use.
For example, if the
material is going to be distilled or otherwise concentrated, the
peroxide concentration could increase many times and rise to dangerous
levels. Any solvent with detectable levels should have to be
pre-treated to remove all traces of peroxide before
distillation.
If the solvent was going to be
used to elute materials on an activated alumina column, then minor
levels of peroxide would not concern me as they would be adsorbed on the
alumina, albeit in active form. Note, however, that if the levels
were high or the quantity of solvent run through the column was large,
then the alumina could contain significant levels of peroxides and have
to be treated before disposal.
Rob
Toreki
=======================================================
Safety Emporium - Lab & Safety Supplies featuring brand
names
On Sep 17, 2010, at 9:17 AM, Bill Galdenzi
wrote:
All,
I
have a question: What concentration of peroxide do you folks
use for your =93acceptable=94 level? What is the basis for
this level?
Thanks for your help.
Bill
Galdenzi
Environmental, Health, and Safety
Boehringer-Ingelheim
Pharamceuticals
(203)
778-7759
