Lee,
The problem with storing peroxide formers in so-called explosion proof
refrigerators is that they can be forgotten and remain "lost" in the back
corner on the bottom shelf. Further, the low temperature of a refrigerator
is not low enough to slow the peroxide forming reaction that will
occur--since that reaction is itself inherently slow .
Peroxide formers should be stored separately from other chemicals,
especially from oxidizing agents, in a cool, dry, storage room and
discarded, whether opened or not, before any peroxide is formed. For that
information, and for a list of peroxide formers, see Bretherick, of course.
If you don't have a copy of Bretherick, you really should get a copy, and
read it.
Jay Young
*****************************
----- Original Message -----
From: "Latimer, Lee"
To:
Sent: Tuesday, August 05, 2008 12:53 PM
Subject: Re: [DCHAS-L] Storage of Peroxide Formers
Going through old emails, I came by this one which is pertinent to a
discussion going on here.
I would appreciate background on why storing peroxide formers cold is a
bad idea.
I would also appreciate hearing about policies at other institutions,
especially corporate, on storage and on timed disposal. At a former
employer we had very stringent rules on ether and THF in particular.
What other solvents are in similar category besides di-isopropylether.
Thanks in advance.
Lee Latimer
-----Original Message-----
From: DCHAS-L Discussion List [mailto:DCHAS-L**At_Symbol_Here**LIST.UVM.EDU] On Behalf Of
Samuella B. Sigmann
Sent: Tuesday, October 30, 2007 6:18 AM
To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
Subject: [DCHAS-L] Storage of Peroxide Formers
The general storage protocol for diethyl ether, THF, etc. here in our
department has always been in refrigerators for designed for
flammables. I am trying to educate the faculty about the hazards
associated with the practice of refrigerating peroxide formers. Any
advice about what to say when confronted with, "...but I have always
done this and never had a problem."
Thanks in advance,
Sammye
--
************************************************************************
***************
The Washington Post's Style Invitational asked readers to take any word
from the dictionary, alter it by adding, subtracting, or changing one
letter, and supply a new definition.
*Dopeler** effect*: The tendency of stupid ideas to seem smarter when
they come at you rapidly.
Samuella B. Sigmann
Lecturer/Safety Committee Chair
A. R. Smith Department of Chemistry
Appalachian State University
525 Rivers Street
Boone, NC 28608
Phone: 828 262 2755
Fax: 828 262 6558
Email: sigmannsb**At_Symbol_Here**appstate.edu
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