DCHAS-L Discussion List Archive
Date: Thu, 18 Jun 2009 10:40:04 -0400
Reply-To: "Dr. Jay A. Young" <chemsafety**At_Symbol_Here**VERIZON.NET>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: "Dr. Jay A. Young" <chemsafety**At_Symbol_Here**VERIZON.NET>
Subject: Re: safe disposal of NaOH in THF
Comments: To: Koster Sandra K
Sandra,
Your friend has already conducted a
test for
peroxides in that THF and the result was affirmative!
That is, whenever you are concerned
about the
possible existence of peroxides in a peroxide former (such as THF, for
example),
your concern in and of itself is POSITIVE PROOF that it does
contain
peroxides and MUST be handled and disposed of accordingly. There
is no
need to perform any chemical testing.
Jay Young
********************************
----- Original Message -----
Sent: Wednesday, June 17, 2009
3:55
PM
Subject: [DCHAS-L] safe
disposal of NaOH
in THF
I have a colleague who needs to dispose of NaOH (about 1M) in 50:50 THF/water which has
turned orange
after 1-2 years. Any
thoughts? For example
will a
peroxide test be accurate in the presence of the NaOH?
Would
it be safe to neutralize the NaOH?
Thanks,
Sandra Koster
University of Wisconsin-La
Crosse
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