DCHAS-L Discussion List Archive
Date: Thu, 9 Apr 2009 15:59:05 -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: Mixtures of Oleum and Perchloric acid
Comments: To: Little Helga
Whether or not you mix 70% perchloric
acid with
Oleum in any proportions depends on your desire or reluctance to make
(if you
are a male) your wife a widow.
Very few males have such
intentions. I
recommend that you follow their example.
Jay Young
PS: In case you have missed my
point--DON'T
MIX!
*****************************************************
----- Original Message -----
Sent: Wednesday, April 08, 2009
6:51
PM
Subject: [DCHAS-L] Mixtures of
Oleum and
Perchloric acid
Does anyone know of a potential hazard of
mixing 70%
perchloric acid with oleum (% SO3 to react with most of the water in
the
perchloric acid).
The research group is trying to make
~100% sulfuric
acid and ~100% perchloric acid to oxidize small quanities of carbon
(graphite)
at temperatures ranging up to 70 C. The group understands the usual
problems
with handling oleum and they know that 100% perchloric acid by its
self is a
major safety problem.
Concentrations of the "100% perchloric acid"
would be in
the range of 10 to 30% in the oleum.
Bob Small
RS Associates
Tucson, AZ
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