Date: Thu, 9 Apr 2009 08:29:23 -0400
Reply-To: "Samuella B. Sigmann" <sigmannsb**At_Symbol_Here**APPSTATE.EDU>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: "Samuella B. Sigmann" <sigmannsb**At_Symbol_Here**APPSTATE.EDU>
Subject: Re: Mixtures of Oleum and Perchloric acid
Comments: To: Little Helga
In-Reply-To: <B478FE90ACFE421EBA0487FEAA0FCD92**At_Symbol_Here**yourfsyly0jtwn>
Hi Bob - Here is the link to the prediction at Cameo Chemicals where you can "virtually mix" the two.
http://cameochemicals.noaa.gov/reactivity#Pair_1
Sammye
Little Helga wrote:
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 SmallRS AssociatesTucson, AZ
***************************************************************************************
Don’t always believe what you think.
Samuella B. Sigmann, NRCC-CHO
Lecturer/Safety Committee Chair
A. R. Smith Department of Chemistry
Appalachian
Phone: 828 262 2755
Fax: 828 262 6558
Email: sigmannsb**At_Symbol_Here**appstate.edu
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