Date: Wed, 8 Apr 2009 15:51:57 -0700
Reply-To: Little Helga <littlehelga**At_Symbol_Here**COX.NET>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: Little Helga <littlehelga**At_Symbol_Here**COX.NET>
Subject: 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
 

Previous post   |  Top of Page   |   Next post



The content of this page reflects the personal opinion(s) of the author(s) only, not the American Chemical Society, ILPI, Safety Emporium, or any other party. Use of any information on this page is at the reader's own risk. Unauthorized reproduction of these materials is prohibited. Send questions/comments about the archive to secretary@dchas.org.
The maintenance and hosting of the DCHAS-L archive is provided through the generous support of Safety Emporium.