I remember a number of years ago, in a catalogue, a glass tube with
holes in it to accept the tops of flasks or the tubes leading from them
which was connected to an aspiration device, (vacuum pump or water
faucet aspirator) that would draw the fume/vapor away and through an
appropriate solution to trap them.  It is something that could be easily
constructed if money was an issue.

Kenneth Smith
Retired Chief EH&S
Calif. Dept. Health Services
Richmond Laboratory

-----Original Message-----
From: DCHAS-L Discussion List [mailto:DCHAS-L**At_Symbol_Here**LIST.UVM.EDU] On Behalf Of
Gordon Miller
Sent: Thursday, June 14, 2007 1:08 PM
To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
Subject: [DCHAS-L] Perchloric Acid Scrubber

A chemist seeks to heat perchloric acid solution until it fumes and 
seeks a scrubber to protect the hood he wants to do this in under 
temperatures that exceed what Teflon-based equipment is good for.

Does anybody have suggestions?

"Inquiring minds want to know."
Gordon Miller
Lawrence Livermore National Laboratory
P.O. Box 808  (L-379)
Livermore, California 94550
(925) 423-8036
Fax (925) 422-5176
miller22**At_Symbol_Here**llnl.gov

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