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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