Greetings all...

We have six empty cylinders in storage in our building that our Waste
Management department is trying to dispose of.  Five of them are
bromine pentafluoride and one is chlorine trifluoride.  So far the only
company that Waste Management can find to dispose of these cylinders
wants $2500 each to do so!!  As the cylinders are old (over 10 years or
so) Ozark Mahoning (the manufacturer) does not want them back.

Can anyone tell me how they dispose of these nasties?

Another question: how are people disposing of any unreacted BrF5 and
ClF3 after silicate analysis?  We invert our u-trap containing frozen
unreacted BrF5 over a bucket of KBr in a fumehood, but I've never
understood the reaction of these two compounds.  What neutralizing
chemical are others using, and what are the products of the chemical
reaction?

Thanks...

Tim Prokopiuk

-----------------------------------------------
Tim Prokopiuk
B. Sc. Geology/Technician
Saskatchewan Isotope Laboratory
Room 241
Department of Geological Sciences
University of Saskatchewan
114 Science Place
Saskatoon, Saskatchewan, Canada
S7N 5E2
Phone:  (306) 966-5712
Fax:            (306) 966-8593
Email:  [log in to unmask]