"Ron Natalie" wrote in message
m...
Actually, absent any actual fire and as long as you don't get so
confined with the flood of Halon that you can't believe, the stuff
is pretty inert. It does like any expanding liquid get very cold.

There are some obnoxious products (HBr, HCl) liberated when the
stuff is interacting with fire, but those are in fairly small
quantities.

Most of my info on Halon comes from a couple of NFPA booklets
on the subject I got back when I was working with the stuff in
the computer industry.

That is the same info as I had from the few halon extinguishers to which I
have had access when I worked on electronic equipment, and also when
recently studying for a refrigerant license. There are actually a number of
halons; so that specific information, such as an MSDS, might require a
little information from the label on the extinguisher. With that as a
starting point, the rest is only a Google (or Yahoo) search away.

Peter