On 30 Oct 2001, at 16:29, Reese wrote: > At 04:52 PM 10/30/01 -0800, [EMAIL PROTECTED] wrote: > >On 30 Oct 2001, at 14:51, Sandy Sandfort wrote: > > > >> Mike [[EMAIL PROTECTED]] wrote: > >> > >> > I would bet that there is SOMETHING that > >> > is dissolved by liquid freon. Just mark > >> > your letters with the stuff and look for > >> > the integrity of the mark at the other end. > >> > >> Or... is there something that REACTS to freon in an interesting way...? > >> > >> > >> S a n d y > >> > >> > >I think freon is incredibly inert, that's why it's used. > > Heat freon up enough, it turns into phosgene gas (as it breaks down > into simpler components). The CBR types call that Blood Agent. > Just think of how carbon monoxide supplants oxygen in your red blood > cells, that's what phosgene gas does. I do not seem to remember the > critical temperature but a lit cigarette will do it. > > Reese > > Here's a link to the MSDS http://www.ansul.com/Material_Safety_Data_Sheets/F-85312.pdf it says above 900 F Freon will decompose into hydrochloric and hydrofluoric acids. Doesn't mention phosgene, although you'd proabably get that if the air was dry enough.
George George
