Valhall
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How stable would it have been in the kind of heat that a car in Florida reaches in the summer? The interior reaches 120 degrees F very quickly with the windows up. Do we know the flash point of choroform?
I was always struck by how quickly some of the experts said chloroform degraded or broke down. In order for the chloroform to be from Caylee, it would have had to have been in the trunk for at least a month. Obviously we know the trunk was opened several times during the interim (gas can incident if nothing else - and to put the bag of garbage from AL's house in it). So some of the fumes might have escaped. But it sat for two weeks in a hot car lot. Perhaps a chemist could help comment if heat accelerates the breakdown.
*snipped and cropped for space*
Okay, chloroform doesn't flash and isn't considered flammable. Now let's talk about the word "stability". The "instability" of chloroform is in reference to "liquid chloroform". The minute liquid chloroform hits air it starts evaporating. The elevated temperatures in the trunk would just increase the evaporation of the liquid chloroform to "free chloroform" (i.e. gaseous chloroform). Gaseous chloroform is pretty darned stable! And, in fact, breaks down in air very slowly. AND, with this being in a trunk where UV cannot assist in the break down of chloroform, the free chloroform would break down even slower than say outside in the sunlight. So...the trunk being closed up for two weeks would actually assist in maintaining the level of gaseous chloroform present.