CH3NH2.HCl is very flammable
once upon a time a squab that i didn't know got impatient while drying some CH3NH2.HCl in the oven and cranked the heat to speed thing up a little, he came back minutes later to find 4-5 foot flames coming out of the oven, should see what the ceiling leading to the back door looked like after.
so the shit spontanously combusts at some temp between 200-400C.
luckily the adventurous newbee was able to smother the fire and salavage 800g of crispy looking CH3NH2.HCl
i don't know if throwing matchs at it would have ignited it as well, never had methylamine i could afford to burn.
"All those memories lost like rain..."
Rhodium - the vapours are not explosive?? i would have thought that any flammable vapour could explode if saturated in a small enough area, subject to a source of ignition.