Originally Posted by farna
Hence the acronym MAPP. Acetylene tanks have acetone in them, which absorbs the acetylene gas when under pressure, and easily releases it when depressurized. The acetone is also soaked into a fibrous material inside the tank, further stabilizing the mixture. Acetylene gas by itself is very unstable and can't be stored safely. MAPP can, and is much hotter than propane.
Thanks for the schooling, farna. Quite educational, and far less spam than the previous poster (rogerchang) had. Now, I'm glad to say I learned my new thing for the day.
In a while, Chet.