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NAPALM - A general term for jellied gasoline.
Gasoline, being a volatile, easily ignited compound with a
high energy density, was immediately used as a weapon in war. In
World War I, both Germany and the Allies used it in flame
throwers, but it burned itself too quickly to be very
effective at igniting the target of the flame throwers.
Intensive research to slow down the burning was funded by the U.S.
government, and in 1942 Harvard University scientists and the U.S.
army chemical warfare service found a way to jelly gasoline that
worked quite well.
By mixing aluminum soap powder of naphthene and palmitate
(hence na-palm), with gasoline produced a brownish sticky syrup
that burned more slowly than raw gasoline, and hence was much
more effective at igniting one's target. The napalm was mixed in
varying concentrations of 6% (for flame throwers) and 12-15% for
bombs mixed on site.
Napalm cannot be ignited by a match or even a flare