Palmitic acid World War II to produce napalm. The word "napalm" is derived from the words naphthenic acid and palmitic acid. Palmitic acid was discovered by Edmond Frémy in 1840, in saponified palm oil. This remains the primary industrial route for its production, with the triglycerides (fats) in palm oil being hydrolysed by high temperature water (above ), and the resulting mixture fractionally distilled to give the pure product. Palmitic acid is naturally produced by a wide range of other plants and organisms, typically at low levels. It is naturally present in butter, cheese, milk, and meat, as well as cocoa butter,
Foam weapon Europe and the UK, the terms "latex weapon" and "LARP-safe weapon" are more common, and combat is usually referred to as "LARP combat". Non-latex foam weapons are primarily used in Jugger and in the Finnish LARP community. The primary concern in designing a foam weapon is safety; a pulled blow with a foam weapon should not hurt the target, and in systems that allow it, even a full-strength blow should not cause injury. Combatants who consistently fail to pull their blows are liable to be ejected from an event, or at least pulled out of the fighting for safety reasons.