Platinum, 10% on activated carbon paste, Type 128M
Insoluble in water, mineral acids, and organic acids. Soluble in boiling aqua regia (reacts), and molten alkali cyanides (reacts).
Platinum as a catalyst is used for hydrogenation of alkenes, alkynes, nitro groups. It is also used for hydrogenolysis of cyclopropanes, catalyzes oxidation of alcohols.
Stable under recommended storage conditions. Incompatible with oxidizing agents, organic materials and flammable substances.
Irving Langmuir. The absorption of gases on plane surfaces of glass, mica and platinum. J. Am. Chem. Soc. 1918, 40, (9), 1361-1403.