Platinum is a chemical element with symbol Pt and atomic number 78. It is dense, malleable, ductile, highly unreactive, precious, gray-white transition metal.
P 1935 (OTTO) Platinum wire, 0.3 mm dia, 99% Cas 7440-06-4 - used in the petroleum industry as a catalyst in a number of separate processes, but especially in catalytic reforming of straight-run naphthas into higher-octane gasoline that becomes rich in aromatic compounds. PtO2,