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 0016 (OTTO) Platinum wire, 0.3 mm dia, 99.95%+ Cas 7440-06-4 - used in many applications including gasket or o-ring fabrication, thermocouples, electrical contacts, and heater coils.