Platinum is one of nine precious metals on the periodic table. It has a melting point of 1,772°C, a density of 21.4 g/cc, and vapor pressure of 10-4 Torr at 1,747°C. It is a radiant, silvery-white metal that bears a striking resemblance to palladium. It is dense, malleable, ductile, and corrosion resistant in air. Its most prominent commercial application is as a catalytic converter in vehicles. Platinum is evaporated under vacuum for the manufacture of semiconductors, fuel cells, and batteries. It is also utilized as a layer for optical coatings. Platinum is commonly found in jewelry and laboratory instruments.
Material Type | Platinum |
Symbol | Pt |
Atomic Weight | 195.084 |
Atomic Number | 78 |
Color/Appearance | Metallic Gray |
Thermal Conductivity | 72 W/m.K |
Melting Point (°C) | 1,772 |
Coefficient of Thermal Expansion | 8.8 x 10-6/K |
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