Element Search
Platinum (78Pt195.08)
[7440-06-4]
[7440-06-4]
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Elemental FormPlatinum black
Platinum flake
Platinum foil
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Platinum granules
Platinum ink for ceramic substrates
Platinum powder
Platinum flake
Platinum foil
Platinum gauze
Platinum granules
Platinum ink for ceramic substrates
Platinum powder
Platinum rod
Platinum shot
Platinum slug
Platinum sponge
Platinum sputtering target
Platinum tubing
Platinum wire
Platinum shot
Platinum slug
Platinum sponge
Platinum sputtering target
Platinum tubing
Platinum wire
| Platinum is a silvery-white, lustrous metal that is malleable and ductile when pure. It has magnetic properties when combined with cobalt. Platinum metal occurs in nature contaminated with small amounts of all the platinum group metals; iridium, osmium, palladium, ruthenium, and rhodium. It does not corrode or tarnish in air and is not affected by water. In its finely divided form, platinum is an excellent catalyst. Similar to palladium, platinum absorbs large volumes of hydrogen. | ||||
| Melting Point | 1768.4°C | Boiling Point | 3825°C | |
| Density | 21.45g/cm3 | Specific Heat @ 0°C | 0.0314cal/g°C | |
| Heat of Fusion | 4.7k-cal/g-atom | Heat of Vaporization | 122k-cal/g-atom | |
| Atomic Volume | 9.10W/D | First Ionization Energy | 207K-cal/g-mole | |
| Electronegativity | 2.2Pauling's | Covalent Radius | 1.30Angstroms | |
| Vickers Hardness (annealed) | 38-40 | Linear Coefficient of Expansion | 9.1x10-6K-1 | |
| Electrical Resistivity @ 20°C | 9.85µΩ-cm | Crystal Structure | Cubic, face centered | |
| Poisson Ratio | 0.39 | Young's Modulus of Elasticity | 24.8x106psi | |
| Tensile Strength (annealed) | 20,000psi | |||
