Element Search
Rhenium (75Re186.207)
[7440-15-5]
[7440-15-5]
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Elemental Form| Retaining its crystalline structure at temperatures up to its melting point, rhenium is gray to black in powder form, silvery-white and lustrous as a solid. It does not occur naturally. Rhenium has one of the highest densities, exceeded only by platinum, iridium, and osmium. Only tungsten has higher melting points. Rhenium has good wear resistance and it can withstand arc corrosion. Rhenium's range of valences exceed that of all other elements. | ||||
| Melting Point | 3180°C | Boiling Point | 5900°C | |
| Density | 21.02g/cm3 | Themal Conductivity | 0.17cal/cm2/cm/s/°C | |
| Specific Heat @ 25°C | 0.033cal/g°C | Heat of Fusion | 7.9k-cal/g-atom | |
| Heat of Vaporization | 152k-cal/g-atom | Atomic Volume | 8.85W/D | |
| First Ionization Energy | 182K-cal/g-mole | Electronegativity | 1.9Pauling's | |
| Covalent Radius | 1.28Angstroms | Linear Coefficient of Expansion | 6.7x10-6K-1 | |
| Electrical Resistivity @ 20°C | 19.3µΩ-cm | Crystal Structure | Hexagonal | |
| Vapor Pressure @ 2000°C | 3x10-8mm | Thermionic Work Function | 4.8eV | |
| Modulus of Elasticity | 67x106psi | |||
