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Thorium, 90Th
Cas No. | 7440-29-1 |
Appearance | silvery, often with black tarnish |
Atomic Number(Z) | 90 |
Phase at STP | solid |
Melting point | 2023 K (1750 °C, 3182 °F) |
Boiling point | 5061 K (4788 °C, 8650 °F) |
Density (near r.t.) | 11.7 g/cm3 |
Heat of fusion | 13.81 kJ/mol |
Heat of vaporisation | 514 kJ/mol |
Molar heat capacity | 26.230 J/(mol·K) |