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Niobium
Phase at STP | solid |
Melting point | 2750 K (2477 °C, 4491 °F) |
Boiling point | 5017 K (4744 °C, 8571 °F) |
Density (near r.t.) | 8.57 g/cm3 |
Heat of fusion | 30 kJ/mol |
Heat of vaporization | 689.9 kJ/mol |
Molar heat capacity | 24.60 J/(mol·K) |
Appearance | gray metallic, bluish when oxidized |
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