Products
| Niobium(Nb) | |
| 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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High grade Niobium oxide (Nb2O5) powder Assay Min.99.99%
Niobium Oxide, sometimes called columbium oxide, at UrbanMines refer to Niobium Pentoxide (niobium(V) oxide), Nb2O5. Natural niobium oxide is sometimes known as niobia.