Names | |
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IUPAC name
Niobium(V) oxide
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Other names
Niobium pentoxide
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Identifiers | |
3D model (JSmol)
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ECHA InfoCard | 100.013.831 |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
Nb2O5 | |
Molar mass | 265.81 g/mol |
Appearance | white orthogonal solid |
Density | 4.60 g/cm3 |
Melting point | 1,512 °C (2,754 °F; 1,785 K) |
insoluble | |
Solubility | soluble in HF |
-10·10−6 cm3/mol [1] | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Niobium pentoxide is the inorganic compound with the formula Nb2O5. A colorless, insoluble, and fairly unreactive solid, it is the most widespread precursor for other compounds and materials containing niobium. It is predominantly used in alloying, with other specialized applications in capacitors, optical glasses, and the production of lithium niobate.[2]