Niobium monoxide
| Names | |
|---|---|
| Other names
niobium(II) oxide
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.031.631 |
PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| NbO | |
| Molar mass | 108.905 g/mol |
| Appearance | grey solid |
| Odor | odorless |
| Density | 7.30 g/cm3 |
| Melting point | 1,937 °C (3,519 °F; 2,210 K) |
| Solubility | slightly soluble in HCl insoluble in nitric acid |
| Structure | |
| Cubic, cP6 | |
| Pm3m, No. 221 | |
a = 0.4211 nm
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Formula units (Z)
|
3 |
| Thermochemistry | |
Heat capacity (C)
|
41.3 J/(mol·K) |
Std molar
entropy (S⦵298) |
48.1 J/(mol·K) |
Std enthalpy of
formation (ΔfH⦵298) |
−405.85 kJ/mol |
Gibbs free energy (ΔfG⦵)
|
−378.6 kJ/mol |
| Hazards | |
| GHS labelling: | |
| Warning | |
| H315, H319, H335 | |
| P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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Niobium monoxide is the inorganic compound with the formula NbO. It is a grey solid with metallic conductivity.