Niobium monoxide

Niobium monoxide
Names
	Other names niobium(II) oxide
Identifiers
CAS Number	12034-57-0 ;
3D model (JSmol)	Interactive image;
ChemSpider	74751 ;
ECHA InfoCard	100.031.631
PubChem CID	82838;
CompTox Dashboard (EPA)	DTXSID101014241 ;
	InChI InChI=1S/Nb.O Key: BFRGSJVXBIWTCF-UHFFFAOYSA-N ;
	SMILES O=[Nb];
Properties
Chemical formula	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
Crystal structure	Cubic, cP6
Space group	Pm3m, No. 221
Lattice constant	a = 0.4211 nm
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
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Niobium monoxide is the inorganic compound with the formula Nb O. It is a grey solid with metallic conductivity.

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