Niobium oxide

Niobium oxide, archaically called columbium oxide,^[1] may refer to:

Niobium monoxide (niobium(II) oxide), NbO
Niobium dioxide (niobium(IV) oxide), NbO₂
Niobium pentoxide (niobium(V) oxide), Nb₂O₅

In addition to the above, other distinct oxides exist

general formula Nb_3n+1O_8n−2 where n ranges from 5 - 8 inclusive, e.g. Nb₈O₁₉ (Nb₁₆O₃₈).^[2]
Nb₁₂O₂₉ and Nb₄₇O₁₁₆

Natural niobium oxide is sometimes known as niobia.

References

^ Kamat, G. R.; Gupta, C. K. (Oct 1971). "Open aluminothermic reduction of columbium (Nb) pentoxide and purification of the reduced metal". Metallurgical Transactions. 2 (10): 2817–2823. doi:10.1007/BF02813257. ISSN 0026-086X.
^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.

This set index article lists chemical compounds articles associated with the same name.
If an internal link led you here, you may wish to change the link to point directly to the intended article.

[1] Kamat, G. R.; Gupta, C. K. (Oct 1971). "Open aluminothermic reduction of columbium (Nb) pentoxide and purification of the reduced metal". Metallurgical Transactions. 2 (10): 2817–2823. doi:10.1007/BF02813257. ISSN 0026-086X.

[2] Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.

[1]

[2]