Niobium oxide

Niobium oxide, sometimes called columbium oxide,^{[citation needed]} 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).^[1]
Nb₁₂O₂₉ and Nb₄₇O₁₁₆

Natural niobium oxide is sometimes known as niobia.

References[]

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

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

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