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Niobium oxide

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Niobium oxide, archaically called columbium oxide, may refer to:

In addition to the above, other distinct oxides exist

  • general formula Nb3n+1O8nāˆ’2 where n ranges from 5 - 8 inclusive, e.g. Nb8O19 (Nb16O38).
  • Nb12O29 and Nb47O116

Natural niobium oxide is sometimes known as niobia.


References

  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): 2817ā€“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.
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