Reactions of liquid sodium with transition-metal oxides. Part VII. The oxides of niobium and tantalum
- 1 January 1974
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 1,p. 55-58
- https://doi.org/10.1039/dt9740000055
Abstract
The reactions of the oxides Nb2O5, NbO2, NbO, and Ta2O5 with liquid sodium have been studied at 400 and 600 °C and the products examined by X-ray powder crystallography. In each case in which reaction took place the equilibrium products were found to be the transition metal together with the cubic form of Na3NbO4 or Na3TaO4. The possible reaction mechanisms of the oxides in liquid sodium are discussed. The reactions of the ternary oxides NaNbO3, NaTaO3, Na3NbO4, and Na3TaO4 with pure liquid sodium, and NaTaO3 and Na3TaO4 with oxygen-doped liquid sodium, have all been studied.Keywords
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