Issue 10, 1972

Reactions of liquid sodium with transition-metal oxides. Part V. The oxides Fe3O4, Co3O4, and NiO; stoicheometry and reaction rates

Abstract

The stoicheiometry and rates of reaction of liquid sodium with the oxides Fe3O4, Co3O4, and NiO have been studied by measuring the quantity of sodium consumed over a range of reaction times and temperatures. The nickel oxide reaction becomes rapid above 150°, and the sodium consumed corresponds precisely to complete reduction to nickel metal. Reaction of Fe3O4 is slow below 250°; reduction to metallic iron is only 80% complete at 250°, and this is attributed to ternary oxide formation. The oxide Co3O4 reacts rapidly below 120°, and explosively above this temperature. Reduction to cobalt metal is about 90% complete at 120°.

Article information

Article type
Paper

J. Chem. Soc., Dalton Trans., 1972, 1020-1022

Reactions of liquid sodium with transition-metal oxides. Part V. The oxides Fe3O4, Co3O4, and NiO; stoicheometry and reaction rates

C. C. Addison and R. J. Pulham, J. Chem. Soc., Dalton Trans., 1972, 1020 DOI: 10.1039/DT9720001020

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