Reactions of chromium oxides and chromium metal with disodium oxide

1 January 1975

journal article
research article
Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.

No. 23,p. 2487-2489
https://doi.org/10.1039/dt9750002487

Abstract

The ternary oxides NaCrO₂, Na₃CrO₄, and Na₄CrO₄ are characterised by X-ray powder-diffraction patterns. The compound NaCrO₂ has been prepared from equimolar quantities of Na₂O and Cr₂O₃, but Na₄CrO₄ is formed at higher concentrations of Na₂O or from reaction of Na₂O and Cr. The ternary oxide NaCrO₂ decomposes reversibly to simple oxides at ca. 795 °C.

Keywords

OXIDE THE TERNARY
CHROMIUM OXIDES
TERNARY OXIDES NACRO2
OXIDE NACRO2
DISODIUM
CR2O3
CHARACTERISED