Two synthetic compounds containing chromium in different valency states
Published online by Cambridge University Press: 14 March 2018
Summary
Two compounds, one an apatite and the other a perovskite, have been synthesized by sintering mixtures containing CaO and Cr2O3, and CaO, Cr2O3, and Fe2O3 respectively. The apatite formed by partial oxidation of the Cr2O3 and subsequent pick-up of moisture from the atmosphere, to give Ca5(CrO4)3OH. The perov-skite formed as a non-stoicheiometric compound Ca4(Fe,Cr)4O11 by partial oxidation of the Cr2O3 during firing. Lattice parameters and interplanar spacings are given for the two structures.
- Type
- Research Article
- Information
- Mineralogical magazine and journal of the Mineralogical Society , Volume 32 , Issue 248 , March 1960 , pp. 408 - 411
- Copyright
- Copyright © 1960, The Mineralogical Society
References
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