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A rapid method for the formation of Fe(II), Fe(III) hydroxycarbonate

Published online by Cambridge University Press:  09 July 2018

R. M. Taylor ,
U. Schwertmann  and
H. Fechter
R. M. Taylor
Affiliation:
CSIRO Division of Soils, Private Bag 2, Glen Osmond, South Australia 5064
U. Schwertmann
Affiliation:
Lehrstuhl für Bodenkunde, Technische Universität Bodenkunde, 8050 Freising-Weihenstephan, FRG
H. Fechter
Affiliation:
Lehrstuhl für Bodenkunde, Technische Universität Bodenkunde, 8050 Freising-Weihenstephan, FRG
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Extract

Dark blue-green Fe(II)Fe(III) hydroxychlorides and -sulphates were described by Feitknecht & Keller (1950) and later by Bernal et al. (1959). To further understand the formation and transformation of these compounds, Taylor & McKenzie (1980) and Taylor (1980) prepared Fe(II)Al(III) and Fe(II)Fe(III) hydroxychlorides, -sulphates and -carbonates by a more controlled hydrolysis reaction. These compounds, referred to as ‘green rusts’ by Bernal et al. (1959), are isostructural with hydrotalcite. However, the X-ray diffraction patterns can vary with the M(II)/M(III) cation ratio as it departs from the ideal value of 3, and with the interlayer anion.

Type
Notes
Information
Clay Minerals , Volume 20 , Issue 1 , March 1985 , pp. 147 - 151
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1985

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