A rapid method for the formation of Fe(II), Fe(III) hydroxycarbonate
- 1 March 1985
- journal article
- Published by Mineralogical Society in Clay Minerals
- Vol. 20 (1) , 147-151
- https://doi.org/10.1180/claymin.1985.020.1.11
Abstract
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.Keywords
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