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An Electron Microscope Study of Magnesium Smectite Synthesis

Published online by Cambridge University Press:  09 July 2018

T. Baird
Affiliation:
Department of Chemistry, The University of Glasgow, Glasgow G12SQQ
A. G. Cairns-Smith
Affiliation:
Department of Chemistry, The University of Glasgow, Glasgow G12SQQ
D. W. Mackenzie
Affiliation:
Department of Chemistry, The University of Glasgow, Glasgow G12SQQ

Abstract

The synthesis of magnesium smectite from heated slurries of magnesium hydroxide, silica and lithium fluoride proceeds through ready formation of torroidal structures visible under the electron microscope. These are associated with the synthesis of a smectite-like material with, however, only half the expected requirement for silica. True smectite only forms significantly with Si/Mg ratios > 1 and reaction times (at reflux) > 1-3 days.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1973

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