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Volatile products of clay mineral pyrolysis revealed by their effect on calcite

Published online by Cambridge University Press:  09 July 2018

L. Heller-Kallai ,
I. Miloslavski  and
Z. Aizenshtat
L. Heller-Kallai
Affiliation:
Department of Geology, Institute of Earth Sciences
I. Miloslavski
Affiliation:
Casali Institute of Applied Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
Z. Aizenshtat
Affiliation:
Casali Institute of Applied Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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Abstract

The volatiles produced when various clay minerals were pyrolysed under a stream of He or in vacuo were condensed and analysed. They contain a wide range of cations and anions in concentrations ranging from ppm to hundreds of ppm. The reactivity of these volatiles was demonstrated by their reaction with calcite. It is suggested that the water liberated on heating acts as a scavenger of various impurities present in the clay.

Type
Research Article
Information
Clay Minerals , Volume 22 , Issue 3 , September 1987 , pp. 339 - 348
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1987

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