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X-ray studies of halloysite and metahalloysite

Part II. The transition of halloysite to metahalloysite in relation to relative humidity

Published online by Cambridge University Press:  14 March 2018

G. W. Brindley  and
J. Goodyear
G. W. Brindley
Affiliation:
Physics Laboratories, University of Leeds
J. Goodyear
Affiliation:
Physics Laboratories, University of Leeds
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Extract

The experiments described below on the dehydration of halloysite were largely carried out in the laboratoire Central des Services Chimiques de l'État, Paris, where we enjoyed not only the excellent facilities of the laboratory but also the advice of Monsieur J. Méring and Mile R. Glaser who had made similar studies of montmorillonite. The use of a Guinier-type focusing camera with strictly monochromatic radiation was especially useful. These experiments were undertaken because little was known about the dehydration process beyond the recognition that it occurs very readily in dry atmospheres and at low temperatures. The main experimental difficulty lies in differentiating between water adsorbed oil external surfaces of the clay particles (adsorbed water) and water internally absorbed between the kaolin layers (interlayer water).

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 28 , Issue 203 , December 1948 , pp. 407 - 422
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1948

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