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A method to study the effect of chemical dissolution on the morphology of soil clay

Published online by Cambridge University Press:  09 July 2018

M. Hagiwara
M. Hagiwara*
Affiliation:
Faculty of Agriculture, Hirosaki University, Hirosaki 036, Japan
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Extract

Soil clays contain a relatively large amount of disordered inorganic material. Chemical dissolution has been used for the removal of this material (Jackson, 1956; Hashimoto & Jackson, 1960; Follett et al, 1965 a,b; Wada & Greenland, 1970). On the other hand, Farmer et al. (1977) claimed that dissolution of allophane and imogolite with hot 5% Na2CO3 for periods of 2-100 h led to new phases which could be distinguished from the starting material by infrared spectroscopy. It is clear, therefore, that chemical dissolution can alter soil clays. This note suggests an electron microscopy specimen preparation technique to study the morphological changes. Collodion films containing densely arranged minute hollows are used for specimen supports.

Type
Notes
Information
Clay Minerals , Volume 32 , Issue 2 , June 1997 , pp. 315 - 318
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1997

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