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The cation-exchange capacity of hydrated halloysite and the formation of halloysite-salt complexes*

Published online by Cambridge University Press:  14 March 2018

W. G. Garrett
Affiliation:
Chemical Research Laboratories, C.S.I.R.O., Melbourne, Australia
G. F. Walker
Affiliation:
Chemical Research Laboratories, C.S.I.R.O., Melbourne, Australia
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Abstract

Examination of the cation-exchange capacity of a hydrated halloysite from Djebel Debar has disclosed no evidence for the proposed existence of exchangeable interlayer ions. A series of labile halloysite-salt complexes has been prepared. The requirements for effective intercalation of the salt are a high salt concentration in the external solution phase and a cation of low hydration energy.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1959

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Footnotes

*

During the course of this work, a brief account of which has been given previously (Garrett and Walker, 1957), tile penetration of ammonium fluoride into the interlayer regions of the Djebel Debar halloysite was reported by Weiss, Mehler, Koch and Hofmann (1956). More recently, Wada (1959) has described the intercalation of a number of salts in a halloysite from Japan.

References

Garrett, W. G., and Walker, G. F., 1957. Proc. Second Austral. Conf. Soil Sci., 1, (2), paper 74, 1.Google Scholar
Rivière, A., 1948. On the Base Exchange Capacity of Halloysites. Paper read before the French Commission des Argiles; summary in Clay Min. Bull., 1950. 1, 121.Google Scholar
Robertson, R. H. S., Brindley, G. W., and Mackenzie, R. C., 1954. Amer. Min., 39, 118.Google Scholar
Samson, H. R., and Schoeield, R. K., 1953. Clay Min. Bull., 2, 45.Google Scholar
Wada, K., 1959. Amer. Min., 44, 153.Google Scholar
Weiss, A., Mehler, A., Koch, G., and Hofmann, U., 1956. Z. anorg. Chem., 284, 247.Google Scholar