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Charge densities and heats of immersion of some clay minerals

Published online by Cambridge University Press:  14 March 2018

R. Greene-Kelly
R. Greene-Kelly*
Affiliation:
Rothamsted Experimental Station, HarpendenHerts
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Abstract

The exchange capacities, surface areas (both external and total), and heats of immersion in water were measured on a selection of clay minerals and a fine-grained muscovite. The charge density (expressed as 103 X m-eq/m2) of muscovite was 3·6. This was, as expected, much higher than those of clay minerals which tended to group together, the average values being: kaolinites, 2·0; hydrous micas, 1·7; halloysites and montmorillonites, 1.4. The heats of immersion (expressed as J/m2) were, in contrast, more widely spread: muscovite, 0·63; halloysites and kaolinites, 0·49; hydrous micas, 0·28; montmorillonites, 0·14. The explanation advanced for the differences is that they reflect changes in surface energy and cohesion of the silicate layers.

Type
Research Article
Information
Clay Minerals Bulletin , Volume 5 , Issue 27 , July 1962 , pp. 1 - 8
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1962

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References

Brunauer, S., 1944. The Adsorption of Gases and Vapours. Oxford Univ. Press.Google Scholar
Brunauer, S., Kantro, D. L., and Weise, C. H., 1956.Canad. J. Chem., 34, 729.Google Scholar
Dyal, R. S., and Hendricks, S. B., 1950. Soil Sci., 69, 421.Google Scholar
Gallavan, R. C., 1959. J. appl. Physics, 10, 398.Google Scholar
Greene-kelly, R., 1953. Clay Win. Bull., 2, 52.Google Scholar
Greene-kelly, R., 1959. Nature, Lond., 184, 181.CrossRefGoogle Scholar
Greene-kelly, R. and Gallavan, R. C., 1957. Clay Min. Bull., 3, 170Google Scholar
Grim, R. E., 1953. Clay Mineralogy. McGraw-Hill, New York.Google Scholar
Harkins, W. D., and Boyd, G. E., 1942. d. Amer. chem. Soc., 64, 1195.Google Scholar
Kvznetsov, V. D., 1957. Surface Energy of Solids. H.M.S.O., London. (D.S.LR. translation from Russian.)Google Scholar
Macewan, D. M. C., 1956. Clays and Clay Minerals (Swineford, A., editor). Nat. Acad. Sci. —Nat. Res. Cotmc., Washington, Publ. 456, p. 166.Google Scholar
Mackenzie, R. C., 1951. J. Colloid Sci., 6, 219.Google Scholar
Mehra, O. P., and Jackson, M. L., 1959. Proc. Soil Sci. Soc. Amer., 23, 101.Google Scholar
Norrish, K., 1954. Disc. Faraday Soc., “No. 18, p. 120.Google Scholar
Smithson, F., and Brown, G., 1957. Miner. Mag., 31, 381.Google Scholar
Waoe, W. H., and Hackerman, N., 1959. J. phys. Chem., 63, 1639.Google Scholar
Wear, J. I., and White, J. L., 1951. Soil Sci., 71, 1.Google Scholar