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A Glycol—Sodium Vermiculite Complex

Published online by Cambridge University Press:  01 January 2024

W. F. Bradley ,
E. J. Weiss  and
R. A. Rowland
W. F. Bradley
Affiliation:
Department of Chemical Engineering, The University of Texas, Austin, USA
E. J. Weiss
Affiliation:
Department of Chemical Engineering, The University of Texas, Austin, USA
R. A. Rowland
Affiliation:
Shell Development Company, Houston, Texas, USA
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Abstract

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A complex of vermiculite with ethylene glycol was prepared by repeated boiling of a sodium-saturated cleavage flake in dry ethylene glycol. A stable product with a c period of 12.9 Å afforded 15 terms for a one-dimensional Fourier synthesis. A model composed of glycol molecules with the plane of the zigzag normal to the silicate face is found to be consistent with the observed diffraction data. The complex apparently conforms to a stoichiometric ratio of two molecules per unit cell per layer of vermiculite.

Type
Symposium on Occurrence and Origin of Vermiculite
Information
Clays and Clay Minerals (National Conference on Clays and Clay Minerals) , Volume 10 , February 1961 , pp. 117 - 122
Copyright
Copyright © Clay Minerals Society 1961

Footnotes

EPR Publication no. 289, Shell Development Company, Exploration and Production Research Division, Houston, Texas.

References

Barnes, V. E. and Clabaugh, S. E. (1961) Vermiculite deposits near Llano, Texas: in Field Excursion, Central Texas, Texas Bur. Econ. Geology, Guidebook no, 3, pp. 45–53.Google Scholar
Bradley, W. F., Rowland, R. A., Weiss, E. J. and Weaver, C. E. (1958) Temperature stabilities of montmorillonite— and vermiculite—glycol complexes: in Clays and Clay Minerals, Nat. Acad. Sci.-Nat. Res. Council, pub. 566, pp. 348–355.Google Scholar
Bradley, W. F. and Serratosa, J. M. (1960) A discussion of the water content of vermiculite: in Clays and Clay Minerals, 7th Conf., Pergamon Press, New York, pp. 260–270.Google Scholar
Weiss, E. J. and Rowland, R. A. (1956) Oscillating-heating X-ray diffractometer studies of clay mineral dehydroxylation: Amer. Mm., v. 41, pp. 117–126.Google Scholar