Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-07T21:26:00.405Z Has data issue: false hasContentIssue false
  • English
  • Français

Interstratification in Montmorillonite

Published online by Cambridge University Press:  01 January 2024

Rodney Tettenhorst  and
W. D. Johns
Rodney Tettenhorst
Affiliation:
The Ohio State University, Columbus, Ohio, USA
W. D. Johns
Affiliation:
Washington University, St. Louis, Missouri, USA
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Direct analysis by Fourier transform methods revealed interstratification of three components for a homogeneous, potassium-treated and organic-solvated montmorillon-ite. An initial simple interpretation based on random mixing of two components was shown to be incorrect. Ethylene glycol solvation showed enhanced expansion in agreement with earlier investigations. Glycerol solvation produced a noteworthy contribution from a 14 Å component. An interpretation of the 14 Å component is suggested, based on an asymmetric distribution of layer charge. Regular interstratification, bending or curling of clay layers and anomalous dehydroxylation temperatures may be a consequence of asymmetric layer charge distribution in montmorillonites.

Type
Symposium on Structural Aspects of Layer Silicate
Information
Clays and Clay Minerals (National Conference on Clays and Clay Minerals) , Volume 13 , February 1964 , pp. 85 - 93
Copyright
Copyright © The Clay Minerals Society 1964

References

Bradley, W. F. (1953) Analysis of mixed-layer clay mineral structures, Anal. Chem. 25, 727–30.CrossRefGoogle Scholar
Brown, G., and MacEwan, D. M. C. (1951) X-ray diffraction by structures with random interstratification, X-ray Identification and Crystal Structures of Clay Minerals (Edited by Brindley, G. W.), ch, XI, pp. 266–84, Mineralogical Society, London.Google Scholar
Cowley, J. M., and Goswami, A. (1961) Electron diffraction patterns from montmorillonite, Acta Cryst. 14, 1071–9.CrossRefGoogle Scholar
Greene-Kelly, R. (1955) Dehydration of the montmorillonite minerals, Mineral. Mag. 30, 604–15.Google Scholar
Kerr, P. F., Kulp, J. L., and Hamilton, P. K. (1951) Differential thermal analyses of reference clay mineral specimens, Reference Clay Minerals, American Petroleum Institute Research Project 49, Preliminary Report 3, pp. 1–48, Columbia University, New York.Google Scholar
Johns, W. D., Grim, R. E., and Bradley, W. F. (1954) Quantitative estimations of clay minerals by diffraction methods, J. Sediment. Petrol. 24, 242–51.Google Scholar
Johns, W. D., and Tettenhorst, R. T. (1959) Differences in the montmorillonite solvating ability of polar liquids, Am. Mineralogist 44, 894–6.Google Scholar
MacEwan, D. M. C. (1951) Montmorillonite minerals, X-ray Identification and Crystal Structures of Clay Minerals (Edited by Brindley, G. W.), ch. XV, pp. 86–137, Mineralogical Society, London.Google Scholar
MacEwan, D. M. C. (1956) Fourier transform methods for studying scattering from lamellar systems, Kolloid-Z. 149, 96–108.CrossRefGoogle Scholar
MacEwan, D. M. C., Ruiz Amil, A., and Brown, G. (1961) Interstratified clay minerals, X-ray Identification and Crystal Structures of Clay Minerals, 2nd ed. (Edited by Brown, G.), ch. XI, pp. 393–445, Mineralogical Society, London.Google Scholar
Radoslovich, E. W., and Norrish, K. (1962) The cell dimensions and symmetry of layer-lattice silicates, I, Some structural considerations, Am. Mineralogist 47, 599–616.Google Scholar
Sudo, T., Hayashi, H., and Shimoda, S. (1962) Mineralogical problems of intermediate clay minerals, Clays and Clay Minerals, 9th Conf. [1960], pp. 378–92, Pergamon Press, New York.Google Scholar