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Hydration states of an expanded phlogopite in relation to interlayer cations

Published online by Cambridge University Press:  09 July 2018

T. D. Thompson
Affiliation:
Department of Geochemistry and Mineralogy, The Pennsylvania State University, University Park, Pa.
Sally A. Wentworth
Affiliation:
Department of Geochemistry and Mineralogy, The Pennsylvania State University, University Park, Pa.
G. W. Brindley
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, Pa.

Abstract

A 2–20 µ fraction of phlogopite has been converted to the sodium form by use of sodium tetraphenylboron-NaCl solutions. The cation exchange capacity of the treated material increases to a maximum of about 212 m-eq/100 g, which agrees well with the K2O + Na2O content of the initial mineral. Li-, Na-, Ca-, and Mg-saturated forms have been prepared and examined by X-ray diffraction and by thernogravimetric measurements in air, in vacuo, and at progressively elevated temperatures. Hydration states corresponding to double water layers are observed for the Mg- and Ca- forms, and to single water layers for the Mg-, Ca-, Na-, and Li- forms. The numbers of water molecules per unit cell and per interlayer cation are considered for the various hydration states.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1967

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References

Barshad, I. (1950) Am. Mine. 35, 225.Google Scholar
Barshad, I. (1952) Proc. Soil. Sci. Soc. A. 16, 176.CrossRefGoogle Scholar
Bradley, W.F. & Serratosa, J.M. (1960) Clays Clay Mine. 7, 260.CrossRefGoogle Scholar
Bradley, W. F., Weiss, E. J. & Rowland, R. A. (1963) Clays Clay Mine. 10, 117.Google Scholar
Foster, M. D. (1960) U.S. Geol. Survey Prof. Pape.354-B, 11.Google Scholar
Mathieson, A.MCL. & Walker, G. F. (1954) Am. Mine. 39, 231.Google Scholar
Rich, C.I. (1961) Soil Sc. 92, 226.CrossRefGoogle Scholar
Robert, M. & Pedro, G. (1965) C.r. hebd. Séanc. Acad. Sci., Paris 261, 4147.Google Scholar
Robert, M. & Pedro, G. (1966) Bull. Grpe fr. Argile.17, 3.Google Scholar
Scott, A.D., Hunziker, R.R. & Hanway, J.J. (1960) Proc. Soil Sci. Soc. A. 24, 191.Google Scholar
Scott, A. D. & Reed, M. G. (1962a) Proc. Soil Sci. Soc. A. 26, 41 CrossRefGoogle Scholar
Scott, A.D. & Reed, M. G. (1962b) Proc. Soil Sci. Soc. A. 26, 45 Google Scholar
Scott, A.D. & Smith, S.J. (1966) Clays Clay Mine. 14, 69.CrossRefGoogle Scholar
Shirozu, H. & Bailey, S.W. (1966) Am. Mine. 51, 1124.Google Scholar
van Olphen, H. (1965) J. Colloid Sc. 20, 822.Google Scholar
Walker, G. F. (1956) Clays Clay Mine. 4, 101.Google Scholar
Walker, G. F. (1961) X-ray Identification and Crystal Structures of Clay Minerals, 2nd edn. (Brown, G., ed.), Chap. 7, pp. 297324.Google Scholar
White, J. L. (1950) Proc. Soil Sci. Soc. A. 15, 129.Google Scholar