Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-27T22:06:40.449Z Has data issue: false hasContentIssue false
  • English
  • Français

The Synergetic Effect of Hydrogen Ions on the Cation Exchange of Potassium in Micas

Published online by Cambridge University Press:  09 July 2018

A. C. D. Newman
A. C. D. Newman*
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts
Get access Rights & Permissions [Opens in a new window]

Abstract

Interlayer K in eleven trioctahedral micas, with compositions ranging from fluorphlogopite to biotite, was replaced by treating cut flakes with aqueous solutions of Na salts at controlled pH values. Replacement in natural micas was faster at pH 4·5 than at pH 9, and there is a co-operative action or synergy of H+ and Na+ in replacing K+. The synergetic effect of H+ tends to be greatest in micas that lose most net negative charge when K is replaced, and increases when Fe2+ in biotite is oxidized by heating. Possible relationships between the synergetic effect and the chemical composition of micas are discussed in relation to the structure and chemical changes in the aluminosilicate layers when K is exchanged, and it is concluded that incorporation of protons into the structure is responsible for the synergetic effect.

Type
Research Article
Information
Clay Minerals , Volume 8 , Issue 4 , December 1970 , pp. 361 - 373
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1970

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bailey, S.W. (1966) Clays Clay Miner., 14th Natl. Conf., Berkeley, Calif., 1.Google Scholar
Barshad, I. & Kishk, F.M. (1968) Science, 162, 1401.Google Scholar
Bassett, W.A. (1959) Am. Miner. 44, 282, M.A. 14, 390.Google Scholar
Bassett, W.A. (1960) Bull. geol. Soc. Am. 71, 449, M.A. 15, 20.Google Scholar
Chute, J.H. & Quirk, J.P. (1967) Nature (London) 213, 1156 M.A. 19, 10.Google Scholar
Mathieson, A.McL. & Walker, G.F. (1954). Am. Miner. 39, 231.Google Scholar
Mortland, M.M. (1958) Proc. Soil Sci. Soc. Am. 22, 503.Google Scholar
Mortland, M.M. & Ellis, B.G. (1959) Proc. Soil Sci. Soc. Am. 23, 363.Google Scholar
Newman, A.C.D. & Brown, G. (1966) Clay Miner. 6, 297, M.A. 18, 155.Google Scholar
Newman, A.C.D. (1967) Clay Miner. 1, 215.Google Scholar
Newman, A.C.D. (1969) J. Soil Sci. 20, 357.Google Scholar
Newman, A.C.D. & Brown, G. (1969) Nature, Land., 223, 175.CrossRefGoogle Scholar
Raman, K.V. & Jackson, M.L. (1966) Clays Clay Miner., 14th Natl. Conf., Berkeley, Calif., 53, M.A. 18, 78.Google Scholar
Rausell-colom, J.A., Sweatman, T.R., Wells, C.B. & Normsh, K. (1965) Experimental Pedology (E. G. Hallsworth and D. V. Crawford, Eds.) London (Butterworths), 40.Google Scholar
Rayner, J.H. (1968) Rothamsted Experimental Station Report for 1968, Pt. I, 65.Google Scholar
Reed, M.G. & Scott, A.D. (1962) Proc. Soil Sci. Soc. Am. 26, 437, M.A. 18, 81.Google Scholar
Rimsaite, J. (1967) Clays Clay Miner., Proc. 15th Natl. Conf., London (Pergamon), 375.Google Scholar
Robert, M. & Pedro, G. (1968) C.R. Acad. Sci. Paris 267D, 1805.Google Scholar
Shirozu, H. & Bailey, S.W. (1966) Am. Miner. 51, 1124.Google Scholar
Vedder, W. (1964) Am. Miner. 49, 736.Google Scholar
Vedder, W. & McDonald, R.S. (1963) J. chem. Phys. 38, 1583.Google Scholar
Vedder, W. & Wilkins, R.W.T. (1969) Am. Miner. 54, 482.Google Scholar
Wells, C.B. & Norrish, K. (1968) Transact. 9th int. Congr. Soil Sci. 2, 683.Google Scholar