The Heterogeneous Distribution of Anions and Water Around a Clay Surface with Special Reference to Estuarine Systems

  • A. G. Thomas
  • V. W. Truesdale
  • C. Neal


This paper presents new information on the distribution of anions and water around clays in the estuarine environment. This information is not already available for two main reasons. Firstly, previous studies of this kind were confined to systems containing homoionic clays and simple electrolytes, and the information thereby obtained is consequently of limited application to the natural environment. Secondly, other more general clay/electrolyte studies, which might have been expected to be able to supply the required information, cannot because they failed to consider the possibility of a non-uniform distribution of species in solution.


Cation Exchange Capacity Heterogeneous Distribution Total Water Content Positive Site Total Chloride 
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  1. Bolt, G. H. and de Haan, F. A., 1965, Interactions between anions and soil constituents, jui: “Technical Reports Series”, 48:94, International Atomic Energy Agency, Vienna.Google Scholar
  2. Bolt, G. H. and Warkentin, B. P., 1958, The negative adsorption of anions by clay suspensions, Kolloid Z., 156:41.CrossRefGoogle Scholar
  3. Bower, C. A. and Goertzen, J. O., 1955, Negative adsorption of salts by soils, Soil Sci. Amer. Proc. 19:147.CrossRefGoogle Scholar
  4. Cook, J. M. and Miles, D. L., 1979, Methods for the analysis of groundwater, Institute of Geological Sciences, Internal Report No. WD/ST/79/5.Google Scholar
  5. Edwards, D. G. and Quirk, J. P., 1962, Repulsion of chloride by montmorillonite, J. Colloid. Sci., 17:872.CrossRefGoogle Scholar
  6. de Haan, F. A. M., 1964, The negative adsorption of anions (anion exclusion) in systems with interacting double layers, J. Phys. Chem., 68:2970.CrossRefGoogle Scholar
  7. de Haan, F. A. M. and Bolt, G. H., 1963, Determination of anion adsorption by clays, Proc. Soil Sci. Soc. Amer., 27:636.CrossRefGoogle Scholar
  8. Helmy, A. K., Natale, I. M. and Manolesi, M. E., 1980, Negative adsorption in clay-water systems with interacting double layers, Clays and Clay Minerals, 28:262.CrossRefGoogle Scholar
  9. Lyman, J. and Fleming, R. H., 1940, Composition of sea water, J. Mar. Res., 3:134.Google Scholar
  10. Murthy, A. S. P. and Ferrell, R. E., 1973, Distribution of major cations in estuarine sediments, Clays and Clay Minerals, 20:317.CrossRefGoogle Scholar
  11. Neal, C., 1977, The determination of adsorbed Na, K, Mg and Ca on sediments containing CaCO3 and MgCO3, Clays and Clay Minerals, 25:253.CrossRefGoogle Scholar
  12. Neal, C., Thomas, A. G. and Truesdale, V. W., 1982, The thermodynamic characterisation of clay electrolyte systems, Clays and Clay Minerals, 30:291.CrossRefGoogle Scholar
  13. Oldham, K. B., 1975, Composition of the diffuse double layer in sea water or other media containing ionic species of +2, +1, -1 and -2 charge types, J. Electroanal. Chem., 63:139.CrossRefGoogle Scholar
  14. Persson, G. A., 1975, Automatic colorimetric determination of low concentrations of sulphate for measuring SO2 in ambient air, Air and Water Pollut. Int, J., 10:139.Google Scholar
  15. Posner, A. M. and Quirk, J. P., 1964, The adsorption of water from concentrated electrolyte solutions by montmorillonite and illite, Proc. Roy. Soc., 278:35.CrossRefGoogle Scholar
  16. Riley, J. P. and Chester, R., 1971, “Introduction to Marine Chemistry”, Academic Press, London.Google Scholar
  17. Sayles, F. L. and Manglesdorf, P. C., 1977, The equilibrium of clay minerals with sea water: exchange reactions, Geochim. Cosmochim. Acta, 41:951.Google Scholar
  18. Schofield, R. K., 1947, Calculations of surface areas from measurements of negative adsorption, Nature, 160:408.CrossRefGoogle Scholar
  19. Schofield, R. K. and Talibuddin, O., 1948, Measurement of internal surface by negative adsorption, Faraday Soc. Discus., 3:51.Google Scholar
  20. Truesdale, V. W., Neal, C. and Thomas, A. G., 1983, A new perspective of several approaches to clay electrolyte studies. This volume, page 1.Google Scholar
  21. Zall, D. M., Fischer, D. and Garner, M. Q., 1956, Photometric determination of chlorides in water, Anal. Chem., 28:1655.CrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1984

Authors and Affiliations

  • A. G. Thomas
    • 1
  • V. W. Truesdale
    • 1
  • C. Neal
    • 1
  1. 1.Institute of HydrologyWallingford, OxonUK

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