SSSAJ Journal of Natural Resources and Life Sciences Education
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
 QUICK SEARCH:   [advanced]


     


Published in Soil Sci Soc Am J 55:965-967 (1991)
© 1991 Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Sposito, G.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Sposito, G.
Agricola
Right arrow Articles by Sposito, G.

Effect of Chloride Ions on Sodium-Calcium and Sodium-Magnesium Exchange on Montmorillonite

Garrison Sposito*

Dep. of Soil Science, Univ. of California, Berkeley, CA 94720

*Corresponding author.

ABSTRACT

Recent theoretical and experimental studies of the effect of Cl ions on Na-Ca and Na-Mg exchange reactions with montmorillonite have produced conflicting data and conceptual models. A discussion is given of three of the key issues involved in this controversy with the objective of posing them more precisely as a guide to future research. The importance of clay mineral suspension characteristics (mineral purification, particle-size fraction, suspension density) is emphasized, and a charge balance condition on the surface excesses of Na+ and CaCl+ or MgCl+ species is pointed out. The role of anion exclusion in generating differences of adsorbed metal charge between Na- and either Ca- or Mg-montmorillonite also is clarified as it relates to exchange reactions in Cl vs. ClO4 ionic media.

Received for publication October 18, 1990.





HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
The SCI Journals Agronomy Journal Crop Science
Vadose Zone Journal Journal of Plant Registrations
Journal of Natural Resources
and Life Sciences Education
Journal of
Environmental Quality
Copyright © 1991 by the Soil Science Society of America.