SSSAJ Grow Your Career with SSSA
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Published in Soil Sci Soc Am J 26:234-237 (1962)
© 1962 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 Chao, T. T.
Right arrow Articles by Fang, S. C.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Chao, T. T.
Right arrow Articles by Fang, S. C.
Agricola
Right arrow Articles by Chao, T. T.
Right arrow Articles by Fang, S. C.

Adsorption and Desorption Phenomena of Sulfate Ions in Soils1

Tsun Tien Chao, M. E. Harward and S. C. Fang2

ABSTRACT

Four soils, of 15 examined, exhibited much higher adsorption of sulfate than the others.

Isotopic exchange studies indicated that sulfate which is retained by soils is in kinetic equilibrium with sulfate in solution. Adsorption-desorption studies using retentive soils also indicated that sulfate adsorption is dependent on the concentration of the equilibrium solution. The adsorption phenomena could be described by the Freundlich type equation. The data thus indicated that the sulfate-retentive soils did not possess adsorption maxima or definite anion exchange capacities, at least up to 500 ppm. S. Although certain soils were shown to have marked capacity to retain sulfate, the sulfate could be easily desorbed. As much as 45% of the sulfate initially adsorbed could be recovered in the first water extraction.

The lack of adsorption maxima is in contrast to cation-exchange reactions where more definite exchange capacities are observed. These data suggest that either anion exchange is not involved in the retention of sulfate or that other mechanisms in addition to anion exchange are involved with sulfate retention by these soils.

NOTES

1 Technical Paper No. 1418, Oregon Agr. Exp. Sta., Oregon State University, Corvallis. Supported in part through the financial assistance of U. S. Atomic Energy Commission.

2 Assistant Professor, and Associate Professors, respectively.

Received for publication June 20, 1961. Accepted for publication July 31, 1961.






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 © 1962 by the Soil Science Society of America.