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Effect of Anions in the System on the Amount of Cations Adsorbed by Soil Materials
Author(s) -
Sommerfeldt Theron G.
Publication year - 1962
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1962.03615995002600020014x
Subject(s) - bentonite , loam , adsorption , chemistry , inorganic chemistry , magnesium , sodium , ion , geology , soil water , organic chemistry , soil science , paleontology
Wells fine sandy loam and Utah bentonite (noncalcareous) were equilibrated in solutions of NaOH, NaCl, Na 2 CO 3 and Na 2 SO 4 to determine the effect of the different anions on the amount of cations retained by these materials. Total exchangeable cations, exchangeable sodium and exchangeable calcium plus magnesium, as extracted by NH 4 OAc method, were greatly affected by the anions in the systems. Various possibilities for these results have been discussed. It was concluded that the adsorption capacity of the materials had not remained constant, but varied with the anion environment, and that this was the most important factor responsible for these results.