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The Adsorption of Zinc by Some Soils After Various Pre‐extraction Treatments
Author(s) -
Mangaroo A. S.,
Himes F. L.,
McLean E. O.
Publication year - 1965
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/sssaj1965.03615995002900030008x
Subject(s) - soil water , adsorption , zinc , extraction (chemistry) , chemistry , organic matter , environmental chemistry , soil science , geology , chromatography , organic chemistry
The adsorption of zinc by six soils was determined. Soils that formed under slightly acid or neutral conditions usually adsorbed larger quantities of Zn than soils formed under very acid conditions. The stability constants for the soil‐zinc systems after displacement of Zn by KCl and Cu(OAc) 2 were also higher for the near neutral soils. Soil from the Ap‐horizon was compared to soil from the Al‐horizon of the Hoytville soil series. The organic matter content did not explain the differences in the amounts of Zn adsorbed. The adsorption of Zn by the soils after extraction with hot water or C 6 H 6 ‐MeOH were usually slightly less than the non‐extracted soil. However, the quantities of Zn adsorbed by the soils after extraction with NaOH were greater than the non‐extracted soils. A large percentage of this Zn was not displaced with KCl but was displaced with Cu(OAc) 2 .