||Influence of Organic Cosolvents on Sorption of Hydrophobic Organic Chemicals by Soils.
Nkedi-Kizza, P. ;
Rao, P. S. C. ;
Hornsby, A. G. ;
||Florida Univ., Gainesville. Dept. of Soil Science.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Organic compounds ;
Waste disposal ;
Organic solvents ;
Athracene compounds ;
Aromatic polycyclic compounds ;
Chlorine organic compounds ;
Nitrogen heterocyalic compounds ;
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Sorption of anthracene and two herbicides (diuron and atrazine) by soils from aqueous solutions and binary solvent mixtures consisting of methanol-water and acetone-water was measured. These data were used to evaluate recently proposed solvophobic theory for describing sorption of hydrophobic molecules from mixed solvents. As predicted by the theory, the sorption coefficient (K sup M) decreased exponentially with increasing fraction of the organic cosolvent (f sup c) in the binary solvent mixtures. (Copyright (c) 1985 by the American Chemical Society.)