Main Title |
Influence of Solvent and Sorbent Characteristics on Distribution of Pentachlorophenol in Octanol-Water and Soil-Water Systems. |
Author |
Lee, L. S. ;
Rao, P. S. C. ;
Nkedi-Kizza, P. ;
Delfino., J. J. ;
|
CORP Author |
Florida Univ., Gainesville.;Robert S. Kerr Environmental Research Lab., Ada, OK. |
Publisher |
c1990 |
Year Published |
1990 |
Report Number |
EPA-R-814512; EPA/600/J-90/200; |
Stock Number |
PB91-116186 |
Additional Subjects |
Sorption ;
Solubility ;
Isotherms ;
Soils ;
Acidity ;
Water ;
Reprints ;
Pentachlorophenol ;
Partition coefficients ;
Octane ;
Binary mixtures
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB91-116186 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
10p |
Abstract |
Sorbent and solvent characteristics influencing sorption of pentachlorophenol (PCP) were investigated. Analysis of aqueous sorption data for several sorbents over a broad pH range suggested hydrophobic sorption of neutral PCP predominates at pH<7. At pH>7, sorption of the pentachlorophenolate anion PCP(-1) and the formation and sorption of neutral ion pairs (such as metal cation (M(+) + PCP(-1) = MPCP(o)) were considered. The observed sorption data were described over the entire pH range with knowledge of pH, soil organic carbon content, and PCP's pKa. Increased sorption of PCP(-1) was observed with increasing ionic strength for batch sorption studies conducted in aqueous CaCl2 solutions. Octanol-water partition coefficients measured in various electrolyte solutions suggested that formation of MPCP(o) and the partitioning of PCP(-1) are influenced by the cationic species. (Copyright (c) by the American Chemical Society, 1990.) |