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Global Journal of Physical Chemistry 2012, 3: 9
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Research Article
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Free Article
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Correlation of solute partitioning into isooctane from water and from the gas phase based on updated Abraham equations
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Timothy W. Stephensa, Anastasia Wilsona, Nishu Dabadgea, Amy Tiana, Hali J. Hensleya, Malcolm Zimmermana, William E. Acree. Jr.a, Michael H. Abrahamb
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a Department of Chemistry, 1155 Union Circle # 305070, University of North Texas, Denton, TX 76203-5017, USA
b Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
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Abstract |
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Experimental data have been compiled from the published literature on the partition coefficients of solutes and vapors into isooctane at 298 K. The logarithms of the water-to-isooctane partition coefficients, log P, and gas-to-isooctane partition coefficients, log K, were correlated with the Abraham solvation parameter model. The derived mathematical expressions described the observed log P and log K data to within average deviations of 0.13 log units or less, which corresponds to a percent deviation between the calculated and observed partition coefficient of approximately 30% or less.
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Keywords |
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Partition coefficients; Infinite dilution activity coefficients; Isooctane; Abraham model correlations
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