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  Global Journal of Physical Chemistry 2012, 3: 9
  Research Article Free Article
 
Correlation of solute partitioning into isooctane from water and from the gas phase based on updated Abraham equations
  Timothy W. Stephensa, Anastasia Wilsona, Nishu Dabadgea, Amy Tiana, Hali J. Hensleya, Malcolm Zimmermana, William E. Acree. Jr.a, Michael H. Abrahamb  
     
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

   
  Abstract  
  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.
     
  Keywords  
  Partition coefficients; Infinite dilution activity coefficients; Isooctane; Abraham model correlations  
     
   
   
   
   
     

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