Partition coefficient correlations for transfer of solutes from gas phase and water to room temperature ionic liquids

Abstract

Gas-to-room temperature ionic liquid (RTIL) and water-to-RTIL partition coefficients have been calculated for a series of solutes from published experimental infinite dilution activity coefficient data. The calculated partition coefficients are correlated with the Abraham solvation parameter model. The derived correlations are able to describe the gas-to-RTIL partitioning behavior and infinite dilution activity coefficients of organic and gaseous solutes in 1-methyl-3-ethylimidazolium ethylsulfate and 1-butyl-3-methylimidazolium tetrafluoroborate to better than 0.11 log units.