Activity coefficients at infinite dilution of polar solutes in 1-propyl-2,3-dimethylimidazolium tetrafluoroborate using gas-liquid chromatography

作者:Ge Ming Lan; Wu Jun Sheng*; Wang Ming Hui; Wang Li Sheng
来源:Journal of Chemical and Engineering Data, 2008, 53(3): 871-873.
DOI:10.1021/je700640r

摘要

Activity coefficients at infinite dilution gamma(infinity)(i) of 17 polar solutes (linear and branched C-1 to C-5 alcohols, acetonitrile, acetone, 1,4-dioxane, tetrahydrofuran, ethyl acetate, and chloromethanes) in the ionic liquid 1-propyl-2,3-dimethylimidazolium tetrafluoroborate ([PDMIM] [BF4]) have been measured by the gas-liquid chromatographic method with the ionic liquid as the stationary phase. The measurements were carried out in the temperature range of (303.15 to 363.15) K. The partial molar excess enthalpies at infinite dilution H-i(E,infinity), of the solutes in the ionic liquid were also derived from the temperature dependence of the gamma(infinity)(i) values.