Measurement of activity coefficients at infinite dilution using polar and non-polar solutes in the ionic liquid 1-methyl-3-octyl-imidazolium diethyleneglycolmonomethylethersulfate at T = (288.15, 298.15, and 313.15) K

摘要

In this work, the activity coefficients at infinite dilution (gamma(infinity)(13)) for 14 solutes: alkanes, alkenes, an alkyne, cycloalkanes, benzene, and methanol in the ionic liquid 1-methyl-3-octyl-imidazolium diethyleneglycolmonomethylethersulfate were determined by gas + liquid chromatography at the temperatures (288.15, 298.15, and 313.15) K. The ionic liquid had a mass percentage packing greater than 20%. Two columns with different mass percent packing of the ionic liquid were studied at each temperature.