Activity coefficients at infinite dilution measurements for organic solutes and water in the ionic liquid 1-butyl-1-methylpyrrolidinium trifluoromethanesulfonate using GLC

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• 作者：Urszula Domań ; ska ; Gan G. Redhi ; Andrzej Marciniak
• 关键词：Activity coefficients at infinite dilution ; Ionic liquid ; [BMPYR][CF₃SO₃]
• 刊名：Fluid Phase Equilibria
• 出版年：2009
• 出版时间：15 April 2009
• 年：2009
• 卷：278
• 期：1-2
• 页码：97-102
• 全文大小：380 K

文摘

Activity coefficients at infinite dilution, , for 32 organic compounds: alkanes, alk-1-enes, alk-1-ynes, cycloalkanes, aromatic hydrocarbons, alcohols, thiophene, tetrahydrofuran, tert-butyl methyl ether and water in the ionic liquid 1-butyl-1-methylpyrrolidinium trifluoromethanesulfonate [BMPYR][CF₃SO₃] were determined by gas–liquid chromatography at the temperatures ranging from 298.15 to 368.15 K. The partial molar excess enthalpies at infinite dilution were calculated from the experimental values obtained over the temperature range. The selectivities for the n-hexane/benzene, cyclohexane/benzene, n-hexane/thiophene, cyclohexane/thiophene, benzene/thiophene and hexen-1-ene/n-hexane separation problems were calculated from the and compared to the literature values for other ionic liquids, NMP and sulfolane.