Thermodynamic Properties of Mixtures Containing Ionic Liquids. 8. Activity Coefficients at Infinite Dilution of Hydrocarbons, Alcohols, Esters, and Aldehydes in 1-Hexyl-3-methylimidazolium Bis(trifluoromethylsulfonyl) Imide Using Gas−Liquid Chromatography

• Published in: Journal of chemical and engineering data Vol. 51; no. 2; pp. 434 - 437
• Main Authors: Heintz, Andreas, Verevkin, Sergey P, Ondo, Daniel
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 01.03.2006
• Subjects: Analytical chemistry; Chemistry; Chromatographic methods and physical methods associated with chromatography; Exact sciences and technology; Gas chromatographic methods; General and physical chemistry; Phase equilibria; Ester; Infinite dilution; Hydrocarbon; Activity coefficient; Alcohol; Aldehyde; Gas liquid chromatography; Thermodynamic properties; Phase equilibrium; Mixture; Ionic liquid
• ISSN: 0021-9568; 1520-5134
• DOI: 10.1021/je0503554

Activity coefficients at infinite dilution of alkanes, alkenes, and alkylbenzenes as well as of the linear and branched C1−C6 alcohols, esters, and aldehydes in the ionic liquids 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide have been determined by gas chromatography using the ionic liquids as stationary phase. The measurements were carried out at different temperatures between 301 K and 396 K. From the temperature dependence of the limiting activity coefficients, partial molar excess enthalpies at infinite dilution of the solutes in the ionic liquids have been derived.