Activity Coefficients of Organic Solutes at Infinite Dilution in the Ionic Liquids. 2. Organic Solutes in 1-Hexyl-3-methylimidazolium Nitrate and Gas-Liquid Partitioning and Interfacial Adsorption Using Gas-Liquid Chromatography

作者：Kan, Jiang; Wang, Li-Sheng^*; Wang, Xin-Xin; Duan, Jia-Dong

来源：Industrial & Engineering Chemistry Research, 2012, 51(38): 12479-12487.

DOI：10.1021/ie301591j

• 2ND VIRIAL-COEFFICIENTS
• THERMODYNAMIC PROPERTIES
• HYDROCARBONS
• MIXTURES
• RETENTION
• ALDEHYDES
• ALCOHOLS
• ESTERS

This paper reports activity coefficients at infinite dilution for a series of organic solutes in the ionic liquid 1-hexyl-3-methylirnidazolium nitrate by gas-liquid chromatography at different temperatures between 313.15 and 363.15 K. The contribution of gas-liquid partitioning and interfacial adsorption to the retention mechanism was estimated by changing the loading of ionic liquid in stationary phase, and the influence of different loading of ionic liquid on the experimental values of activity coefficients at infinite dilution was discussed. The partial molar excess enthalpies at infinite dilution and the solubility parameters of ionic liquid were also calculated from the experimental values of activity coefficients at infinite dilution.

• 出版日期2012-9-26
• 单位北京理工大学