Activity coefficients at infinite dilution and physicochemical properties for organic solutes and water in the ionic liquid 1-(2-methoxyethyl)-1-methylpiperidinium bis(trifluoromethylsulfonyl)-amide
- 作者：Andrzej Marciniak ; a.marciniak@ch.pw.edu.pl ; Micha艂 Wlaz艂o
- 关键词：Activity coefficient at infinite dilution ; Ionic liquid ; 1-(2-Methoxyethyl)-1-methylpiperidinium bis(trifluoromethylsulfonyl)-amide ; [COC2mPIP][NTf2] ; Selectivity ; Extraction ; LFER
- 刊名：Journal of Chemical Thermodynamics
- 出版年：2012
- 期刊代码：123_00219614
- 类别：ch
- 出版时间：June, 2012
- 卷：49
- 期：Complete
- 页码：137-145
- 文件大小：464 K
摘要
The activity coefficients at infinite dilution, and gas-liquid partition coefficients, KL for 61 solutes: alkanes, alkenes, alkynes, cycloalkanes, aromatic hydrocarbons, alcohols, thiophene, ethers, ketones, esters, 1-nitropropane, butanal, acetonitrile, and water in the ionic liquid 1-(2-methoxyethyl)-1-methylpiperidinium bis(trifluoromethylsulfonyl)-amide were determined by inverse gas chromatography at the temperatures from (318.15 to 368.15) K. The partial molar excess Gibbs free energies , enthalpies and entropies at infinite dilution were calculated from the experimental values obtained over the temperature range. The selectivities for selected compounds, which form azeotropic mixtures, were calculated from the and compared to the literature values for other ionic liquids based on bis(trifluoromethylsulfonyl)-amide anion.