Measurements of activity coefficients at infinite dilution in solvent mixtures with thiocyanate-based ionic liquids using GLC technique.
作者： Urszula Domańska , Marta Królikowska
DOI: 10.1021/JP103496D
关键词:
摘要: The activity coefficients at infinite dilution, γ13∞ for 34 solutes—alkanes, cycloalkanes, alkenes, alkynes, aromatic hydrocarbons, alcohols, water, thiophene, ethers, and ketones—in the ionic liquid 1-butyl-4-methylpyridinium thiocyanate, [BMPy][SCN], in 1-butyl-1-methylpyrrolidinium [BMPYR][SCN], were determined by gas−liquid chromatography temperature range from 298.15 to 368.15 K. partial molar excess enthalpies dilution values, ΔH1E,∞, calculated experimental values obtained over range. selectivities n-heptane/benzene, cyclohexane/benzene, n-heptane/thiophene separation problems γ13∞. Obtained compared literature other liquids, NMP, sulfolane.
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