Activity coefficients at infinite dilution and physicochemical properties for organic solutes and water in the ionic liquid 1-(2-methoxyethyl)-1- methylpyrrolidinium trifluorotris(perfluoroethyl)phosphate

Andrzej Marciniak , Michał Wlazło


This work presents new data of activity coefficients at infinite dilution, γ∞ of different organic solutes and water in the 1-(2-methoxyethyl)-1-methylpyrrolidinium trifluorotris(perfluoroethyl)phosphate ionic liquid. Values of γ∞ were determined for 62 solutes, including alkanes, alkenes, alkynes, cycloalkanes, aromatic hydrocarbons, alcohols, thiophene, ethers, ketones, esters, 1-nitropropane, butanal, acetonitrile and water by inverse gas chromatography over the temperature range from (318.15 to 368.15) K. The basic thermodynamic functions, namely partial molar excess Gibbs energies, View the MathML sourceΔG1E,∞, enthalpies, View the MathML sourceΔH1E,∞ and entropies, View the MathML sourceΔS1E,∞ at infinite dilution were calculated from the experimental γ∞ values obtained over the temperature range. Additionally the gas–liquid partition coefficients, KL were determined. Experimental values of gas–liquid partition coefficients were used to determine the coefficients in the Abraham solvation parameter model (LFER). Results are compared to previously investigated ionic liquids with the same cations or anions. The selectivities and capacities at infinite dilution for alkanes/thiophene extraction problems were calculated from experimental γ∞ values to verify the possibility of investigated ionic liquid as an entrainer in liquid–liquid extraction.
Author Andrzej Marciniak (FC / DPC)
Andrzej Marciniak,,
- Department Of Physical Chemistry
, Michał Wlazło (FC / DPC)
Michał Wlazło,,
- Department Of Physical Chemistry
Journal seriesJournal of Chemical Thermodynamics, ISSN 0021-9614
Issue year2013
Publication size in sheets0.5
Keywords in EnglishActivity coefficient at infinite dilution; Ionic liquid; 1-(2-Methoxyethyl)-1-methylpyrrolidinium trifluorotris(perfluoroethyl)phosphate; [COC2mPYR][FAP]; Selectivity; Thiophene extraction; LFER
ASJC Classification1606 Physical and Theoretical Chemistry; 2500 General Materials Science; 3107 Atomic and Molecular Physics, and Optics
Internal identifier4899
Languageen angielski
1-s2.0-S0021961413000268-main.pdf 306.7 KB
Score (nominal)35
Score sourcejournalList
ScoreMinisterial score = 30.0, 01-02-2020, ArticleFromJournal
Ministerial score (2013-2016) = 35.0, 01-02-2020, ArticleFromJournal
Publication indicators WoS Citations = 17; Scopus Citations = 19; Scopus SNIP (Source Normalised Impact per Paper): 2013 = 1.234; WoS Impact Factor: 2013 = 2.423 (2) - 2013=2.399 (5)
Citation count*36 (2020-09-10)
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