Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Interfacial tensions of imidazolium-based ionic liquids with water and n-alkanes

Gardas, R. L.[Ramesh L.], Ge, R.[Rile], Manan, N. A.[Norfaizah Ab], Rooney, D. W.[David W.], Hardacre, C.[Christopher]
Fluid Phase Equilib. 2010, 294, 1-2, 139-147
ABSTRACT
The interfacial tension of the liquid liquid phase boundary of several 1,3-dialkyl imidazolium based ionic liquids, namely, 1,3-dimethylimidazolium bis{(trifluoromethyl)sulfonyl}imide [C1mim][NTf2], 1-ethyl-3-methylimidazolium bis{(trifluoromethyl)sulfonyl}imide [C2mim][NTf2], 1-butyl-3-methylimidazolium bis{(trifluoromethyl)sulfonyl}imide [C4mim][NTf2], 1-hexyl-3-methylimidazolium bis{(trifluoromethyl)sulfonyl}imide [C6mim][NTf2], 1-octyl-3-methylimidazolium bis{(trifluoromethyl)sulfonyl}imide [C8mim][NTf2], 1-butyl-3-methylimidazolium trifluoromethylsulfonate [C4mim][CF3SO3], and 1-butyl-3-methylimidazolium trifluoroacetate [C4mim][CF3COO] with water and with the n-alkanes, n-hexane, n-octane and n-decane, has been measured using the pendant drop method as a function of temperature from 293 to 323 K. The experimental interfacial tension data were correlated using the ionic liquid parachor estimation method and a mutual solubility model. The influence of the cation and anion of ionic liquids and also of alkyl chain length of n-alkanes on interfacial tension is discussed. It has also been demonstrated that the interfacial tension data estimated by the correlation methods are in good agreement with the experimental data.
Compounds
# Formula Name
1 C7H9F6N3O4S2 1,3-dimethylimidazolium bis((trifluoromethyl)sulfonyl)amide
2 C8H11F6N3O4S2 1-ethyl-3-methylimidazolium bis((trifluoromethyl)sulfonyl)imide
3 C10H15F6N3O4S2 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide
4 C12H19F6N3O4S2 1-hexyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide
5 C14H23F6N3O4S2 1-octyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide
6 C9H15F3N2O3S 1-butyl-3-methylimidazolium trifluoromethanesulfonate
7 C10H15F3N2O2 1-butyl-3-methylimidazolium trifluoroacetate
8 H2O water
9 C6H14 hexane
10 C8H18 octane
11 C10H22 decane
12 C16H27F6N3O4S2 1-decyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 9
  • 2
  • Interfacial tension, N/m ; Liquid - 2
  • Temperature, K; Liquid - 2
  • Pressure, kPa; Liquid - 2
  • Liquid - 2
  • Liquid - 9
  • Pendant drop method
  • 5
  • POMD
  • 9
  • 2
  • Mole fraction - 9 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • NMR
  • 1
  • POMD
  • 9
  • 3
  • Interfacial tension, N/m ; Liquid - 3
  • Temperature, K; Liquid - 3
  • Pressure, kPa; Liquid - 3
  • Liquid - 3
  • Liquid - 9
  • Pendant drop method
  • 5
  • POMD
  • 9
  • 3
  • Mole fraction - 9 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • NMR
  • 1
  • POMD
  • 9
  • 4
  • Interfacial tension, N/m ; Liquid - 4
  • Temperature, K; Liquid - 4
  • Pressure, kPa; Liquid - 4
  • Liquid - 4
  • Liquid - 9
  • Pendant drop method
  • 5
  • POMD
  • 9
  • 4
  • Mole fraction - 9 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • NMR
  • 1
  • POMD
  • 9
  • 5
  • Interfacial tension, N/m ; Liquid - 5
  • Temperature, K; Liquid - 5
  • Pressure, kPa; Liquid - 5
  • Liquid - 5
  • Liquid - 9
  • Pendant drop method
  • 5
  • POMD
  • 9
  • 5
  • Mole fraction - 9 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • NMR
  • 1
  • POMD
  • 9
  • 6
  • Interfacial tension, N/m ; Liquid - 6
  • Temperature, K; Liquid - 6
  • Pressure, kPa; Liquid - 6
  • Liquid - 6
  • Liquid - 9
  • Pendant drop method
  • 5
  • POMD
  • 9
  • 7
  • Interfacial tension, N/m ; Liquid - 7
  • Temperature, K; Liquid - 7
  • Pressure, kPa; Liquid - 7
  • Liquid - 7
  • Liquid - 9
  • Pendant drop method
  • 5
  • POMD
  • 10
  • 2
  • Interfacial tension, N/m ; Liquid - 2
  • Temperature, K; Liquid - 2
  • Pressure, kPa; Liquid - 2
  • Liquid - 2
  • Liquid - 10
  • Pendant drop method
  • 5
  • POMD
  • 10
  • 2
  • Mole fraction - 10 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • NMR
  • 1
  • POMD
  • 10
  • 3
  • Interfacial tension, N/m ; Liquid - 3
  • Temperature, K; Liquid - 3
  • Pressure, kPa; Liquid - 3
  • Liquid - 3
  • Liquid - 10
  • Pendant drop method
  • 5
  • POMD
  • 10
  • 3
  • Mole fraction - 10 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • NMR
  • 1
  • POMD
  • 10
  • 4
  • Interfacial tension, N/m ; Liquid - 4
  • Temperature, K; Liquid - 4
  • Pressure, kPa; Liquid - 4
  • Liquid - 4
  • Liquid - 10
  • Pendant drop method
  • 5
  • POMD
  • 10
  • 4
  • Mole fraction - 10 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • NMR
  • 1
  • POMD
  • 10
  • 5
  • Interfacial tension, N/m ; Liquid - 5
  • Temperature, K; Liquid - 5
  • Pressure, kPa; Liquid - 5
  • Liquid - 5
  • Liquid - 10
  • Pendant drop method
  • 5
  • POMD
  • 10
  • 5
  • Mole fraction - 10 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • NMR
  • 1
  • POMD
  • 10
  • 6
  • Interfacial tension, N/m ; Liquid - 6
  • Temperature, K; Liquid - 6
  • Pressure, kPa; Liquid - 6
  • Liquid - 6
  • Liquid - 10
  • Pendant drop method
  • 5
  • POMD
  • 10
  • 7
  • Interfacial tension, N/m ; Liquid - 7
  • Temperature, K; Liquid - 7
  • Pressure, kPa; Liquid - 7
  • Liquid - 7
  • Liquid - 10
  • Pendant drop method
  • 5
  • POMD
  • 11
  • 2
  • Interfacial tension, N/m ; Liquid - 2
  • Temperature, K; Liquid - 2
  • Pressure, kPa; Liquid - 2
  • Liquid - 2
  • Liquid - 11
  • Pendant drop method
  • 5
  • POMD
  • 11
  • 2
  • Mole fraction - 11 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • NMR
  • 1
  • POMD
  • 11
  • 3
  • Interfacial tension, N/m ; Liquid - 3
  • Temperature, K; Liquid - 3
  • Pressure, kPa; Liquid - 3
  • Liquid - 3
  • Liquid - 11
  • Pendant drop method
  • 5
  • POMD
  • 11
  • 3
  • Mole fraction - 11 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • NMR
  • 1
  • POMD
  • 11
  • 4
  • Interfacial tension, N/m ; Liquid - 4
  • Temperature, K; Liquid - 4
  • Pressure, kPa; Liquid - 4
  • Liquid - 4
  • Liquid - 11
  • Pendant drop method
  • 5
  • POMD
  • 11
  • 4
  • Mole fraction - 11 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • NMR
  • 1
  • POMD
  • 11
  • 5
  • Interfacial tension, N/m ; Liquid - 5
  • Temperature, K; Liquid - 5
  • Pressure, kPa; Liquid - 5
  • Liquid - 5
  • Liquid - 11
  • Pendant drop method
  • 5
  • POMD
  • 11
  • 5
  • Mole fraction - 11 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • NMR
  • 1
  • POMD
  • 11
  • 6
  • Interfacial tension, N/m ; Liquid - 6
  • Temperature, K; Liquid - 6
  • Pressure, kPa; Liquid - 6
  • Liquid - 6
  • Liquid - 11
  • Pendant drop method
  • 5
  • POMD
  • 11
  • 7
  • Interfacial tension, N/m ; Liquid - 7
  • Temperature, K; Liquid - 7
  • Pressure, kPa; Liquid - 7
  • Liquid - 7
  • Liquid - 11
  • Pendant drop method
  • 5
  • POMD
  • 8
  • 1
  • Interfacial tension, N/m ; Liquid - 1
  • Temperature, K; Liquid - 1
  • Pressure, kPa; Liquid - 1
  • Liquid - 1
  • Liquid - 8
  • Pendant drop method
  • 6
  • POMD
  • 8
  • 1
  • Mole fraction - 8 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • NMR
  • 6
  • POMD
  • 8
  • 1
  • Mole fraction - 1 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • NMR
  • 6
  • POMD
  • 8
  • 2
  • Interfacial tension, N/m ; Liquid - 2
  • Temperature, K; Liquid - 2
  • Pressure, kPa; Liquid - 2
  • Liquid - 2
  • Liquid - 8
  • Pendant drop method
  • 7
  • POMD
  • 8
  • 3
  • Interfacial tension, N/m ; Liquid - 3
  • Temperature, K; Liquid - 3
  • Pressure, kPa; Liquid - 3
  • Liquid - 3
  • Liquid - 8
  • Pendant drop method
  • 7
  • POMD
  • 8
  • 4
  • Interfacial tension, N/m ; Liquid - 4
  • Temperature, K; Liquid - 4
  • Pressure, kPa; Liquid - 4
  • Liquid - 4
  • Liquid - 8
  • Pendant drop method
  • 7
  • POMD
  • 8
  • 5
  • Interfacial tension, N/m ; Liquid - 5
  • Temperature, K; Liquid - 5
  • Pressure, kPa; Liquid - 5
  • Liquid - 5
  • Liquid - 8
  • Pendant drop method
  • 7
  • POMD
  • 8
  • 12
  • Interfacial tension, N/m ; Liquid - 12
  • Temperature, K; Liquid - 12
  • Pressure, kPa; Liquid - 12
  • Liquid - 12
  • Liquid - 8
  • Pendant drop method
  • 7
  • POMD
  • 8
  • 12
  • Mole fraction - 8 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • NMR
  • 7