Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Mutual Solubility of Alkyl Imidazolium Hexafluorophosphate Ionic Liquids and Water

Li, Y.[Yi], Wang, L. -S.[Li-Sheng], Cai, S.-F.[Shuang-Fei]
J. Chem. Eng. Data 2010, 55, 11, 5289-5293
ABSTRACT
Mutual solubilities of water and the ionic liquids (ILs) 1-butyl-3-methylimidazolium hexafluorophosphate, 1-hexyl-3-methylimidazolium hexafluorophosphate, and 1-octyl-3-methylimidazolium hexafluorophosphate were measured between (278.15 and 364.15) K at atmospheric pressure. The temperature dependence of the solubilities of ILs in water and water in ILs have calculated from experimental data. The proposed correlations showed a relative maximum deviation from the experimental mole fraction data of 4.7 %. The liquid-liquid equilibrium data were correlated by the nonrandom two-liquid (NRTL) equation, and the average root-mean-square deviation of the mole fractions for the three ionic liquid + water mixtures is 0.0025.
Compounds
# Formula Name
1 C8H15F6N2P 1-butyl-3-methylimidazolium hexafluorophosphate
2 C10H19F6N2P 1-hexyl-3-methylimidazolium hexafluorophosphate
3 C12H23F6N2P 1-octyl-3-methylimidazolium hexafluorophosphate
4 H2O water
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
  • 4
  • 1
  • Mole fraction - 4 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • TITR:UFactor:4
  • 16
  • POMD
  • 4
  • 1
  • Mole fraction - 1 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • TITR:UFactor:4
  • 15
  • POMD
  • 4
  • 2
  • Mole fraction - 4 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • TITR:UFactor:4
  • 16
  • POMD
  • 4
  • 2
  • Mole fraction - 2 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • TITR:UFactor:4
  • 15
  • POMD
  • 4
  • 3
  • Mole fraction - 4 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • TITR:UFactor:4
  • 16
  • POMD
  • 4
  • 3
  • Mole fraction - 3 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • TITR:UFactor:4
  • 15