Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

(Liquid + liquid) equilibrium for the ternary systems {heptane + toluene + 1-allyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide} and {heptane + toluene + 1-methyl-3-propylimidazolium bis(trifluoromethylsulfonyl)imide} ionic liquids

Garcia, S.[Silvia], Larriba, M.[Marcos], Garcia, J.[Julian], Torrecilla, J. S.[Jose S.], Rodriguez, F.[Francisco]
J. Chem. Thermodyn. 2011, 43, 11, 1641-1645
ABSTRACT
The (liquid + liquid) equilibrium (LLE) data for two systems containing heptane, toluene, and 1-methyl-3- propylimidazolium bis(trifluoromethylsulfonyl)imide ([mpim][Tf2N]) or 1-allyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([amim][Tf2N]) ionic liquids (ILs) were determined at T = 313.2 K and atmospheric pressure. The effect of a double bond in an alkyl side chain in the imidazolium cation was evaluated in terms of selectivity and extractive capacity. The results show a decrease of the amount of toluene and heptane dissolved in the IL with the allyl group. Thus, the distribution ratios of toluene and heptane of [mpim][Tf2N] IL are higher than those of [amim][Tf2N] IL. On the other hand, the separation factor of the [amim][Tf2N] IL increases comparing to [mpim][Tf2N] IL. The NRTL model was used to correlate satisfactorily the experimental LLE data for the two studied ternary systems.
Compounds
# Formula Name
1 C9H13F6N3O4S2 1-methyl-3-propylimidazolium bis[(trifluoromethyl)sulfonyl]imide
2 C9H11F6N3O4S2 1-allyl-3-methyl-1H-imidazolium bis((trifluoromethyl)sulfonyl)amide
3 C7H16 heptane
4 C7H8 toluene
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
  • 3
  • 2
  • Mole fraction - 3 ; Liquid mixture 1
  • Mole fraction - 3 ; Liquid mixture 2
  • Mole fraction - 4 ; Liquid mixture 2
  • Mole fraction - 4; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • Chromatography
  • Chromatography
  • Chromatography
  • 12
  • POMD
  • 4
  • 3
  • 1
  • Mole fraction - 3 ; Liquid mixture 1
  • Mole fraction - 3 ; Liquid mixture 2
  • Mole fraction - 4 ; Liquid mixture 2
  • Mole fraction - 4; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • Chromatography
  • Chromatography
  • Chromatography
  • 12