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

Liquid-liquid equilibria of water + ethanol + 1-butyl-3- methylimidazolium bis(trifluoromethanesulfonyl)imide ternary system: measurements and correlation at different temperatures

Chafer, A.[Amparo], de la Torre, J.[Javier], Font, A.[Alicia], Lladosa, E.[Estela]
J. Chem. Eng. Data 2015, 60, 8, 2426-2433
ABSTRACT
In this work authors present the experimental liquid liquid equilibria (LLE) data of water + ethanol + 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ([bmim][Tf2N]) system at different temperatures. The LLE of the system was obtained in the temperature range from 283.2 to 323.2 K. The nonrandom two liquid (NRTL) and universal quasichemical (UNIQUAC) models were used to correlate ternary systems. The equilibrium compositions were successfully correlated by the interaction parameters from both models, however UNIQUAC gave a more accurate correlation. Finally, a study about the solvent capability of ionic liquid was made in order to evaluate the possibility of separating the mixture formed by ethanol and water using that ionic liquid.
Compounds
# Formula Name
1 H2O water
2 C2H6O ethanol
3 C10H15F6N3O4S2 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide
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
  • 1
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 2
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 3
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 2
  • 1
  • 3
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 1 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Mole fraction - 1; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • OTHER
  • OTHER
  • OTHER
  • 31
  • POMD
  • 1
  • 3
  • Mole fraction - 1 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • OTHER
  • 3
  • POMD
  • 1
  • 3
  • Mole fraction - 1 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • OTHER
  • 3