Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Osmotic coefficients of binary mixtures of four ionic liquids with ethanol or water at T = (313.15 and 333.15) K

Calvar, N.[Noelia], Gonzalez, B.[Begona], Dominguez, A.[Angeles], Macedo, E. A.[Eugenia A.]
J. Chem. Thermodyn. 2009, 41, 1, 11-16
ABSTRACT
Measurements of osmotic coefficients of BmimCl (1-butyl-3-methylimidazolium chloride) and HmimCl (1-hexyl-3-methylimidazolium chloride) with ethanol and EmimEtSO4 (1-ethyl-3-methylimidazolium ethylsulfate) and EmpyEtSO4 (1-ethyl-3-methylpyridinium ethylsulfate) with water at T = (313.15 and 333.15) K are reported in this work. Vapour pressure and activity results of the studied binary systems are obtained from experimental measurements. The results for the osmotic coefficients are correlated using the extended Pitzer model modified by Archer and the modified NRTL (MNRTL) model. The standard deviations obtained with both models are also given. The parameters obtained with the extended Pitzer model of Archer are used to calculate the mean molal activity coefficients.
Compounds
# Formula Name
1 C2H6O ethanol
2 C10H19ClN2 1-hexyl-3-methylimidazolium chloride
3 H2O water
4 C6H11ClN2 1-ethyl-3-methylimidazolium chloride
5 C8H15ClN2 1-butyl-3-methylimidazolium chloride
6 C10H17NO4S 1-ethyl-3-methylpyridinium ethylsulfate
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
  • 2
  • Osmotic coefficient ; Liquid
  • Temperature, K; Liquid
  • Molality, mol/kg - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Knauer K-7000 vapour pressure osmometer
  • 24
  • POMD
  • 3
  • 4
  • Osmotic coefficient ; Liquid
  • Temperature, K; Liquid
  • Molality, mol/kg - 4; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Knauer K-7000 vapour pressure osmometer
  • 28
  • POMD
  • 1
  • 5
  • Osmotic coefficient ; Liquid
  • Temperature, K; Liquid
  • Molality, mol/kg - 5; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Knauer K-7000 vapour pressure osmometer
  • 24
  • POMD
  • 3
  • 6
  • Osmotic coefficient ; Liquid
  • Temperature, K; Liquid
  • Molality, mol/kg - 6; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Knauer K-7000 vapour pressure osmometer
  • 26