Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Osmotic coefficients of aqueous solutions of four ionic liquids at T = (313.15 and 333.15) K

Gonzalez, B.[Begona], Calvar, N.[Noelia], Dominguez, A.[Angeles], Macedo, E. A.[Eugenia A.]
J. Chem. Thermodyn. 2008, 40, 9, 1346-1351
ABSTRACT
Measurements of osmotic coefficients of BmimCl (1-butyl-3-methylimidazolium chloride), HmimCl (1- hexyl-3-methylimidazolium chloride), MmimMeSO4 (1,3-dimethylimidazolium methylsulfate), and BmimMeSO4 (1-butyl-3-methylimidazolium methylsulfate) with water at T = (313.15 and 333.15) K are reported in this work. Vapour pressure and activity data of all the studied binary systems are obtained from experimental data. The osmotic coefficients data are correlated using the extended Pitzer model of Archer and the modified NRTL (MNRTL) model and standard deviations obtained with both models are given too. The parameters obtained with the extended Pitzer model of Archer are used to calculate the mean molal activity coefficients.
Compounds
# Formula Name
1 C8H15ClN2 1-butyl-3-methylimidazolium chloride
2 C10H19ClN2 1-hexyl-3-methylimidazolium chloride
3 C6H12N2O4S 1,3-dimethylimidazolium methylsulfate
4 C9H18N2O4S 1-butyl-3-methylimidazolium methyl sulfate
5 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
  • 5
  • 1
  • Osmotic coefficient ; Liquid
  • Temperature, K; Liquid
  • Molality, mol/kg - 1; Liquid
  • Liquid
  • Gas
  • Knauer K-7000 vapour pressure osmometer (VPO)
  • 28
  • POMD
  • 5
  • 2
  • Osmotic coefficient ; Liquid
  • Temperature, K; Liquid
  • Molality, mol/kg - 2; Liquid
  • Liquid
  • Gas
  • Knauer K-7000 vapour pressure osmometer (VPO)
  • 34
  • POMD
  • 5
  • 3
  • Osmotic coefficient ; Liquid
  • Temperature, K; Liquid
  • Molality, mol/kg - 3; Liquid
  • Liquid
  • Gas
  • Knauer K-7000 vapour pressure osmometer (VPO)
  • 30
  • POMD
  • 5
  • 4
  • Osmotic coefficient ; Liquid
  • Temperature, K; Liquid
  • Molality, mol/kg - 4; Liquid
  • Liquid
  • Gas
  • Knauer K-7000 vapour pressure osmometer (VPO)
  • 30