Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Liquid densities and excess molar volumes for (ionic liquids + methanol + water) ternary system at atmospheric pressure and at various temperatures

Deenadayalu, N.[Nirmala], Kumar, S.[Satish], Bhujrajh, P.
J. Chem. Thermodyn. 2007, 39, 9, 1318-1324
ABSTRACT
Excess molar volumes, V E m have been evaluated from density measurements over the entire composition range for ternary liquid system of ionic liquid (1-ethyl-3-methyl-imidazolium diethylenglycol monomethylether sulphate {[EMIM][CH3(OCH2CH2)2OSO3]) (1) + methanol (2) + water (3)} at T = (298.15, 303.15, and 313.15) K. A vibrating tube densimeter was used for these measurements at atmospheric pressure. The V E m values were found to be negative at T = (298.15 and 303.15) K. For {[EMIM][CH3(OCH2CH2)2OSO3] (1) + methanol (2) + water (3)} at T = 313.15 K the V E m values become positive at higher mole fraction of ionic liquid and at a corresponding decrease in mole fraction of water. All the experimental data were fitted with the Redlich Kister equation. The results have also been analysed in term of graph theoretical approach.
Compounds
# Formula Name
1 H2O water
2 CH4O methanol
3 C11H22N2O6S 1-ethyl-3-methylimidazolium 2-(2-methoxyethoxy) 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
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB:UFactor:8
  • 3
  • POMD
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB:UFactor:8
  • 3
  • POMD
  • 2
  • 1
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 3; Liquid
  • Mole fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB:UFactor:8
  • 39