Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Heat capacities of the mixtures of ionic liquids with methanol at temperatures from 283.15 K to 323.15 K

Waliszewski, D.[Dariusz]
J. Chem. Thermodyn. 2008, 40, 2, 203-207
ABSTRACT
The molar isobaric heat capacities of (methanol + 1-hexyl-3-methylimidazolium tetrafluoroborate) and (methanol + 1-methyl-3-octylimidazolium tetrafluoroborate) mixtures have been determined over the temperature range from 283.15 K to 323.15 K within the whole composition range. The excess molar heat capacities of investigated mixtures have been fitted to the Redlich Kister equation at several selected temperatures. Positive deviations from the additivity of molar heat capacities have been observed in both examined systems. The results obtained have been discussed in terms of molecular interactions in binary mixtures.
Compounds
# Formula Name
1 CH4O methanol
2 C10H19BF4N2 1-hexyl-3-methylimidazolium tetrafluoroborate
3 C12H23BF4N2 1-methyl-3-octylimidazolium tetrafluoroborate
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
  • Molar heat capacity at constant pressure, J/K/mol ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Large sample (1 g) DSC
  • 9
  • POMD
  • 2
  • Molar heat capacity at constant pressure, J/K/mol ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Large sample (1 g) DSC
  • 9
  • POMD
  • 3
  • Molar heat capacity at constant pressure, J/K/mol ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Large sample (1 g) DSC
  • 9
  • POMD
  • 1
  • 2
  • Molar heat capacity at constant pressure, J/K/mol ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Large sample (1 g) DSC
  • 72
  • POMD
  • 1
  • 3
  • Molar heat capacity at constant pressure, J/K/mol ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 3; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Large sample (1 g) DSC
  • 72