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

Excess Molar Enthalpies of Binary Mixtures Containing 1-Methyl-3-octyl-imidazolium Tetrafluoroborate and Alcohols at T = 298.15 K

Fan, D.[Dashuang], Yin, H.[Handi], Cai, D.[Dongxing], Cui, Z.[Zhencun], Shen, W.[Weiguo]
J. Chem. Eng. Data 2014, 59, 3, 678-683
ABSTRACT
An isothermal titration calorimeter was used to measure the excess molar enthalpies (HE) at T = 298.15 K for five binary systems: 1-methyl-3-octyl-imidazolium tetrafluoroborate (OmimBF4) + alcohols (ethanol, 1-propanol, 2-propanol, 1-butanol, and 1-pentanol). The values of HE were found to be all positive for the five systems and were fitted with the Redlich Kister polynomial and the UNIQUAC mode. The magnitude order of HE for the five systems was explained by the balance between the magnitude orders of enthalpies of the alcohol/alcohol and the alcohol/OmimBF4 interactions.
Compounds
# Formula Name
1 C2H6O ethanol
2 C3H8O propan-1-ol
3 C3H8O propan-2-ol
4 C4H10O butan-1-ol
5 C5H12O pentan-1-ol
6 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
  • 6
  • Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid
  • Mole fraction - 6; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Calvet calorimetry
  • 78
  • POMD
  • 2
  • 6
  • Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid
  • Mole fraction - 6; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Calvet calorimetry
  • 88
  • POMD
  • 3
  • 6
  • Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid
  • Mole fraction - 6; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Calvet calorimetry
  • 87
  • POMD
  • 4
  • 6
  • Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid
  • Mole fraction - 6; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Calvet calorimetry
  • 72
  • POMD
  • 5
  • 6
  • Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid
  • Mole fraction - 6; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Calvet calorimetry
  • 79