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

Liquid-Liquid Equilibria of the System 1-(2-Hydroxyethyl)-3-methylimidozolium Tetrafluoroborate or 1-(2-Hydroxyethyl)-2,3-dimethylimidozolium Tetrafluoroborate + Water + 1-Butanol at 293.15 K

Hu, X.[Xuesheng], Yu, J.[Jiang], Liu, H.[Huizhou]
J. Chem. Eng. Data 2006, 51, 2, 691-695
ABSTRACT
Liquid-liquid equilibrium data are presented for mixtures of 1-(2-hydroxyethyl)-3-methylimidazolium tetrafluoroborate ([C2OHmim]BF4) or 1-(2-hydroxyethyl)-2,3-dimethylimidazolium tetrafluoroborate ([C2OHdmim]BF4) + water + 1-butanol at 293.15 K. The data presented provide valuable insight into how the environmentally friendly ionic liquid solvent can be used to separate 1-butanol and water. Selectivity values, derived from the tie line data, show that [C2OHdmim]BF4 has better extraction capacity than [C2OHmim]BF4. The experimental results show that the two ionic liquids are potentially candidates to separate 1-butanol and water by liquid-liquid extraction. The experimental tie lines were correlated with the NTRL equation.
Compounds
# Formula Name
1 C4H10O butan-1-ol
2 H2O water
3 C6H11BF4N2O 1-(2-hydroxyethyl)-3-methylimidazolium tetrafluoroborate
4 C7H13BF4N2O 1-(2-hydroxyethyl)-2,3-dimethylimidazolium 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
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 4
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 1
  • POMD
  • 1
  • 2
  • 4
  • Mole fraction - 4 ; Liquid mixture 2
  • Mole fraction - 4 ; Liquid mixture 1
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • OTHER
  • OTHER
  • OTHER
  • 10
  • POMD
  • 1
  • 2
  • 3
  • Mole fraction - 3 ; Liquid mixture 2
  • Mole fraction - 3 ; Liquid mixture 1
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • UV Spectra
  • UV Spectra
  • UV Spectra
  • 9