Thermodynamics Research Center / ThermoML | International Journal of Thermophysics

Effect of Temperature on the Liquid Liquid Equilibrium of the Ternary Aqueous System Containing N-Butylpyridinium Tetrafluoroborate and Sodium Dihydrogen Phosphate

Li, Y.[Yuliang], Lu, X.[Xiaojia], Wu, J.[Jinna]
Int. J. Thermophys. 2016, 37, 2, 16
ABSTRACT
New experimental data of the binodal and tie lines for the ionic liquid N-butylpyridinium tetrafluoroborate + + sodium dihydrogen phosphate + + water system were measured at T = = 293.15 K, 298.15 K, 308.15 K, and 318.15 K. An empirical equation was used to correlate the binodal data, whereas a two-parameter model (the Setschenow-type equation) was employed for the tie-line data. The correlation coefficients showed that the experimental data were well fitted to both of the empirical equations. The temperature variation effect on the binodal curves and tie lines was also discussed, which indicates that a lower temperature corresponds to higher salting-out abilities.
Compounds
# Formula Name
1 C9H14BF4N 1-butylpyridinium tetrafluoroborate
2 H2O water
3 H2NaO4P sodium dihydrogen phosphate
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
  • 2
  • 1
  • Mass fraction - 1 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Mass fraction - 3; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • UV-vis spectrophotometer
  • 183
  • POMD
  • 3
  • 2
  • 1
  • Mass fraction - 3 ; Liquid mixture 2
  • Mass fraction - 3 ; Liquid mixture 1
  • Mass fraction - 1 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Mass fraction - 1; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • OTHER
  • OTHER
  • OTHER
  • 12