Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Liquid-liquid equilibria of 1-octyl-3-methylimidazolium hexafluorophosphate with 1-propanol or tert-butanol in the critical region

Cui, Z.[Zhencun], Guo, Y.[Yimin], Yin, T.[Tianxiang], Fan, D.[Dashuang], Zheng, P.[Peizhu], Shen, W.[Weiguo]
Fluid Phase Equilib. 2014, 365, 133-140
ABSTRACT
Coexistences curves of liquid-liquid phase transition were reported for the binary solutions of the room temperature ionic liquid (RTIL) 1-octyl-3-methylimidazolium hexafluorophosphate ([C8mim][PF6]) with 1-propanol or tert-butanol. The critical amplitude B and the critical exponent beta corresponding to the coexistence curve were deduced and the values of beta were found to be consistent with the 3D-Ising value. Asymmetry of the diameters for the coexistence curves were examined and discussed in the frame of the complete scaling theory.
Compounds
# Formula Name
1 C12H23F6N2P 1-octyl-3-methylimidazolium hexafluorophosphate
2 C3H8O propan-1-ol
3 C4H10O 2-methylpropan-2-ol
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
  • 1
  • Mole fraction - 1 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Index of refraction calibration data
  • 47
  • POMD
  • 2
  • 1
  • Mole fraction - 1 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • Index of refraction calibration data
  • 47
  • POMD
  • 2
  • 1
  • Refractive index (other wavelength) ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Wavelength, nm; Liquid
  • Liquid
  • minimum deviation angle technique
  • 85
  • POMD
  • 2
  • 1
  • Upper consolute temperature, K ; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Equal volume method
  • 1
  • POMD
  • 2
  • 1
  • Upper consolute composition: mole fraction - 1 ; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Equal volume method
  • 1
  • POMD
  • 3
  • 1
  • Mole fraction - 1 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Index of refraction calibration data
  • 43
  • POMD
  • 3
  • 1
  • Mole fraction - 1 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • Index of refraction calibration data
  • 43
  • POMD
  • 3
  • 1
  • Refractive index (other wavelength) ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Wavelength, nm; Liquid
  • Liquid
  • minimum deviation angle technique
  • 68
  • POMD
  • 3
  • 1
  • Upper consolute temperature, K ; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Equal volume method
  • 1
  • POMD
  • 3
  • 1
  • Upper consolute composition: mole fraction - 1 ; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Equal volume method
  • 1