Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Liquid phase behavior of hexafluorophosphate ionic liquids with polyhydric alcohols

Makowska, A.[Anna], Sztank, E.[Ewa], Szydlowski, J.[Jerzy]
Fluid Phase Equilib. 2012, 314, 140-145
ABSTRACT
Liquid-liquid equilibria for hexafluorophosphate ionic liquids with 1-alkyl-3-methylimidazolium family of cations: 1-butyl-3-methylimidazolium, [bmim]+, 1-hexyl-3-methylimidazolium, [hmim]+, 1-octyl-3-methylimidazolium, [omim]+ with polyhydric alcohols: 1,2-ethanediol, 1,2-propanediol, 1,2-butanediol, 1,2-pentanediol, 1,2-hexanediol, 1,3-propanediol, 1,3-butanediol, 1,4-butanediol, 2,3-butanediol, 1,5-pentanediol have been measured using the cloud point method. The influence of different characteristics of alcohols and ILs, including cation alkyl chain length, alcohol chain length, and relative position of the both OH groups in alcohol were studied. In general, the same type of the phase behavior is observed in all cases showing upper critical solution temperature but the impact of the above-mentioned factors is highly diversified.
Compounds
# Formula Name
1 C8H15F6N2P 1-butyl-3-methylimidazolium hexafluorophosphate
2 C10H19F6N2P 1-hexyl-3-methylimidazolium hexafluorophosphate
3 C12H23F6N2P 1-octyl-3-methylimidazolium hexafluorophosphate
4 C2H6O2 1,2-ethanediol
5 C3H8O2 1,2-propanediol
6 C3H8O2 propan-1,3-diol
7 C4H10O2 1,2-butanediol
8 C5H12O2 1,2-pentanediol
9 C4H10O2 1,3-butanediol
10 C4H10O2 1,4-butanediol
11 C4H10O2 2,3-butanediol
12 C5H12O2 1,5-pentanediol
13 C6H14O2 1,2-hexanediol
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
  • 4
  • 3
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Laser detection of cloud point temperature
  • 17
  • POMD
  • 4
  • 3
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • fit of experimental data
  • 1
  • POMD
  • 5
  • 3
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Laser detection of cloud point temperature
  • 17
  • POMD
  • 5
  • 3
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • fit of experimental data
  • 1
  • POMD
  • 6
  • 3
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Laser detection of cloud point temperature
  • 17
  • POMD
  • 6
  • 3
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • fit of experimental data
  • 1
  • POMD
  • 7
  • 3
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Laser detection of cloud point temperature
  • 20
  • POMD
  • 7
  • 3
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • fit of experimental data
  • 1
  • POMD
  • 9
  • 3
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Laser detection of cloud point temperature
  • 19
  • POMD
  • 9
  • 3
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • fit of experimental data
  • 1
  • POMD
  • 10
  • 3
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Laser detection of cloud point temperature
  • 21
  • POMD
  • 10
  • 3
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • fit of experimental data
  • 1
  • POMD
  • 11
  • 3
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Laser detection of cloud point temperature
  • 19
  • POMD
  • 11
  • 3
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • fit of experimental data
  • 1
  • POMD
  • 8
  • 3
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Laser detection of cloud point temperature
  • 17
  • POMD
  • 8
  • 3
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • fit of experimental data
  • 1
  • POMD
  • 12
  • 3
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Laser detection of cloud point temperature
  • 13
  • POMD
  • 12
  • 3
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • fit of experimental data
  • 1
  • POMD
  • 13
  • 2
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Laser detection of cloud point temperature
  • 15
  • POMD
  • 13
  • 2
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • fit of experimental data
  • 1
  • POMD
  • 4
  • 2
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Laser detection of cloud point temperature
  • 17
  • POMD
  • 4
  • 2
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • fit of experimental data
  • 1
  • POMD
  • 5
  • 2
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Laser detection of cloud point temperature
  • 20
  • POMD
  • 5
  • 2
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • fit of experimental data
  • 1
  • POMD
  • 6
  • 2
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • fit of experimental data
  • 1
  • POMD
  • 7
  • 2
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Laser detection of cloud point temperature
  • 18
  • POMD
  • 7
  • 2
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • fit of experimental data
  • 1
  • POMD
  • 13
  • 1
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Laser detection of cloud point temperature
  • 15
  • POMD
  • 13
  • 1
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • fit of experimental data
  • 1
  • POMD
  • 4
  • 1
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Laser detection of cloud point temperature
  • 14
  • POMD
  • 4
  • 1
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • fit of experimental data
  • 1
  • POMD
  • 13
  • 3
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Laser detection of cloud point temperature
  • 21
  • POMD
  • 13
  • 3
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 3; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • fit of experimental data
  • 1