Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Miscibility behavior of trihexyl(tetradecyl)phosphonium tetrafluoroborate with cyclic hydrocarbons

Makowska, A.[Anna], Hryniewicka, A.[Anna], Szydlowski, J.[Jerzy]
Fluid Phase Equilib. 2014, 372, 21-25
ABSTRACT
Liquid-liquid miscibility temperatures as a function of composition have been determined experimentally for the binary systems formed by trihexyl(tetradecyl)phosphonium tetrafluoroborate with cyclohexane, cycloheptane, methylcyclohexane, 1,2- dimethylcyclohexane and 1,3-dimethylcyclohexane. All the measured systems present solubility curves characterized by the asymmetry with respect to the equimolar composition and represent the phase diagrams with the upper critical solution temperatures. The effect of the deuterium substitution in cyclohexane and methylcyclohexane has been also studied revealing small upward shift of the UCSTs which means slightly worse miscibility of ILs studied with selected deuterated cycloalkanes.
Compounds
# Formula Name
1 C32H68BF4P trihexyl(tetradecyl)-phosphonium tetrafluoroborate
2 C6H12 cyclohexane
3 C6D12 cyclohexane-d12
4 C7H14 methylcyclohexane
5 C7D14 methylcyclohexane-d14
6 C7H14 cycloheptane
7 C8H16 1,2-dimethylcyclohexane
8 C8H16 1,3-dimethylcyclohexane
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
  • 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
  • VISOBS
  • 19
  • POMD
  • 2
  • 1
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • derived with scaling equation
  • 1
  • POMD
  • 6
  • 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
  • VISOBS
  • 18
  • POMD
  • 6
  • 1
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • derived with scaling equation
  • 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
  • VISOBS
  • 17
  • POMD
  • 4
  • 1
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • derived with scaling equation
  • 1
  • POMD
  • 7
  • 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
  • VISOBS
  • 19
  • POMD
  • 7
  • 1
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • derived with scaling equation
  • 1
  • POMD
  • 8
  • 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
  • VISOBS
  • 19
  • POMD
  • 8
  • 1
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • derived with scaling equation
  • 1
  • POMD
  • 3
  • 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
  • VISOBS
  • 10
  • POMD
  • 3
  • 1
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • derived with scaling equation
  • 1
  • POMD
  • 5
  • 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
  • VISOBS
  • 12
  • POMD
  • 5
  • 1
  • Upper consolute temperature, K ; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • derived with scaling equation
  • 1