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

Miscibility of Trihexyl(tetradecyl)phosphonium Chloride with Alkanes

Makowska, A.[Anna], Siporska, A.[Agnieszka], Oracz, P.[Pawel], Szydlowski, J.[Jerzy]
J. Chem. Eng. Data 2010, 55, 8, 2829-2832
ABSTRACT
Liquid-liquid miscibility temperatures as a function of composition have been determined experimentally for the binary systems formed by trihexyl(tetradecyl)phosphonium chloride with hexane, octane, decane, undecane, and dodecane. All the measured systems present solubility curves characterized by asymmetry with respect to equimolar composition and represent the phase diagrams with the upper critical solution temperatures (UCST). For a given set of binary mixtures with trihexyl(tetradecyl)phosphonium chloride, the solubility decreases with increasing alkane chain length. The experimental liquid-liquid equilibrium data were satisfactorily correlated by the NRTL equation.
Compounds
# Formula Name
1 C32H68ClP trihexyl(tetradecyl)phosphonium chloride
2 C6H14 hexane
3 C8H18 octane
4 C10H22 decane
5 C11H24 undecane
6 C12H26 dodecane
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
  • laser detection
  • 12
  • 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
  • laser detection
  • 15
  • 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
  • 21
  • 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
  • laser detection
  • 13
  • 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
  • laser detection
  • 12