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

Liquid-Liquid Equilibria in Ternary Systems 2-Methylbutane + 2-Methyl-2-propanol + Water and Pentane + 2-Methyl-2-propanol + Water at 293.15 K

Reckova, Z.[Zuzana], Rehak, K.[Karel], Vonka, P.[Petr], Pokki, J. -P.[Juha-Pekka]
J. Chem. Eng. Data 2009, 54, 2, 417-422
ABSTRACT
The liquid-liquid equilibria in ternary systems 2-methylbutane + 2-methyl-2-propanol + water and pentane + 2-methyl-2-propanol + water were experimentally determined at 293.15 K by direct analytical methods and a titration method. The ternary data along with other thermodynamic data of binary subsystems previously published were utilized for a thermodynamic description of the systems. The original UNIQUAC model was combined with a ternary term. Binary parameters of the model were considered to be temperature dependent, and they were calculated employing the maximum likelihood method. Ternary parameters were evaluated using a nonderivative numerical procedure.
Compounds
# Formula Name
1 C4H10O 2-methylpropan-2-ol
2 C5H12 2-methylbutane
3 H2O water
4 C5H12 pentane
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
  • 1
  • 2
  • 3
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 2; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • Titration method
  • Titration method
  • 23
  • POMD
  • 1
  • 2
  • 3
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • UNKNOWN
  • 9
  • POMD
  • 1
  • 4
  • 3
  • Mole fraction - 1 ; Liquid mixture 1
  • Mole fraction - 4 ; Liquid mixture 2
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 4; Liquid mixture 1
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • Titration method
  • Titration method
  • 18
  • POMD
  • 1
  • 4
  • 3
  • Liquid-liquid equilibrium temperature, K ; Liquid mixture 1
  • Mole fraction - 4; Liquid mixture 1
  • Mole fraction - 1; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • UNKNOWN
  • 5