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

Isothermal Vapor-Liquid Equilibrium, Excess Enthalpy Data and Activity Coefficients at Infinite Dilution for the Binary System Water + Methyl Lactate

Sanz, M. T.[Maria Teresa], Gmehling, J.
J. Chem. Eng. Data 2005, 50, 1, 85-88
ABSTRACT
Isothermal vapor-liquid equilibrium at (283.15, 293.15, and 303.15) K and excess enthalpy data at 303.15 K, 323.15 K have been measured for the binary reactive system water + methyl lactate. In addition activity coefficients at infinite dilution have been determined in the temperature range (303.15 to 333.15) K. While a computer-operated static apparatus was used to obtain the isothermal P-x data, the excess enthalpies were measured by means of a commercial isothermal flow calorimeter and the infinite dilution activity coefficient measurements were carried out using the dilutor technique. The experimental VLE, HE and data were correlated simultaneously by using quadratic temperature dependent UNIQUAC parameters.
Compounds
# Formula Name
1 C4H8O3 methyl 2-hydroxypropanoate
2 H2O water
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
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 3
  • POMD
  • 1
  • 2
  • Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Flow calorimetry
  • 30
  • POMD
  • 1
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 2; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 48