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

Determination and Correlation of Liquid Liquid Equilibrium Data for the Ternary Dichloromethane + Water + N,N-Dimethylacetamide System

Wang, C.[Chengxue], Liu, X.[Xiaojing], Wang, P.[Peng], Yang, P.[Pengfei]
J. Chem. Eng. Data 2014, 59, 6, 1733-1736
ABSTRACT
The liquid liquid equilibrium (LLE) data for the ternary system dichloromethane +water + N,N-dimethylacetamide were determined at (298.15 and 308.15) K and atmospheric pressure. The solubility data were obtained by using the cloud point titration method. The ternary phase diagrams could be drawn from the data of the tie-lines. The experimental data were correlated by using the nonrandom two-liquid (NRTL) model. The binary interaction parameters of the ternary system were regressed by nonlinear least-squares method, then the LLE data of the ternary system were calculated. The results indicated that the calculated LLE data by using NRTL model agreed well with the experimental data. The relative mean deviation and the average mean deviation were no more than 1.484 % and 0.513 %, respectively.
Compounds
# Formula Name
1 CH2Cl2 dichloromethane
2 C4H9NO N,N-dimethylethanamide
3 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
  • 2
  • 3
  • Mass fraction - 1 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Mass fraction - 3; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Titration method
  • 24
  • POMD
  • 1
  • 2
  • 3
  • Mass fraction - 1 ; Liquid mixture 2
  • Mass fraction - 3 ; Liquid mixture 1
  • Mass fraction - 1 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Mass fraction - 3; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • Chromatography
  • Chromatography
  • Chromatography
  • 12
  • POMD
  • 1
  • 3
  • Mass fraction - 3 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • Chromatography
  • 2
  • POMD
  • 1
  • 3
  • Mass fraction - 3 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • Chromatography
  • 2