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

Determination and Modeling of Isobaric Vapor Liquid Equilibria for the Methylcarbamate + Methyl-N-phenyl Carbamate System at Different Pressures

Xu, D.[Dehua], Li, H.[Huiquan], Li, Z.[Zhibao]
J. Chem. Eng. Data 2013, 58, 11, 3110-3117
ABSTRACT
The vapor pressures of methylcarbamate (MC) and methyl n-phenyl carbamate (MPC), at different temperatures ranging from (341.45 to 418.45) K, have been measured using the quasi-static ebulliometric method. The experimental data were fitted to the Antoine equation with the overall average absolute deviation of pressure of 0.06 kPa. Isobaric vapor liquid equilibrium (VLE) data were also determined for the MC and MPC system at (1.00, 2.00, 4.00, 6.00, and 8.00) kPa by the same method and were correlated with nonrandom two-liquid (NRTL) and Wilson models. The both model parameters were obtained with the overall average absolute deviation of temperature 0.82 K and 0.81 K. The relative volatility of the binary system was calculated and was more than 1 by far, indicating that high-purity MPC can be obtained from the binary mixture by distillation technology.
Compounds
# Formula Name
1 C2H5NO2 carbamic acid, methyl ester
2 C8H9NO2 methyl N-phenylcarbamate
3 C2H6O2 1,2-ethanediol
4 C10H22 decane
5 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
  • Manometric method
  • 13
  • POMD
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Manometric method
  • 21
  • POMD
  • 3
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Manometric method
  • 13
  • POMD
  • 4
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Manometric method
  • 15
  • POMD
  • 5
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Manometric method
  • 15
  • POMD
  • 1
  • 2
  • Boiling temperature at pressure P, K ; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 1; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 46