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

Liquid-Liquid Equilibria for the Binary Systems of N-Formylmorpholine with Branched Cycloalkanes

Ko, M.[MinSu], Na, S.[Sangyoup], Kwon, S.[Soyoung], Lee, S.[Sungjin], Kim, H.[Hwayong]
J. Chem. Eng. Data 2003, 48, 3, 699-702
ABSTRACT
Liquid-liquid equilibrium (LLE) data were measured for three binary systems containing N-formylmorpholine and branched-cycloalkanes (methylcyclopentane, methylcyclohexane, and ethylcyclohexane) over the temperature range around 300 K to close to the upper critical solution temperature (UCST) using a circulation type equipment with an equilibrium view cell. The compositions of both branched-cycloalkane rich and N-formylmorpholine rich phases were analyzed by on-line gas chromatography. The binary liquid-liquid equilibrium data were correlated with the NRTL and UNIQUAC equations using temperature-dependent parameters. Although clear deviation was observed in the vicinity of the UCST, the NRTL and UNIQUAC equations fitted the experimental data well. The solubility of cycloalkane in the N-formylmorpholine increases in the following order at the same temperature: methylcyclopentane, methylcyclohexane, and ethylcyclohexane.
Compounds
# Formula Name
1 C6H12 methylcyclopentane
2 C5H9NO2 N-formylmorpholine
3 C7H14 methylcyclohexane
4 C8H16 ethylcyclohexane
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
  • Mole fraction - 1 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • CHROM:UFactor:16
  • 15
  • POMD
  • 1
  • 2
  • Mole fraction - 1 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • CHROM:UFactor:16
  • 15
  • POMD
  • 3
  • 2
  • Mole fraction - 3 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • CHROM:UFactor:16
  • 15
  • POMD
  • 3
  • 2
  • Mole fraction - 3 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • CHROM:UFactor:16
  • 15
  • POMD
  • 4
  • 2
  • Mole fraction - 4 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • CHROM:UFactor:16
  • 19
  • POMD
  • 4
  • 2
  • Mole fraction - 4 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • CHROM:UFactor:16
  • 19