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

Ternary Liquid-Liquid Equilibria of Acetonitrile and Water with Heptanoic Acid and Nonanol at 323.15 K and 1 atm

Narasigadu, C., Raal, J. D., Naidoo, P., Ramjugernath, D.
J. Chem. Eng. Data 2009, 54, 3, 735-738
ABSTRACT
Liquid-liquid equilibrium data were measured and correlated for the ternary systems acetonitrile + water + heptanoic acid and acetonitrile + water + nonanol at 323.15 K and 1 atm. The liquid-liquid equilibrium data were measured using the direct analytical method in a double-walled glass cell. The binodal curve was correlated using a modified Hlavaty L equation, a function, and a log A equation. The experimental tie lines were correlated using the NRTL and UNIQUAC activity coefficient models. Fitting of both activity coefficient models was undertaken by nonlinear least-squares regression of the data. The tie-line data were used to derive the selectivity values for solvent separation efficiency.
Compounds
# Formula Name
1 C2H3N acetonitrile
2 C7H14O2 heptanoic acid
3 C9H20O nonan-1-ol
4 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
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 2
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 3
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 4
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 1
  • 2
  • 4
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 4 ; Liquid mixture 1
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 4; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • CHROM:UFactor:16
  • CHROM:UFactor:16
  • CHROM:UFactor:16
  • 7
  • POMD
  • 1
  • 3
  • 4
  • Mole fraction - 3 ; Liquid mixture 2
  • Mole fraction - 4 ; Liquid mixture 1
  • Mole fraction - 3 ; Liquid mixture 1
  • Mole fraction - 4; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • CHROM:UFactor:16
  • CHROM:UFactor:16
  • CHROM:UFactor:16
  • 9