Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Isobaric ternary vapour-liquid equilibrium of methanol(1) + diisopropyl ether(2) + isopropyl alcohol(3) along with methanol + isopropyl alcohol binary data at atmospheric and sub-atmospheric pressures

Soujanya, J., Satyavathi, B., Sankarshana, T.
Fluid Phase Equilib. 2015, 405, 31-36
ABSTRACT
Experimental vapour-liquid equilibrium (VLE) data of the ternary system methanol(1) + diisopropyl ether(2) + isopropyl alcohol(3) at 53.33, 66.66, 79.99 and 95.33 kPa, studied using a Sweitoslawski-type ebulliometer over the entire composition range is reported here. VLE data of one of the constituent binaries of this ternary system, methanol(1) + isopropyl alcohol(3) was also measured at 53.33, 66.66, 79.99 and 94.79 kPa. Wilson, NRTL, UNIQUAC, Peng Robinson (PR) and Soave-Redlich-Kwong (SRK) equations of state (EoS) combined with Wong Sandler (WS) mixing rules were used to correlate the experimental binary data. The experimental binary data has also been compared with predictions from UNIFAC model. NRTL model was found to represent the methanol(1) + isopropyl alcohol(3) system best. Experimental ternary VLE data was found to be in good agreement with predictions from NRTL model with an average root mean square deviation of 0.1164 between experimental and predicted temperatures.
Compounds
# Formula Name
1 CH4O methanol
2 C6H14O diisopropyl ether
3 C3H8O propan-2-ol
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
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • mechanical oscillator
  • 1
  • POMD
  • 1
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • mechanical oscillator
  • 1
  • POMD
  • 2
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • mechanical oscillator
  • 1
  • POMD
  • 3
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 1
  • 3
  • Boiling temperature at pressure P, K ; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 1; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 85
  • POMD
  • 1
  • 3
  • 2
  • Boiling temperature at pressure P, K ; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 1; Liquid
  • Mole fraction - 2; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 52