Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Solubility of erythritol in methanol, ethanol and methanol + ethanol: Experimental measurement and thermodynamic modeling

Liu, X.[Xiang], Hu, Y.[Yonghong], Yang, W.[Wenge], Liu, Y.[Yan], Liang, M.[Mengmeng]
Fluid Phase Equilib. 2013, 360, 134-138
ABSTRACT
Data on corresponding solid-liquid equilibrium of erythritol in methanol, ethanol and methanol + ethanol was measured with temperature range from 283.15 K to 333.15 K under atmospheric pressure by employing the gravimetric method. The experimental results indicated that the solubility of erythritol in the solvents increases with increasing both temperature and mass fraction of organic solvents. The experimental data were well-correlated with the modified Apelblat equation, the h equation and the van't Hoff equation. In addition, the calculated solubilities showed good agreement with the experimental results. It was found that the modified Apelblat equation could obtain the better correlation results than the other two models. The standard enthalpy, standard entropy, and Gibbs free energy change of solution of erythritol were calculated from the solubility data by using the modified Apelblat model and the van't Hoff equation. What s more, the experimental data and model parameters would be useful for optimizing the process of purification of erythritol in industry.
Compounds
# Formula Name
1 C4H10O4 meso-1,2,3,4-butanetetrol
2 CH4O methanol
3 C2H6O ethanol
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
  • 3
  • 2
  • 1
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Solvent: Mass fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • Gravimetric Method
  • 66
  • POMD
  • 3
  • 1
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • Gravimetric Method
  • 11
  • POMD
  • 2
  • 1
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • Gravimetric Method
  • 11