Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Measurement and correlation of solubility of abietic acid in ethanol + water mixtures

Nong, W.[Weijian], Chen, X.[Xiaopeng], Wang, L., Liang, J.[Jiezhen], Wang, H.[Hailing], Huang, Y.[Yingying], Tong, Z. [Zhangfa]
J. Chem. Thermodyn. 2014, 68, 199-204
ABSTRACT
Using a laser monitoring observation technique, the solubility of abietic acid in (ethanol + water) mixtures was measured by a dynamic method at atmospheric pressure. The solubility of abietic acid increased with an increase of temperature and the concentration of ethanol. Experimental solubility data were correlated by means of the Wilson, NRTL and kh equations utilizing parameters derived from the (solid + liquid) equilibrium (SLE) data. The results showed that the three equations are suitable for description of the solubility data of abietic acid in the (ethanol + water) mixtures investigated.
Compounds
# Formula Name
1 C20H30O2 abietic acid
2 C2H6O ethanol
3 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
  • Molar enthalpy of transition or fusion, kJ/mol ; Crystal
  • Crystal
  • Liquid
  • Air at 1 atmosphere
  • DSC
  • 1
  • POMD
  • 1
  • Normal melting temperature, K ; Crystal
  • Crystal
  • Liquid
  • Air at 1 atmosphere
  • DTA
  • 1
  • POMD
  • 2
  • 1
  • 3
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Solvent: Mass fraction - 2; Liquid
  • Pressure, kPa; Crystal - 1
  • Liquid
  • Crystal - 1
  • Gravimetric
  • 89
  • POMD
  • 2
  • 1
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • OTHER::sMethod:Gravimetric
  • 15