Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Solubility of puerarin in the binary system of methanol and acetic acid solvent mixtures

Wei, D.[Dongwei], Zhang, X.[Xiaorong]
Fluid Phase Equilib. 2013, 339, 67-71
ABSTRACT
The solubility of puerarin in methanol and acetic acid solvent mixtures was measured by a static analytical method at temperatures ranging from (293.15 to 333.15) K. The mass fraction of acetic acid in the solvent mixtures ( w 3 ) ranges from 0 to 0.6. The Apelblat equation was applied for correlating the experimental solubility data, and subsequently used to derive the apparent molar enthalpy, Gibbs energy, and entropy of dissolution of puerarin in methanol + acetic acid binary mixtures.
Compounds
# Formula Name
1 C21H20O9 4H-1-benzopyran-4-one, 8-.beta.-D-glucopyranosyl-7-hydroxy-3-(4-hydroxyphenyl)-
2 CH4O methanol
3 C2H4O2 acetic acid
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 - 3; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • Index of refraction calibration data
  • 35