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

Solid-Liquid Equilibria of Nonanedioic Acid in Binary Ethanol + Water Solvent Mixtures from (292.35 to 345.52) K

Chen, S.-n.[Su-ning], Xia, Q.[Qing], Li, D.[Dong], Yuan, W.-G.[Wei-Guang], Zhang, F.-B.[Feng-Bao], Zhang, G.-L.[Guo-Liang]
J. Chem. Eng. Data 2009, 54, 4, 1395-1399
ABSTRACT
Solubilities of nonanedioic acid in binary ethanol + water solvent mixtures have been determined by the dynamic method using a laser monitoring observation technique over a temperature range from (292.35 to 345.52) K and a solvent composition, mole fraction of ethanol of solute-free x2 0 , range from 0.0 to 1.0. The experimental results showed that in pure water the solubility of nonanedioic acid increased slowly with temperature below 342.77 K but increased significantly above 342.77 K. The nonanedioic acid + ethanol + water system was found to exhibit a synergistic effect on solubility. The fusion enthalpy and melting temperature of nonanedioic acid were measured by differential scanning calorimetry. The modified eh equation, the Wilson equation, and the NRTL equation have been applied to correlate a subset of the experimental data. These models can successfully describe the solubility of nonanedioic acid in the binary mixtures with an ethanol mole fraction higher or equal to 0.2811.
Compounds
# Formula Name
1 C2H6O ethanol
2 C9H16O4 1,9-nonanedioic acid
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
  • 2
  • Normal melting temperature, K ; Crystal
  • Crystal
  • Liquid
  • Air at 1 atmosphere
  • Differential scanning calorimeter
  • 1
  • POMD
  • 2
  • Molar enthalpy of transition or fusion, kJ/mol ; Crystal
  • Crystal
  • Liquid
  • Gas
  • Differential scanning calorimeter
  • 1
  • POMD
  • 1
  • 2
  • 3
  • Solid-liquid equilibrium temperature, K ; Liquid
  • Solvent: Mole fraction - 1; Liquid
  • Mole fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 2
  • laser monitoring
  • 107