Measurement and Correlation of Solubilities of Decanedioic Acid in C4−C6 Alcohol Solvents

The solubility data have been measured experimentally for decanedioic acid in n -butanol, 2-butanol, n -pentanol, n -hexanol, and binary solvents 2-propanol + water from (294 to 351) K. The system containing decanedioic acid + 2-propanol + water exhibited a synergistic effect on solubility. The Wilson model, the nonrandom two-liquid (NRTL) model, and the universal quasi-chemical functional group activity coefficient (UNIFAC) model were applied to describe the solid−liquid equilibrium (SLE). It is shown that the Wilson model and the NRTL model can give better results. The primary reason for relatively larger deviations in the case of using the UNIFAC model was discussed.