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 35 1) 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 call give better results. The primary reason for relatively larger deviations ill the case of using the UNIFAC model was discussed.