By use of the static analytical method, the solubilities of terephthalic acid in binary dimethyl sulfoxide (2) + water and in binary N,N-dimethylformamide (2) + water solvent mixtures were determined in the temperature range from (301.4 to 373.7) K and solvent composition range from (w(2) = 0.8 to 1.0). The solubility data were correlated with an empirical equation.