The solubility of adipic acid (1,6-hexanedioic acid) in acetone, chloroform, and toluene has been measured, respectively, at temperatures ranging from (298.15 to 323.15) K and (298.15 to 333.15) K by a static analytical method. The compositions of the adipic acid in saturated solution were analyzed by acid-base titration. A modified Apelblat equation was used to correlate the experimental data.