The solubility of D-camphor-10-sulfonic acid (D-CSA, CAS No. 3144-16-9) in seven solvents (ethyl acetate, methyl acetate, n-butyl acetate, isopropyl acetate, glacial acetic acid, acetic anhydride and propionic acid) was measured under atmospheric pressure. The solubility data were correlated by the modified Apelblat equation, the a equation, the Wilson model and the UNIQUAC model, respectively. And the thermodynamic parameters of D-CSA, molar dissolution enthalpy and entropy, were determined by the Van't Hoff equation to explain its dissolving behavior in each solvent. (C) 2015 Elsevier B.V. All rights reserved.