The mixed solubilities of 4-aminobenzoic acid and 5-sulfosalicylic acid(blended uniformly in a 1:1 molar ratio) in supercritical carbon dioxide with and without ethanol as cosolvent were measured at 308-328 K and 8.0-21.0 MPa by means of a flow-type equilibrium method.The effects of varying temperature and pressure on the solubility were also investigated.The interaction between the solutes and the selectivity of the cosolvent towards different solutes were also studied.The experimental data for 4-aminobenz...