A semi-flow type apparatus was used to measure the vapor-liquid equilibria (VLE) of CO, with methyl salicylate, eugenol, and diethyl phthalate binary mixtures at 308.15, 318.15, and 328.15 K over the pressure range from 1.4 to 13 MPa. New VLE data for these binary mixtures are presented and the Henry's constants were determined from these results. The Soave-Redlich-Kwong and the Peng-Robinson equations of state, and the van der Waals, Panagiotopoulos-Reid and Huron-Vidal mixing rules are used to correlate these VLE data. It is shown that both equations of state with the van der Waals mixing rules and two adjustable parameters give satisfactory correlation results. (C) 2000 Elsevier Science B.V. All rights reserved.