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Volumetric properties of carbon dioxide + ethanol mixtures at 313.15 K were measured, using the vibratingtube Anton Paar DMA 512P density meter. In the present experiments, no analytical instrument was required. The saturated pressures of carbon dioxide + ethanol mixtures at 313.15 K were measured by the synthetic method. The experimental data obtained were correlated with the density equation, the Soave-Redlich-Kwong (SRK) equation of state, and the pseudocubic equation of state.

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High pressure density behaviors for fluid mixtures made of carbon dioxide with solvent, methyl acetate, ethyl acetate, 2-propyl acetate, methanol, 1-propanol, or 2-propanol, at 313.15 K were satisfactorily correlated. The standard deviations were between 0.4 and 2.2 kg m -3 in density for each system in the composition range from 0.00 to 0.95 mole fraction of carbon dioxide.

Volumetric behavior was measured of carbon dioxide + butan-1-ol mixtures at 313.15 K using a vibrating tube density meter. The saturated pressures were also measured of carbon dioxide + butan-1-ol mixtures at 313.15 K by the conventional synthetic method. The equilibrium vapor compositions were newly evaluated by combining the molar volume equation, the experimental values of the equilibrium vapor density, vapor density of pure carbon dioxide, and pressure.