Volumetric behavior of carbon dioxide + 2-methyl-1-propanol and carbon dioxide + 2-methyl-2-propanol mixtures at 313.15 K

Volumetric properties were measured of carbon dioxide + 2-methyl-1-propanol and carbon dioxide + 2-methyl-2-propanol mixtures at 313.15 K, using the vibrating tube density meter. In the present experiments, no analytical instrument was required. The saturated pressure was also measured of carbon dioxide + 2-methyl-1-propanol and carbon dioxide + 2-methyl-2-propanol mixtures at 313.15 K by the synthetic method. The experimental data obtained were correlated with the density equation, Soave–Redlich–Kwong (SRK) equation of state, and the pseudocubic equation of state. The partial molar volumes of carbon dioxide and C4 alcohols (2-methyl-1-propanol or 2-methyl-2-propanol) were calculated, based on the calculated results by the density equation.