Partial Molar Volumes of Phenylacetic Acid and Several Polysubstituted Benzenes at Infinite Dilution in Water at Temperatures T = 298 to 373 K and at Pressures up to 30 MPa

Density data for dilute aqueous solutions of phenylacetic acid, benzene-1, 2-dicarboxylic acid (phtalic acid), benzene-1,2,4-tricarboxylic acid and 1,2,3-trihydroxy- benzene (pyrogallol) are presented together with the partial molar volumes at infinite dilution calculated from the experimental data. The measurements were performed at temperatures from T=298.15 K up to T=373.15 K and at three pressures up to 30 MPa. The data were obtained using a high-temperature, high-pressure flow vibrating-tube densimeter.