Key words: aqueous solutions; critical point; equation of state; Krichevskii parameter; partial molar volume; supercritical water; water
The results of the study of thermodynamic properties of infinite dilution aqueous solutions (IDS) near the critical point (CP) of pure water using the Krichevskii parameter and the properties of water are reported. The values of the Krichevskii parameter for aqueous hydrocarbon, alcohol, salt, and gas have been calculated by using the available critical lines and phase diagrams data. The derived values of the Krichevskii parameter have been used to study thermodynamic and structural properties of the IDS in the critical and supercritical regions.