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METHODS OF
PROPERTIES’ ESTIMATION FOR AQUEOUS SPECIES High-temperature thermodynamic properties of most aqueous species of interest for geochemistry are not and will not be measured experimentally. Therefore, methods of reliable estimation of properties of aqueous compounds at elevated T and P are definitely needed. Much of earlier research was based on the search of empirical correlations between the thermodynamic properties of aqueous species at 298.15 K and the parameters of the HKF-model for different classes of dissolved compounds. Recent research adds methods of estimation of properties of uncharged compounds at low and moderate densities of water (second cross virial coefficients for solute-water interactions, Krichevskii parameter for aqueous species). |