Abstract
The solubility of sodium chloride was investigated by using a continuous flow method over the temperature and pressure ranges of (568 to 598) K and (10 to 25) MPa, respectively. The results showed that the solubility of sodium chloride increased with increasing water density. In general, over the low-density ranges, the increase of solubility is not significant. Whereas, over the high-density ranges, the solubility greatly increases with density. The experimental solubility data were also correlated with seven empirical and semiempirical models (empirical, enthalpy, Cp-, Flory–Huggins, ionization, second-order polynomial, and third-order polynomial models). The correlated results indicated that the second-order polynomial model provided the best fit. The solubility data of sodium chloride in sub-, near-, and supercritical water from this work and literature were collected with a view to evaluating the correlative and predictive capability of these models over a wide range. The enthalpy model gave the best...
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