Estimation of Salt and Temperature Effects on Ion Product of Water in Aqueous Solution

The ion product of water at 298.15 K was evaluated according to the Pitzer ionic interaction theory in LiCl, NaCl, KCl, KNO3, LiClO4, and NaClO4 media of different concentrations (0.1–5 mol kg−1) and in artificial seawaters at different salinities (20–44%). The Pitzer approach was also applied to the estimation of the ion products of water in NaCl media at temperatures (288–373 K) different from 298.15 K. The theoretically evaluated values showed reasonable agreement with experimental ones.