CHEMISTRY AND CHEMICAL THERMODYNAMICS OF CHLORIDE AND PERCHLORATE AQUEOUS SOLUTIONS OF TNDTUM (III) CHLORIDE
Based on the modified Bmnsted-Guggenheim-Scatchard’s theory (Specific ion Interaction Theory, SIT), thermodynamic models of InCl<sub>3</sub>-(H, Na, Li, K)(Cl, ClO<sub>4</sub>) aqueous solutions are created and realized in the program Mathcad medium, taking into account all ionic equilibria and changes in activity factors within wide ranges of concentrations. A comparison of the obtained values of the activity coefficients, emf of simulated cells, pH, and Bjerrum formation functions with experimental data processed by regression analysis in Excel and those obtained by the Pitzer model is carried out. The advantage of the SIT model for describing complex multicomponent systems is shown. The inadequacy of recent synchrotron EXAFS studies was revealed.