Ion Association Phenomena and Static Dielectric Properties in Electrolyte Solutions: Application of the Effective Mean Spherical Approximation – Mass Action Law Approach

Mean spherical approximation – mass action law approach is developed to describe the influence of ion association on solvent and solution dielectric constants in electrolyte solutions. The dependences of the dielectric constants on electrolyte concentration, ionic sizes, and the degree of ion association are analyzed. The results are compared with recent experimental data for aqueous solutions of nitrate and formate salts and a fair agreement is obtained.