Studying the frequency dispersion of the dielectric permeability of electrolyte solutions

Resumo

Analytical equations for coefficients of dielectric permeability ε₁(ω) and dielectric losses ε₂(ω) of electrolyte solutions are obtained, based on the relationship between complex dielectric permeability and specific conductivity coefficients. The region of frequency dispersion is considered for dynamic dielectric permeability coefficient ε₁(ω) of an aqueous NaCl solution. Friction coefficients β_a and β_b, relaxation times τ_a, τ_b, and τ_ab, and dielectric permeability coefficient ε₁(ω) are numerically calculated for selected intermolecular interaction potentials \({\Phi _{ab}}(\left| {\bar r} \right|)\) and equilibrium radial distribution functions \({g_{ab}}(\left| {\bar r} \right|)\) over a wide range of variation in density ρ, concentration c, temperature T, and frequencies ω. The theoretically calculated results for ε₁(ω) are found to be in quantitative agreement with experimental data.