Analytical equations for coefficients of dielectric permeability e1(ω) and dielectric losses e2(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 e1(ω) of an aqueous NaCl solution. Friction coefficients βa and βb, relaxation times τa, τb, and τab, and dielectric permeability coefficient e1(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 e1(ω) are found to be in quantitative agreement with experimental data.