The electric conductivity of stationary and homogeneous electrolytes up to concentrations c ≈ 1 mol/l

A theory of the electric conductivity in homogeneous and stationary binary electrolytes is developed which is valid up to concentrations c ≈ 1 mol/l. It is based on the stochastic Liouville equation, the linear superposition approximation in the cluster expansion of the 3-particle distribution functions and the hydrodynamical approximation in the expansion of the 2-particle distribution functions by their moments in momentum space. The limiting law in dilute electrolytes is calculated analytically. For hydrous electrolytes the conductivity is calculated numerically up to concentrations c ≈ 1 mol/l. The results are in a very good agreement with experimental data.