Studies in statistical mechanics of Coulombic systems. III. Numerical solutions of the HNC and RHNC equations for the restricted primitive model

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Abstract
An efficient and accurate numerical procedure is used to solve the HNC and RHNC integral equations for charged hard spheres, the so‐called restricted primitive model (RPM) for electrolyte solutions and molten salts. The computed thermodynamic quantities and correlation functions are found to be in good but not excellent agreement with Monte Carlo (MC) results for densities and temperatures corresponding to the molten‐salt regime. Comparisons with the mean spherical approximation (MSA) and the truncated Γ2 approximation (TΓ2A) are also made.