AbstractSeven different potential forms for the overlap repulsive energy proposed by various investigators as reported in the literature are examined for the fluorite‐structure crystals, viz. CaF2, SrF3, BaF2, PbF2, Sr(NO3)2, Ba(NO3), and Pb(NI3)2. A number of crystalline state properties such as cohesive energy, bulk modulus and its pressure derivatives, Grünesien und Anderson parameters, first and second order volume and pressure derivatives of dielectric constants are calculated using different potential functions. The results obtained are found to compare well with available experimental data, and also reveal the usefulness of the approach based on interionic potentials in predicting new resul