Distribution coefficients of impurities in cadmium fluoride

Experimental data on the liquidus curve in cadmium fluoride-metal fluoride systems were used to calculate the distribution coefficients of di- and tri valent impurities in CdF2. A similar method was proposed for calculating th e distribution coefficient from solidus data. It was shown that the variati ons of the calculated distribution coefficients with the ionic radii of M2 and R3+ are well fitted by Gaussians. Phase relations in the CdF2-rich par t of the CdF2-InF3 system were studied by differential thermal analysis and x-ray diffraction.