The substances that make up the three-component reciprocal system of fl uorides and chlorides of potassium and cadmium have various applications, both individually and in mixtures. The faceting elements of the ternary reciprocal system include in binary systems the formation of compounds KF∙CdF2 , KCl∙CdCl2 of congruent and compound 4KCl∙CdCl2 of incongruent melting. The crystallization tree is constructed. Taking into account the compounds, a crystallization tree has been constructed that has a linear structure and includes fi ve stable secondary triangles.
