ACTIVITIES OF TITANIUM IONS IN MOLTEN CALCIUM CHLORIDE

摘要

The subchloride titanium was prepared by sponge titanium and titanium tetrachloride in the CaCl_2 at 1173 K. The species were detected are mainly titanium dichloride, and the average valent in the melt are 2.05. The accurate equilibrium constants were obtained for the reaction 3Ti~(2+)= 2Ti~(3+)+Ti after the accurate activities of titanium chloride were evaluated with emf method, and the observed deviations from ideal behavior are discussed.