The solubilities of lanthanum chloride 7-hydrate and lanthanum chloride 6-hydrate in water, and a study of the thermal decomposition of hydrated lanthanum chloride

Thermal decomposition of LaCl37H2O results in the stepwise formation of LaCl33H2O, LaCl3·H2O, LaCl3 and LaOCl. Under proper conditions either LaCl36H2O or LaCl37H2O may separate from aqueous solutions of lanthanum chloride. The solubilities of the 6- and 7-hydrates at various temperatures are given.