A compound containing this element is electrolyzed in a solution of molten calcium chloride for purification in the Fray-Farthing-Chen Cambridge process. In 1972, (15[1])Kenichi Honda and Akira Fujishima (15[1])discovered that an (15[1])oxide of this element can (15[1])catalyze the decomposition of water. The thio sol-gel process produces thin films of this element’s disulfide, which can be used to form the cathode in solid-state lithium batteries. (15[1]-5[1])The (*) Petasis reagent is prepared by reacting alkyllithium (10[1])with the dichloride of a metallocene (-5[1])containing (-5[1])this metal. This metal is extracted from rutile (10[1])in the (10[2])Kroll (10[3])process. (10[9]-5[1])Both (10[1])zinc (10[1])and this metal’s dioxide (10[1])are white pigments (-5[1])commonly added to (10[1])mineral (10[1])sunscreen (10[1])products. (10[2]-5[1])For 10 points, (10[1])name this corrosion-resistant metal with the chemical symbol Ti (10[1])■END■ (10[2])