Used as a precursor in the synthesis of cerium-based catalysts for automotive exhaust systems, helping reduce harmful emissions. Employed in the production of phosphors for fluorescent lamps and display technologies due to its luminescent properties when doped with other elements. Applied in glass manufacturing to improve UV absorption and provide decolorizing effects. Utilized in analytical chemistry as a standard reagent in redox titrations. Also found in some electroplating processes and in the preparation of other cerium compounds for industrial use.