Used as an oxidizing agent in analytical chemistry for titrations, especially in cerimetry to determine the concentration of reducing agents. Commonly applied in industrial processes for the treatment of wastewater, where it helps in the oxidation of organic pollutants. Also utilized in electrochemical applications, such as in the formulation of electrolytes for certain types of fuel cells and batteries. Plays a role in the synthesis of catalysts for petroleum refining and automotive exhaust systems due to cerium’s redox properties. Occasionally used in laboratory settings for the preparation of cerium-doped materials and in research involving rare earth element behavior.