Widely used as a strong oxidizing agent in both organic synthesis and analytical chemistry. In organic synthesis, it facilitates selective oxidations, such as converting alcohols to carbonyl compounds, allylic oxidations, and carbon-carbon bond formations via specific oxidation reactions. In analytical applications, particularly redox titrations for quantitative analysis, it is key in the cerimetric titration method due to its stable and reversible Ce⁴⁺/Ce³⁺ redox couple. Commonly applied to determine reducing agents like iron(II), hydroxylamine, and hydrazine derivatives. Also employed in electrochemical studies, as a catalyst in certain oxidation reactions, and in chemical sensors. Its high solubility in water and acidic media suits it for aqueous systems. Additionally, used in preparing cerium-based materials and industrial processes for surface treatment and coating.