Used primarily in the preparation of samarium-based materials, especially in the synthesis of samarium oxide, which serves in electronics, magnets, and catalysts. It acts as a precursor in the production of specialty glasses and ceramics that require rare earth elements for enhanced performance. Also employed in research settings for developing luminescent compounds and in the doping of certain phosphors. Its hydrated form aids in solubility during chemical processing, making it suitable for laboratory-scale reactions and purification processes involving samarium.