Used as a catalyst in organic synthesis, particularly in esterification and condensation reactions. Exhibits luminescent properties when doped into phosphor materials, making it suitable for use in lighting and display technologies. Employed in research for its magnetic characteristics, especially in the development of advanced magnetic storage media. Also investigated for potential applications in neutron absorption in nuclear reactors due to samarium's high neutron capture cross-section. Serves as a precursor in the preparation of other samarium-based compounds and ceramic materials.