Used as a precursor to dysprosium oxide in high-tech applications, including the production of high-performance NdFeB permanent magnets doped with dysprosium for enhanced high-temperature stability in electric vehicle motors, wind turbines, and other demanding environments.

Also employed in the preparation of dysprosium oxide for solid oxide fuel cells and advanced lighting systems. Serves as a precursor in the synthesis of dysprosium-containing phosphors for mercury-vapor lamps and LEDs.

Utilized in research for neutron absorption materials due to dysprosium's high thermal neutron capture cross-section. Applied in specialty ceramics, catalysts, and functional materials requiring rare earth properties, such as conductive ceramics and electronics.

The decahydrate form improves solubility for solution-based processing in material science and chemical synthesis applications.