Used in the production of specialty glasses and optical components due to its ability to transmit ultraviolet and infrared light. Employed in some types of welding and brazing fluxes to prevent oxidation and improve flow. Serves as a catalyst or reagent in certain chemical synthesis processes, particularly in inorganic and materials chemistry. Also investigated for use in semiconductor materials and thin-film coatings where fluoride-based compounds are required. Handling requires caution due to the toxicity of cadmium.