Used in electroplating baths to produce uniform and adherent cadmium coatings that provide corrosion resistance to metals, especially in aerospace and automotive industries. Employed as a precursor in the synthesis of cadmium sulfide, a yellow pigment used in plastics, ceramics, and coatings. Serves as an electrolyte component in nickel-cadmium (Ni-Cd) rechargeable batteries due to its ionic conductivity. Utilized in some specialized laboratory applications for generating cadmium ions in analytical procedures and in the preparation of other cadmium compounds. Historically used in phosphors for cathode ray tubes, though this application has declined due to environmental and health concerns. Due to its high toxicity, usage is strictly regulated with emphasis on proper waste management.