Used in electroplating processes to produce corrosion-resistant coatings on metals, particularly in aerospace and automotive industries. Serves as a precursor in the synthesis of cadmium-based semiconductors like cadmium telluride (CdTe) for solar cells. Employed in laboratories as a source of cadmium ions in chemical reactions and analytical testing. Also utilized in the preparation of phosphors and in some dye-sensitized solar cell applications. Due to its toxicity, handling requires strict safety controls, and its use is restricted in many consumer products.