Used in electroplating processes to deposit cadmium metal coatings on steel and other metals, providing corrosion resistance, especially in aerospace and automotive industries. Commonly employed in the preparation of cadmium-based pigments and stabilizers for plastics. Serves as a source of cadmium ions in analytical chemistry for calibration and testing. Historically used in the manufacturing of photoresistors and solar cells, though this application has declined due to environmental and toxicity concerns. Also utilized in some specialized battery systems and in research laboratories for synthesis of cadmium-containing compounds.