Used as an electrolyte in electroplating processes, particularly for depositing cadmium metal coatings that provide corrosion resistance to steel and other metals. Commonly applied in aerospace and automotive industries for protective coatings on fasteners, connectors, and components exposed to harsh environments. Also used in the preparation of cadmium-based pigments and in some types of batteries, such as nickel-cadmium (Ni-Cd) cells, where it serves as a source of cadmium ions. Additionally, employed in laboratory settings for analytical chemistry procedures and calibration standards involving cadmium detection.