Used as a catalyst in chemical synthesis, particularly in oxidation reactions. Employed in the production of dry cell batteries due to its electrical conductivity. Serves as a precursor for other manganese compounds in industrial processes. Added in trace amounts to animal feed and fertilizers to support metabolic functions and plant growth. Utilized in laboratory settings for spectroscopy and magnetic studies because of its paramagnetic properties. Also found in some electroplating solutions to improve corrosion resistance and surface finish of metal coatings.