It is used as a mordant in dyeing, drier for paints and varnishes, an oxidation catalyst, and in the manufacture of bister. It is also used in the manufacture of fertilizer. It is used for the production of high purity manganese dioxide, manganese oxide hydrate, oxide-based catalysts, and catalysts for oxidation.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.