P304+P340：IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338：IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405：Store locked up.
Description
Used as a desiccant, fertilizer and a catalyst. Mordant in dyeing, in the manufacture of bister, as a drier for paints and varnishes, and as an oxidation catalyst. Used for the production of high purity manganese dioxide, manganese oxide hydrate, oxide-based catalysts, and catalysts for oxidation.
