Used as a strong oxidizing agent in polymerization reactions, particularly in the production of synthetic rubbers and plastics. Commonly applied in emulsion polymerization as a free radical initiator to start the reaction process. Widely utilized in etching copper in printed circuit board manufacturing due to its ability to oxidize metals. Employed in cleaning and surface preparation of metals, removing organic contaminants and oxides. Used in hair bleaching and cosmetic formulations for its bleaching properties. Applied in environmental analysis for the digestion of organic matter in water and soil samples to determine total phosphorus or nitrogen content. Also used in some dental applications for cleaning and etching dental prosthetics.