Used primarily as a polymerization initiator in the production of polymers like polyethylene and polystyrene. It facilitates the initiation of radical polymerization reactions due to its ability to decompose into free radicals at elevated temperatures. Commonly employed in the manufacture of plastics, resins, and synthetic rubbers. Also utilized as a cross-linking agent in the vulcanization of rubber to enhance its strength and elasticity. In addition, it serves as a curing agent for thermosetting resins in coatings and adhesives. Its role in organic synthesis includes acting as an oxidizing agent in various chemical reactions.