Persulfates as polymerization initiators Markets & Products Plastics & Rubber tert.-Butanol (azeotropic) High-quality intermediate for pharmaceuticals, agrochemicals, and fine chemicals. Denaturant and octane booster. tert.-Butanol (pure) High-purity intermediate for pharmaceuticals, agrochemicals, and fine chemicals. Denaturant and octane booster View all Chemical Industry Ammonium Persulfate Stable persulfate for oxidation, etching, bleaching, or polymerization initiation. Potassium Persulfate Stable persulfate for oxidation, etching, bleaching, or polymerization initiation. Sodium Persulfate Stable persulfate for oxidation, etching, bleaching, or polymerization initiation. View all Related Markets Chemical Industry Efficiency and Operational Excellence for the Chemical Industry Coatings, Paints & Printing Evonik improves the performance of coatings, paints & printing market products Plastics & Rubber Building Blocks for more sustainable, innovative and efficient Plastics & Rubber