1.Potassium Persulfate 99% 2.Molecular formula: K 2 S 2 O 8 3.Molecular weight: 270.31 Potassium persulfate Molecular formula: K 2 S 2 O 8 Molecular weight: 270.31 Structural formula: Characteristics: Potassium persulfate is a white, crystalline, odourless salt. It is used as initiator for the polymerisation of monomers and as a strong oxidizing agent in many application. It has the particular ...