The chemical Potassium persulfate has a designated molecular formula of K2O8S2 and a molecular weight of 270.309 g/mol. Synonyms may include: Anthion, Caswell No. 700, Dipotassium peroxydisulfate, Dipotassium persulfate, EINECS 231-781-8, EPA Pesticide Chemical Code 063602, HSDB 2638, Peroxydisulfuric acid (((HO)S(O)2)2O2) , dipotassium salt, Peroxydisulfuric acid (((HO)S(O)2)2O2), dipotassium salt, Potassium peroxydisulfate (ChemID).