... ,000 tonsper year, and 25,000 tons annually for Sodium Persulfate (SPS).1. Product info.Molecular Formula: Na2S2O8Molecular ... weight: 238.13 Sodium persulfateis a white,crystalline,odourless salt.It is used as ... semiconductors;cleaning and etching of printed circuits),activation of copper and aluminium surfaces.3,Cosmetics : Essential component of ...