Molecular formula: (NH4)2S2O8 Molecular weight: 228.20 Characteristics: Ammonium 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 advantage of being almost non-hygroscopic, of having a particularly good storage stability as a result of its extremely high purity and of being easy and safe to handle. Assay 98.5%MIN Active oxygen 6.91%MIN Residue after ignition 0.02%MAX Chloride and chlorate 0.001%MAX Manganese 0.00005%MAX Iron 0.0005%MAX Heavy metals 0.0005%MAX Moisture 0.10%MAX . 25 kgs pp woven bag.