... ,water-treatment chemicals 1.Identification:Product name:Phosphorous acid 99 in chemicalCAS No.: 13598-36-2EC No.: 233-663-1Molecular ... (decomposing at 180°C) 2.Application:Phosphorous acid is used in synthesis of phosphite salts, plastic stabilizers, pesticides, water-treatment chemicals ... double PE inner bags, 20~25mt/20' FCL2) 500, 1000kgs/jumbo bag, 20mt/20' FCL3) Iron drum or Plastic drum5.MSDS ...