... , anion, non-ion and amphoteric ion type. Water Treatment ChemicalsPAMSpecs.Item Index N A C APAppearence White granulated powderEffective ... separation, metallurgy, chemical and food industries, etc.; the sewage treatment of iron and steel, textile, paper-making, chemical and ... filter aid, reinforcing agent in paper-making; the treatment and purification of urban sewage and potable water.Properties ...