... materials, excluding: anthracite, bone charcoal, titanium oxide, polypropylene, polyvinyl chloride, iodine resin, electrolytic cell, electrode products) Activated carbon, activated ... 1Water Flocculants, Water coagulant PAC (basic aluminium chloride, aluminum chlorohydrate), ferric sulfate, ferrous sulfate, ferric chloride, aluminum chloride, aluminum sulfate (alum), polyacrylamide, sodium silicate ...