... kind of inorganic polymer flocculant, 2. Polymeric ferric sulfate coagulation excellent performance, alum flowers dense, sedimentation speed ... ;(3) flocculant polymerization ferric sulfate purification effect is good, good water quality, do ... add soluble alum pool can use polymeric ferric sulfate.9, polymeric ferric sulfate should be stored in dry, moistureproof, ...