... 3.Less dosage, low cost,saving 20-50% 4.COD,BOD remove 5. Organic Polyferric sulfate 1.CAS No. 10028-22-5 ... is up to 90%; 4, less dosage, low cost, saving 20 ~ 50%. Use: Widely used in domestic water, industrial water, industrial ... .0~ 3.02.0~ 3.0 Density( g/cm 3, 20°C ) > 1.45 Arsenic content, % ≤0.00080.0005 Lead content ... 25Kg. Net weight 200Kg plastic barrels of liquid Poly Ferric Sulfate PFS