... is an inorganic high molecular flocculant, is widely suitable for industrial sewage, such as metallurgy, pottery, coal dressing, papermaking, ... the leather, and petrochemical industry, etc, extensively, the sewage purification of urban life is dealt with and deal with ... , %≤ ≤0.5≤0.5PH(1% water solution)2.0-3.02.0-3.0WarehouseLaboratory Polyferric sulfate(SPFS/PFS) for drinking water treatment