FS471 Chelation Resin


FS471 is a highly porous hybrid anion exchange resin infused with iron oxide for efficient, selective removal of arsenic. Porous beads enable maximum utilization of the infused iron. Superior bead strength prevents the creation of fines during loading and the service cycle. Pressure drop remains low and backwash is minimized, reducing water loss and preventing arsenic-laden fine discharge into the sewer.

Comply with WQA NSF/ANSI 61 Standard.



  • Selective removal of Arsenic


FS471 Selective removal of Arsenic Chelation Resin
Polymer StructurePorous polystyrene crosslinked with DVB
Functional GroupIron Oxide
Ionic FormFeO (OH-)
AppearanceSpherical Beads
Particle Size (mm)0.315-1.25 ≥95%
Note: Other particle size ranges are also available.
Uniformity Coefficient1.6 max.
Moisture Content55 -65%
Total Capacity (eq/l)Chelated As - 0.50 min.
Shipping Weight (g/l)800
Specific Density (g/ml)1.22
pH Range4.5 - 8.5
Temperature Limit80℃ max.

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