FA201 Strong Base Anion Macroporous, Type I


FA201 is a highly efficient and durable, Type I macroporous strong base anion exchange resin with quaternary ammonium as the functional group. Its macroporous structure provides high operating capacity and excellent regeneration efficiency and allows complete removal of all anions, including weakly dissociated ions such as silica. This structure with strong basicity also permits the removal of large size soluble organic molecules and imparts superior resistance to mechanical and osmotic shock.

FA201 is especially well suited for high flow rate and high temperature polishing applications. It is available in the chloride form or in the hydroxide form.


  • Industrial demineralization – High Flow Rates
  • Silica Removal
  • Uranium and Gold Mining
  • Decolorization and Demineralization of Sugar Syrup
  • Condensate Polishing


FA201 Strong Base Anion Resin Macroporous
Polymer StructureMacroporous polystyrene crosslinked with DVB
Functional GroupQuatemary Amine, Type I
Ionic FormCl- / OH-
AppearanceSpherical Beads
Particle Size (mm)0.315-1.25 ≥95%
Note: Other particle size ranges are also available.
Uniformity Coefficient1.6 max.
Moisture Content50-60% / 64-73%
Total Capacity (eq/l)1.15 min. / 0.90 min.
Shipping Weight (g/l)680 / 660
Specific Density (g/ml)1.08
Reversible Swelling, Cl-→OH-15% max.
pH Range0-14
Temperature Limit100℃ max. / 60℃ max.

If you are interested in our FA201 resin.