AMBERLITE™ Ion Exchange Resins and Polymeric Adsorbents

AMBERLITE™ Ion Exchange Resins and Polymeric Adsorbents are available in a very wide range of chemical compositions and polymer structures and have been used for decades in a high-value applications including water treatment in industrial and power generation plants, drinking water, food processing, chemical processing, bioprocessing, and pharmaceutical formulations.


AMBERLITE™ IRN99 H Ion Exchange Resin is a nuclear-grade, very high capacity, gel, strong acid cation exchange resin, supplied in the H-form. It is intended for use in non-regenerable single bed or mixed bed nuclear systems which demand the ultimate in effluent purity, operating capacity, and resin life. The particle size of AMBERLITE IRN99 H resin is specifically designed to give an optimized balance of pressure drop, exchange kinetics, and resistance to separation from the anion exchange resin when used in a mixed bed. In BWR condensate polishing, AMBERLITE IRN99 H resin can help to achieve the lowest possible reactor water sulfate levels. The exceptionally high DVB crosslinker level of the resin gives it the best oxidative stability of any gel cation resin available, thus minimizing the release of sulfonic acid leachables. The very high total capacity of AMBERLITE IRN99 H resin, delivers another important benefit, not only in BWR condensate polishing, but also in other nuclear applications such as PWR steam generator blowdown treatment, PWR primary system CVCS resin beds, and even radioactive waste demineralizers. The high total cation exchange capacity can produce a 15 – 30% increase in operating throughput. Since the nuclear-grade resins from all these applications are generally disposed of as radwaste, high capacity and long resin bed life are critical to minimizing radwaste disposal cost and volume. Longer bed life also brings significant operational benefits such as fewer bed change-outs, less resin handling, and fewer chances for radiation exposure.

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Used In:

  • Cation component of BWR condensate polishing mixed beds
  • Primary water chemistry control in PWR nuclear power operations
  • Decontamination of radioactive circuits
  • Control of Li-7 content of the reactor coolant


  • Very high capacity and oxidative stability
  • Optimized balance of pressure drop and exchange kinetics
  • Non-separating when used in mixed beds


  • Asia Pacific
  • Europe
  • Latin America
  • North America