Ion Exchange (IX) Resins

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Dow Dowex, Amberlite, Purolite, Alamo, and Other Resins

Ion exchange (IX) is the exchange of ions between a solid substance called a resin, and an aqueous solution such as potable, boiler feed, or industrial process water, to control water purity and pH by removing undesirable ions and replacing them with acceptable ones.

Cation exchange resins exchange and remove positive ions such as calcium (Ca+2) and Magnesium (Mg+2) hardness, Fe+2, and H+1. Anion exchange resins exchange and remove negative ions such as alkalinity, Cl-1, SO4-2, and OH-1.

Our world-class Dow Dowex, Amberlite, Purolite, Alamo, and other ion exchange resins serve applications as diverse as industrial water softening and demineralization, pharmaceuticals, sweetener purification, mining and more. Our ion exchange resins come in a variety of chemical compositions, polymer structures, and particle sizes to meet current and developing industry needs and requirements.

Applications Include:

  • Buildings & Institutions
  • Food & Beverage
  • Mining & Hydrometallurgy
  • Municipal
  • Oil & Gas
  • Power Generation
  • Industrial Water Treatment
  • Residential
  • Microelectronics
  • Healthcare
  • Chemical & Petrochemical


Water Tech also supplies pre-engineered ion exchange and softener systems in all sizes.

Please refer to our technical datasheets, or contact us for additional information.