RSM-25

Radium Selective, Strong Acid Cation Exchange Resin, Macroporous, Highly Crosslinked, Sodium Form

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ResinTech RSM-25 is a sodium form macroporous strong acid cation resin. It is WQA Gold Seal Certified for use with potable water. Its high crosslinking results in very high selectivity for radium on a one-time use basis. It does not contain barium, is pH agnostic, and does not require a minimum sulfate concentration. RSM-25 is intended for radium removal from otherwise potable waters that contain modest concentrations of hardness ions such as calcium.

Applications
  • Radium Reduction

  • Loading Formula (Radiation)

Typical Properties

SKU RSM-25
Polymer Matrix Styrenic Macroporous
Ionic Form Sodium
Functional Group Sulfonic Acid
Physical Form Spherical Beads
Color Tan to Brown
Particle Size 16 to 50 US Mesh (297 - 1190 μm)
Minimum Sphericity 95%
Uniformity Coefficient 1.6
Reversable Swelling Na → Ca 3% to 5%
Temperature Limit 250°F (121°C)
Total Exchange Capacity (meq/mL) 1.8
Moisture Retention 45% to 55%
Shipping Weight 48 - 50 lbs/ft³ (769 - 801 g/L)
REACH Registered YES
Regenerability TRUE

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