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