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.
| 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 |
