| Product Data Sheet | | | | Dowex Model HCR S/S is a gel type strongly acidic cation exchange resin of the sulphonated polystyrene type. IT is used for industrial water softening (in Na+ form) in co-flow regenerated units. Its principal characteristics are excellent physical, chemical and thermal stability stability, good ion exchange kinetics and high exchange capacity. |  | | Properties |
| | Matrix | styrene divinylbenzene | | Functional groups | sulphonates | | Physical form | beads | | Ionic form as shipped | Na+ | | Total exchange capacity | 1.9eq/L (Na+ form) | | Moisture holding capacity | 45 to 50 %(Na+ form) | | Shipping weight | 770 to 870g/L | | Specific gravity | 1.25 to 1.29(Na+ form) | | Particle size | | | Uniformity coefficient | <1.7 | | Fine contents | <0.315mm: 1.0% max | | Maximum reversible swelling | Na+ ---> H+: 10% | | Chemical resistance | Insoluble in dilute solutions of acids | | | or bases and common solvents |
| | | | Suggested Operating Conditions |
| | Minimum bed depth | 800mm | | Service Flow rate | 5 to 50 BV/h | | Regenerant | HCI H2SO4 Nacl | | Level (g/L) | 50 to 150 60 to 240 80 to 250 | | Concentration (%) | 5 to 8 0.7 to 6 10 | | Flow rate (BV/h) | 2 to 5 2 to 20 2 to 8 | | Minimum contact time | 30 min | | Slow rinse | 2BV at regeneration flow rate | | Fast rinse | 2 to 4 BV at service flow rate |
| | | Limits of Use
Dowex Model HCR S/S is suitable for industrial uses. For other specific applications such as pharmaceutical, food processing or potable water applications, it is recommended that all potential users seek advice from Rohm and Haas in order to determine the best resin choice and optimum operating conditions. |
<< BACK
|
