Weak Acid Cation Series
CR 29 Weak Acid Cation
Aldex CR 29 is an extremely durable macroporous resin containing iminodiacitic acid groups to polystyrene copolymer matrix. Aldex CR 29 is recommended for the ultra purification of brine required in the chloro-alkali industry deploying membrane cell process. Its high porosity and larger surface area give higher operating capacities.
Aldex CR 80 Technical Bulletin: English (PDF)
Aldex CR 80 Safety Data Sheets: English (PDF) | Français (PDF)
Physical Chemical Properties
| Polymer Structure: | Macroporous, cross-linked polystyrene |
| Functional Group: | Iminodiacetic acid |
| Ionic Form as Shipped: | Sodium |
| Physical Form: | Moist spherical beads |
| Particle Size (95% minimum): | 0.3 to 1.2 mm |
| pH Range: | 9 to 11 |
| Moisture Content: | 50% maximum |
| Solubility: | Insoluble in all common solvents |
| Backwash settled density: | 720 to 790 g/liter |
| Swelling (approx): | H+ to Na+ 35% |
| Thermal Stability: | 80ºC |
| Total Capacity (H+): | 2.0 meq/ml |
Backwash Characteristics
Safety Information
A material safety data sheet is available for Aldex CR 29. Copies can be obtained from Aldex Chemical Co., LTD. Aldex CR 29 is not a hazardous product and is not WHMIS controlled.
Caution: Acidic and basic regenerant solutions are corrosive and should be handled in a manner that will prevent eye and skin contact. Before using strong oxidizing agents in contact with ion exchange resin, consult sources knowledgeable in the handling of these materials.