Aldex Chelation Resin (CR) Series
CR 5 Boron Removal Media
Aldex CR 5 is a macroporous crosslinked polystyrene resin with a functional group of N-Methylglucamine. This resin is in ‘Free Base’ form. Aldex CR 5 removes Boron and its salts which is a major concern especially in certain Chemical Industries and Agriculture. This resin effectively removes boron and its salts over a wide pH Range in presence of other ions.
Aldex CR 5 Boron Removal Media Technical Bulletin: English (PDF)
Aldex CR 5 Safety Data Sheets: English (PDF) | Français (PDF)
Physical Chemical Properties
Polymer Structure: | Macroporous, cross-linked polystyrene |
Physical Form: | Spherical Beads |
Functional Group: | N-Methylglucamine |
Ionic Form as Shipped: | Free Base (FB) |
Sphericity: | 95% minimum |
Screen Size Range (U.S. Standard): | 16 to 50 mesh, wet |
Particle Size Range: | 0.3 to 1.2 mm ≥ 90 |
Uniformity Coefficient: | 1.6 maximum |
Reversible Swelling, FB to Cl- : | 25% maximum |
Specific Gravity, FB form: | 1.10 |
Moisture Retention, Free Base Form: | 45 to 55% |
Shipping Weight (approx.): | 670 to 730 g/l |
Total Exchange Capacity, Free Base Form: | ≥0.6 eq/l |
Temperature Limit: | 60°C (140°F) |
pH Range (operating): | 4 to 10 |
Boron capacity: | >2.5 gm B/lit |
Recommended Operating Conditions
Maximum Temperature: | 60°C |
Service Flow Rate: | 4 to 30 BV/h |
Regeneration: | Dependant on application |
Operating Capacity
The practical capacity of Aldex CR 5 is dependent on the flow rate passing through the resin column for different applications.
Regeneration
Regeneration is done with 4% HCl or 5% H2SO4.
There are several regeneration procedures and they are dependent on the application. Regeneration procedures may be obtained from Aldex Chemical Co., LTD.
Applications
This resin is highly efficient in removing targeted ion ‘Boron’ with a wide pH Range without affecting harmless ions like calcium, Bicarbonate, Chloride, sodium for certain applications. And resin works effectively at higher flow rates.
Safety Information
A material safety data sheet is available for Aldex CR 5. Copies can be obtained from Aldex Chemical Co., LTD. Aldex CR 5 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.