Weakly Basic Epoxy System Anion Exchange Resin
Model: 703# (Polyamine Weak Base) | Category: Ion Exchange Resin
Weak base anion exchange resin with polyamine groups, obtained by amination of a macroporous methyl acrylate copolymer with polyethylene polyamine.
Product Specifications
| Moisture Content (%) | 60 - 70 |
|---|---|
| Total Exchange Capacity (mmol/g, dry) | ≥ 9.0 |
| Wet Apparent Density (g/ml) | 0.65 - 0.80 |
| Wet True Density (g/ml) | 1.03 - 1.14 |
| Particle Size (0.315-1.25 mm) | ≥ 90 % |
| pH Range | 1 - 10 |
| Max. Use Temp. | OH⁻ form ≤ 100°C, Cl⁻ form ≤ 40°C |
| Transformation Inflation Rate | (OH⁻ → Cl⁻) ≤ 25 % |
Application Fields
Water treatment to remove Cr and SO₄²⁻ ions; refining of citric acid, streptomycin and malic acid; extraction of organic acids and decolorization; recovery of copper and silver ions.
Key Benefits
- Strong strength, small volume change, high mechanical strength
- Good chemical stability, anti-pollution and excellent oxidation resistance
- Originally designated 703#; equivalent to Amberlite IRA-68 and AP-9