DuPont Dow Resin – AmberLite PWA7 Ion Exchange Resin

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Drinking Water-grade Resin for Selective Chromate Removal

AmberLite PWA7 Ion Exchange Resin is an anion exchange resin designed for the removal of chromate from drinking water. Its high capacity makes AmberLite PWA7 the perfect choice for a simple, once-through, chromate removal process for municipal water treatment systems.




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Manufacturer DuPont - Dow
Series AmberLite Ion Exchange Resin
Model Number PWA7
Part Number PWA7
Description Typical Properties:
Physical Properties:
Copolymer Styrene-divinylbenzene
Matrix Gel
Type Strong acid cation
Functional Group Sulfonic acid
Physical Form White to amber, translucent, spherical beads
Volume Ratio 38-44%
Chemical Properties
Ionic Form as Shipped Na+
Total Exchange Capacity ≥ 2.2 eq/L
Water Retention Capacity 38 – 45%
Particle Size
Particle Diameter 350 ± 50 μm
< 300 μm ≤ 1.1%
> 1180 μm ≤ 0.5%
Shipping Weight 830 g/L

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