DuPont Dow Resin – Duolite A568 Ion Exchange Resin

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Food-grade, Weak Base Anion Exchange Resin

Duolite A568 Ion Exchange Resin is a highly porous, granular, weak base anion exchange resin based on crosslinked phenol formaldehyde formaldehyde polycondensate. Its hydrophilicity and controlled pore size distribution make it the most suitable resin to be used
as an enzyme carrier in many bioprocessing applications. The ionic strength, pore volume, pore size, and particle size of Duolite A568 are designed for optimum immobilization of enzymes used in the starch and fat (and other) industries.


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Manufacturer DuPont - Dow
Series Duolite Ion Exchange Resin
Model Number A568
Part Number A568
Description Typical Properties:
Physical Properties:
Copolymer - Crosslinked phenol-formaldehyde polycondensate
Matrix - Porous
Type - Weak base anion
Functional Group - Tertiary amine
Physical Form - Green-Fray, opaque, Granules
Nitrogen BET:
Total Pore Volume - 0.78-1 mL/g
Average Pore Diameter - 300-500 Å
Chemical Properties:
Ionic Form as Shipped - Free base (FB)
Total Exchange Capacity - ≥ 1.20 eg/L
Water Retention Capacity:
Fully Hydrated - 62-67%
As Delivered - 5.5-10.5%
Swelling - OH− → Cl− : 7%
Particle Density - 1.10-1.14 g/mL
Shipping Weight - 307 g/L

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