Used as an ion-exchange resin in water purification and wastewater treatment due to its strong anion-exchange capacity. Commonly applied in removing impurities, organic acids, and contaminants from industrial effluents and drinking water. Also utilized in pharmaceutical processes for separation and purification of active compounds. Its porous, cross-linked structure provides high stability and reusability in continuous flow systems like column chromatography. Suitable for recovery of valuable ions from process streams in chemical manufacturing.