강산성 benzenesulfonic 양이온 교환기, exchange capacity 1.0 meq/g, base material polystyrene-divinylbenzene copolymer, pHstability 1–14
구형 입자, 45 μm 및 85 μm (standard) 사이즈, pore size 65–75 Å, very large specific surface 800 m2/g, pore volume 1.4 cm3/g, RP capacity 300 mg/g (caffeine in water)
