AB
AB-8 is a weakly polar styrene-type macroporous adsorption copolymer (crosslinker: divinylbenzene; monomer: methyl acrylate; porogen: toluene). It is suitable for the extraction, separation and purification of weakly polar water-soluble substances such as stevioside and alkaloids.
Product Introduction
AB-8 is a weakly polar styrene-type macroporous adsorption copolymer (crosslinker: divinylbenzene; monomer: methyl acrylate; porogen: toluene). It is suitable for the extraction, separation and purification of weakly polar water-soluble substances such as stevioside and alkaloids.
Typical Physical & Chemical Properties
| Appearance | Milky white opaque beads | |||||
|---|---|---|---|---|---|---|
| Polarity | Weakly polar | |||||
| Water retention | 65-75% | |||||
| Particle size range | (60–16 mesh) 0.3–1.25 mm ≥ 90% | |||||
| Average pore diameter | 13-14 nm | |||||
| Pore volume | 0.73-0.77ml/g | |||||
| Porosity | 42-46% | |||||
| Apparent density | 0.44-0.48g/ml | |||||
| Skeleton density | 1.13-1.17g/ml | |||||
| True density (wet) | 1.05-1.09g/ml | |||||
| Bulk density (wet) | 0.65-0.70g/ml | |||||
| Specific surface area | ≥480 m²/g | |||||
| Adsorption capacity | ≥ 45 mg/g (phenol, dry basis) | |||||
| Benzene | Toluene | Xylene | Divinylbenzene | Ethylstyrene | Diethylbenzene | |
| Net grade | ≤0.001% | ≤0.002% | ≤0.002% | ≤0.001% | ≤0.001% | ≤0.001% |
Handling, Storage & Loading Notes
Transport & storage: The resin contains water; keep the temperature between 5 and 40 °C during storage and transport to prevent freezing or mold. If the resin has dried out by exposure to air, do not add water directly (it will float) — soak it in ethanol to restore its wet state, then rinse thoroughly with clean water.
Feed quality: The adsorbate solution should be clarified and filtered before entering the column to keep impurities out and avoid acute poisoning of the resin.