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X-5 is a broad-spectrum adsorption resin of the polystyrene family produced by a special process with uniform medium pore size and high specific surface area; together with AB-8 and CAD-40 it forms a small/medium/large pore-size series. X-5 is mainly used for extracting medium-pore-size substances and has been applied successfully to the purification of a wide range of products. International equivalents: Diaion HP10, HP20, HP40.
Product Introduction
X-5 is a broad-spectrum adsorption resin of the polystyrene family produced by a special process with uniform medium pore size and high specific surface area; together with AB-8 and CAD-40 it forms a small/medium/large pore-size series. X-5 is mainly used for extracting medium-pore-size substances and has been applied successfully to the purification of a wide range of products. International equivalents: Diaion HP10, HP20, HP40.
Typical Physical & Chemical Properties
| Appearance | White opaque beads | |
|---|---|---|
| Resin structure | PSt | |
| Polarity | Non-polar | |
| Moisture content | 65%~75% | |
| True density (wet) | 1.03~1.10g/ml | |
| Bulk density (wet) | 0.65~0.75g/ml | |
| Specific surface area | 500~600m3/g | |
| Average pore diameter | 29~30nm | |
| Porosity | 50%~60% | |
| Particle size range | 0.3~1.25mm≥90% | |
| Bed height | ≤3m | |
| Flow rate | 1~6m/h | |
| Organic impurity conc. (acetic acid, acetone, methanol, benzene, formic acid, etc.) | ＜1 | |
| pH | 4~6 | |
| Eluent | 1~2 N NaOH | Methanol or acetone |
| Dosage | 2~4BV | 2BV |
| Flow rate | ≤5m/h | ≤5m/h |
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.