中文名称 | 螯合树脂 (Sodium Form) |
英文名称 | Chelex 100 (Sodium Form, 50-100 mesh) |
CAS识别号 | 11139-85-8 |
MDL识别号 | MFCD00081840 |
EC识别号 | Null,without related properties. |
Beilstein | Null,without related properties. |
分子式 | Null,without related properties. |
分子量 | Null,without related properties. |
分子结构图 | |
产品性状 | Null,without related properties. |
质量标准 | USAGE: Product is autoclavable in sodium form. It has a maximum operating temperature of 75°C and is not soluble in water. Binding is a function of pH. Absorption is very low below pH 2 and increases sharply from pH 2 to 4. It reaches a maximum above pH 4. Optimum binding for many divalent cations is at pH 6.5 or higher.1 Its selectivity for divalent over monovalent ions is approximately 5000 to 1, and it has a very strong attraction for transition metals, even in highly concentrated salt solutions. Actual selectivity values for any particular system depend on the pH, ionic strength, and presence of other complex-forming species. Metals can be removed using either the batch or column technique, although the column technique is more efficient. With 50-100 mesh, rapid flow rates are obtained and large volumes of solution can be processed in very little time. Resin can be regenerated by washing in the following sequence: 2 bed volumes of 1 N HCl, 5 bed volumes water, 2 bed volumes of 1 N NaOH, 5 bed volumes water. |
储存条件 | 常温密封避光保存,Stored in cool, dry and airproof. |