产品说明
一般描述
Diatomaceous earth is made up of natural amorphous silica formed from the fossilized skeletons of diatoms. It is extracted, crushed, dried and calcined with flux material. DE is widely used as filler in construction materials, paints and as an anti-caking agent for agricultural chemicals. It has high water and oil absorption ability.
应用
Diatomaceous earth may be used as an adsorbent for column chromatography.
包装
5 kg in fiber drum
1 kg in poly bottle
注意
不适用于 cGMP 注射剂生产
法律信息
Celite is a registered trademark of Imerys Minerals California, Inc.
基本信息
| EC 号 | 293-303-4 |
| MDL编号 | MFCD00132803 |
| PubChem化学物质编号 | 329752265 |
| NACRES | SB.54 |
产品性质
| 质量水平 | 200 |
| 形式 | powder |
| 质量 | slightly calcined |
| 组成 | Al2O3, 3.3% CaO, 0.8% Fe2O3, 1.4% Na2O + K2O, 1.0% SiO2, 89.0% |
| technique(s) | ion chromatography: suitable |
| 缺失 | ~1.5% loss on ignition, 900 ℃ |
| 中值粒径 | ≤45.3 μm (82% (acc. to Cilas)) |
| pH值(酸碱度) | ~8.0 (25 ℃, 10% in aq. suspension) |
| SMILES string | O=[Si]=O |
| InChI | 1S/O2Si/c1-3-2 |
| InChI key | VYPSYNLAJGMNEJ-UHFFFAOYSA-N |
安全信息
| 象形图 |  |
| 警示用语： | Danger |
| 危险声明 | H372 |
| 预防措施声明 | P260 - P264 - P270 - P314 - P501 |
| 危险分类 | STOT RE 1 Inhalation |
| 靶器官 | Lungs |
| 储存分类代码 | 6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects |
| WGK | nwg |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
Sigma-Aldrich
m.cnreagent.com
