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分子筛, 3?
规格或纯度:
≥100目,气相、液相色谱柱专用
- CAS编号: 308080-99-1
- 分子式: KnNa12-n[(AlO2)12(SiO2)12] · xH2O
- MDL号: MFCD00147627
- PubChem编号: 19758701
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基本描述
| 规格或纯度 | ≥100目,气相、液相色谱柱专用 |
|---|---|
| 英文名称 | Molecular sieves, 3? |
| 别名 | 3A分子筛; |
| 英文别名 | Molecular Sieve UOP Type 3? |
| 储存温度 | 充氩 |
| 运输条件 | 常规运输 |
| 产品介绍 |
其孔径约为3埃。适用于气体和液体的干燥，烃的脱水。可广泛应用于石油裂解气，乙烯，丙烯及天然气的深度干燥。加入黏合剂后可塑合成条状或球状。一种多水合硅铝酸盐的微孔吸附剂，人工合成泡沸石。有吸湿性。溶于强酸或强碱并分解，不溶于水和有机溶剂。有效孔径0.32nm。有刺激性。 Molecular sieves are crystalline metal aluminosilicates having a 3-dimensional interconnecting network of silica and alumina tetrahedra. Natural water of hydration is removed from this network by heating to produce uniform cavities which selectively adsorb molecules of a specific size. The 3A form is made by substituting potassium cations for the inherent sodium ions of the 4A structure, reducing the effective pore size to ~3?, excluding diameter >3?, e.g., ethane. The 4 to 8-mesh type is normally used in gas-phase applications. Molecular sieves are considered a universal drying agent in polar and nonpolar media. |
名称和标识符
| IUPAC Name | aluminum;sodium;dioxido(oxo)silane |
|---|---|
| INCHI | InChI=1S/Al.Na.2O3Si/c;;2*1-4(2)3/q+3;+1;2*-2 |
| InChi Key | URGAHOPLAPQHLN-UHFFFAOYSA-N |
| Canonical SMILES | [O-][Si](=O)[O-].[O-][Si](=O)[O-].[Na+].[Al+3] |
| 分子式 |
KnNa12-n[(AlO2)12(SiO2)12] · xH2O |
| PubChem CID | 19758701 |
化学和物理性质
| 溶解性 | Insoluble in cold water, hot water, methanol, diethyl ether, n-octanol and acetone. |
|---|---|
| 敏感性 | 对湿度敏感 |
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产品问答
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