半岛bd体育手机客户端 说明
一般描述
Sodium acetate trihydrate can be obtained from the crystallization of sodium acetate in water. On heating at 75℃, it melts, while on heating above 120℃ it loses water of crystallization and gets converted into anhydrous form. The hyperfine proton and13C splittings have been evaluated by recording ESR spectra of its irradiated single crystals. ESR studies suggested the existence of trapped methyl radicals. Its crystals are monoclinic and their structure has been investigated by photographic methods. Unit cell parameters were evaluated.
应用
Sodium acetate trihydrate may be used in the fabrication of silicone/sodium acetate trihydrate hybrid, a water-responsive shape memory hybrid.
其他说明
乙酸激酶的底物 (EC 2.7.2.1)
基本信息
| 线性分子式 | CH3COONa · 3H2O |
| 分子量 | 136.08 |
| Beilstein | 3732037 |
| EC 号 | 204-823-8 |
| MDL编号 | MFCD00071557 |
| PubChem化学物质编号 | 329752766 |
| NACRES | NA.21 |
半岛bd体育手机客户端 性质
| 质量水平 | 200 |
| 等级 | puriss. |
| 测定 | 99.0-101.0% (calc. to the dried substance) |
| 形式 | powder or crystals |
| 自燃温度 | 1112 °F |
| 质量 | meets analytical specification of Ph. Eur., BP, USP, FCC, E262 |
| 杂质 | organic volatile impurities, complies (GC) reducing matter, complies residual solvents, in accordance ≤0.00002% Al ≤0.001% heavy metals (as Pb) ≤0.002% KMnO4red. matter (as O) ≤0.1% KMnO4red. matter (as HCOOH) |
| 缺失 | 39.0-40.5% loss on drying, 130 ℃ |
| pH值(酸碱度) | 7.5-9.0 (20 ℃, 5%) |
| 痕量阴离子 | chloride (Cl-): ≤50 mg/kg sulfate (SO42-): ≤50 mg/kg |
| 痕量阳离子 | Al: ≤0.2 mg/kg As: ≤2 mg/kg Ca: ≤20 mg/kg Cu: ≤10 mg/kg Fe: ≤10 mg/kg Hg: ≤1 mg/kg K: ≤200 mg/kg Mg: ≤20 mg/kg Pb: ≤2 mg/kg Zn: ≤10 mg/kg |
| 适用性 | complies for appearance of solution |
| SMILES string | O.O.O.[Na+].CC([O-])=O |
| InChI | 1S/C2H4O2.Na.3H2O/c1-2(3)4;;;;/h1H3,(H,3,4);;3*1H2/q;+1;;;/p-1 |
| InChI key | AYRVGWHSXIMRAB-UHFFFAOYSA-M |
安全信息
| 储存分类代码 | 11 - Combustible Solids |
| WGK | WGK 1 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
Sigma-Aldrich
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