基本信息
| 线性分子式 | Na2S2O3 · 5H2O |
| 分子量 | 248.18 |
| EC 号 | 231-867-5 |
| MDL编号 | MFCD00149186 |
| PubChem化学物质编号 | 329750194 |
| NACRES | NA.21 |
产品性质
| 等级 | puriss. |
| 质量水平 | 200 |
| 测定 | 99.0-100.5% (USP, dry basis) 99.0-101.0% (EP) |
| 形式 | crystalline |
| 质量 | meets analytical specification of Ph. Eur., BP, USP |
| 杂质 | residual solvents, complies ≤0.0005% heavy metals (as Pb) |
| 缺失 | 32-37% loss on drying, 16 h (vacuum) |
| pH值(酸碱度) | 6.0-8.4 (20 ℃, 10%) |
| 痕量阴离子 | sulfate, sulfite (as SO42-): ≤2000 mg/kg sulfide (S2-): in accordance |
| 痕量阳离子 | As: ≤3 mg/kg Ca: ≤50 mg/kg Fe: ≤10 mg/kg |
| 适用性 | complies for appearance of solution |
| SMILES string | O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=S |
| InChI | 1S/2Na.H2O3S2.5H2O/c;;1-5(2,3)4;;;;;/h;;(H2,1,2,3,4);5*1H2/q2*+1;;;;;;/p-2 |
| InChI key | PODWXQQNRWNDGD-UHFFFAOYSA-L |
安全信息
| 储存分类代码 | 13 - Non Combustible Solids |
| WGK | WGK 1 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
Sigma-Aldrich
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