产品介绍：
产品说明
分析说明
Assay (iodometric): 97.0 - 100.5 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 0.005 %
Free acid: passes test
Titrable free base: ≤ 0.03 meq/g
Chloride (Cl): ≤ 0.02 %
Thiosulfate (S₂O₃): ≤ 0.1 %
Heavy metals (as Pb): ≤ 0.0005 %
As (Arsenic): ≤ 0.0001 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.001 %
Pb (Lead): ≤ 0.0005 %
Se (Selenium): ≤ 0.0004 %
Zn (Zinc): ≤ 0.001 %
法律信息
EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany
基本信息
| 线性分子式 | Na2SO3 |
| 分子量 | 126.04 |
| MDL编号 | MFCD00003503 |
| EC索引号 | 231-821-4 |
产品性质
| 质量水平 | 300 |
| agency | reag. Ph. Eur. |
| 测定 | 97.0-100.5% (iodometric) |
| 形式 | powder |
| 效能 | 2610 mg/kg LD50, oral (Rat) |
| pH值(酸碱度) | 8.8-10 (20 ℃, 50 g/L in H2O) |
| mp | >500 ℃ (decomposition) |
| 密度 | 2.63 g/cm3 at 20 ℃ |
| 堆积密度 | 1480 kg/m3 |
| 痕量阴离子 | chloride (Cl-): ≤0.02% thiosulfate (S2O32-): ≤0.1% |
| 痕量阳离子 | As: ≤ 0.0001% Cu: ≤ 0.0005% Fe: ≤ 0.001% Pb: ≤ 0.0005% Se: ≤ 0.0004% Zn: ≤ 0.001% heavy metals (as Pb): ≤ 0.0005% |
| 储存温度 | 2-30℃ |
| SMILES string | [Na+].[Na+].[O-]S([O-])=O |
| InChI | 1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2 |
| InChI key | GEHJYWRUCIMESM-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 |
