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亚硫酸钠
Sodium sulfite
产品价格查看更多规格...
| 产品编号 | 包装单位 | 单价(元) | 国内现货 | 国外库存 | 询价单 |
| 4058203 | 500 G | 781 | |||
| 4058203 | 1 KG | 1140 | |||
| 4058203 | 5 KG | 3650 | |||
| 4058203 | 50 KG | 33960 |
产品别名
7757-83-7
亚硫酸钠
Sodium sulfite
结构式
基本信息
| Linear Formula【线性分子式】 | Na2SO3 |
| Molecular weight | 126.04 |
| MDL number | MFCD00003503 |
| EC Index Number【EC索引号】 | 231-821-4 |
| Analysis Note【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 % |
| Legal Information【法律信息】 | EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany |
产品性质
| Quality Level【质量水平】 | 300 |
| agency | reag. Ph. Eur. |
| Assay【测定】 | 97.0-100.5% (iodometric) |
| form【形式】 | powder |
| potency【效能】 | 2610 mg/kg LD50, oral (Rat) |
| pH【pH值(酸碱度)】 | 8.8-10 (20 ℃, 50 g/L in H2O) |
| mp | >500 ℃ (decomposition) |
| density | 2.63 g/cm3 at 20 ℃ |
| bulk density【堆积密度】 | 1480 kg/m3 |
| anion traces【痕量阴离子】 | chloride (Cl-): ≤0.02% thiosulfate (S2O32-): ≤0.1% |
| cation traces【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% |
| storage temp.【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
| Storage Class Code【储存分类代码】 | 13 - Non Combustible Solids |
| WGK | WGK 1 |
