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Sodium disulfite
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| 产品编号 | 包装单位 | 单价(元) | 国内现货 | 国外库存 | 询价单 |
| 4058452 | 100 G | 383 | 2-5天 | 4-6周 | |
| 4058452 | 500 G | 795 | 2-5天 | 4-6周 | |
| 4058452 | 1 KG | 1170 | 2-5天 | 4-6周 | |
| 4058452 | 5 KG | 3720 | 2-5天 | 4-6周 | |
| 4058452 | 50 KG | 34600 | 2-5天 | 4-6周 |
产品别名
7681-57-4
Sodium disulfite
Sodium metabisulfite, Sodium pyrosulfite, Disulfite, Pyrosulfite
基本信息
| Empirical Formula【经验(实验)分子式】 | Na2O5S2 |
| Molecular weight | 190.11 |
| MDL number | MFCD00167602 |
| EC Index Number【EC索引号】 | 231-673-0 |
| Analysis Note【分析说明】 | Assay (iodometric): 98.0 - 100.5 % Identity: passes test Appearance of solution: passes test pH-value (5 %; water): 3.5 - 5.0 Insoluble matter: ≤ 0.005 % Chloride (Cl): ≤ 0.005 % Thiosulfate (S₂O₃): ≤ 0.05 % : passes test Heavy metals (as Pb): ≤ 0.001 % As (Arsenic): ≤ 0.0001 % Fe (Iron): ≤ 0.0005 % |
| 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 |
| grade【等级】 | ACS reagent |
| agency | reag. Ph. Eur. |
| Assay【测定】 | 98.0-100.5% (iodometric) |
| form【形式】 | powder |
| potency【效能】 | 1540 mg/kg LD50, oral (Rat) >2000 mg/kg LD50, skin (Rat) |
| pH【pH值(酸碱度)】 | 3.5-5 (20 ℃, 50 g/L in H2O) |
| mp | 150 ℃ (decomposition) |
| solubility【溶解性】 | 650 g/L |
| density | 2.36 g/cm3 at 20 ℃ |
| bulk density【堆积密度】 | 1000‑1200 kg/m3 |
| anion traces【痕量阴离子】 | chloride (Cl-): ≤0.005% thiosulfate (S2O32-): ≤0.05%passes test |
| cation traces【痕量阳离子】 | As: ≤ 0.0001% Fe: ≤ 0.0005% heavy metals (as Pb): ≤ 0.001% |
| storage temp.【储存温度】 | 2-30℃ |
| InChI | 1S/2Na.H2O5S2/c;;1-6(2)5-7(3)4/h;;(H,1,2)(H,3,4)/q2*+1;/p-2 |
| InChI key | LDTLADDKFLAYJA-UHFFFAOYSA-L |
安全信息
| Pictograms【象形图】 | GHS05,GHS07 |
| Signal word【警示用语：】 | Danger |
| Hazard Statements | H302 - H318 |
| Precautionary Statements | P264 - P270 - P280 - P301 + P312 - P305 + P351 + P338 - P501 |
| Hazard Classifications【危险分类】 | Acute Tox. 4 Oral - Eye Dam. 1 |
| Supp Hazards【补充剂危害】 | EUH031 |
| Storage Class Code【储存分类代码】 | 13 - Non Combustible Solids |
| WGK | WGK 1 |
