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焦亚硫酸钾
Potassium disulfite
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 |
| 3190137 | 250 G | 448 |
产品别名
16731-55-8
焦亚硫酸钾
Potassium disulfite
Potassium pyrosulfite
Potassium metabisulfite
偏重亚硫酸钾
偏硫代硫酸钾
结构式
基本信息
| Linear Formula【线性分子式】 | K2S2O5 |
| Molecular weight | 222.32 |
| EC number【EC 号】 | 240-795-3 |
| MDL number | MFCD00167605 |
| PubChem Substance ID【PubChem化学物质编号】 | 57651772 |
| NACRES | NA.25 |
| Application【应用】 | Potassium disulfite (Potassium metabisulfite) may be use to study is antioxidant effects and ability to preserve food. Potassium disulfite may be used as an inhibitor of yeasts, bacteria, and fungi growth. Potassium metabisulfite may be used to study its potential toxicities in vivo. |
产品性质
| product line【产品线】 | BioUltra |
| Quality Level【质量水平】 | 100 |
| Assay【测定】 | ≥97.0% (RT) |
| impurities【杂质】 | insoluble matter, passes filter test |
| pH【pH值(酸碱度)】 | 2.5-4.5 (25 ℃, 0.1 M in H2O) |
| solubility【溶解性】 | H2O: 0.1 M at 20 ℃, clear, colorless |
| anion traces【痕量阴离子】 | chloride (Cl-): ≤50 mg/kg |
| cation traces【痕量阳离子】 | Al: ≤5 mg/kg As: ≤0.1 mg/kg Ba: ≤5 mg/kg Bi: ≤5 mg/kg Ca: ≤10 mg/kg Cd: ≤5 mg/kg Co: ≤5 mg/kg Cr: ≤5 mg/kg Cu: ≤5 mg/kg Fe: ≤5 mg/kg Li: ≤5 mg/kg Mg: ≤5 mg/kg Mn: ≤5 mg/kg Mo: ≤5 mg/kg Na: ≤1000 mg/kg Ni: ≤5 mg/kg Pb: ≤5 mg/kg Sr: ≤5 mg/kg Zn: ≤5 mg/kg |
| absorption【吸光度】 | cut-off at 308 nm in H2O at 0.1 M |
| SMILES string | [K+].[K+].[O-]S(=O)S([O-])(=O)=O |
| InChI | 1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2 |
| InChI key | RWPGFSMJFRPDDP-UHFFFAOYSA-L |
安全信息
| Pictograms【象形图】 | GHS05,GHS07 |
| Signal word【警示用语：】 | Danger |
| Hazard Statements | H318 - H335 |
| Precautionary Statements | P280 - P305 + P351 + P338 + P310 |
| Hazard Classifications【危险分类】 | Eye Dam. 1 - STOT SE 3 |
| Target Organs【靶器官】 | Respiratory system |
| Supp Hazards【补充剂危害】 | EUH031 |
| Storage Class Code【储存分类代码】 | 11 - Combustible Solids |
| WGK | WGK 1 |
| Personal Protective Equipment【个人防护装备】 | dust mask type N95 (US), Eyeshields, Gloves |
