半岛bd体育手机客户端 说明
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 toxicitiesin vivo.
基本信息
| 线性分子式 | K2S2O5 |
| 分子量 | 222.32 |
| EC 号 | 240-795-3 |
| MDL编号 | MFCD00167605 |
| PubChem化学物质编号 | 57651772 |
| NACRES | NA.25 |
半岛bd体育手机客户端 性质
| 半岛bd体育手机客户端 线 | BioUltra |
| 质量水平 | 100 |
| 测定 | ≥97.0% (RT) |
| 杂质 | insoluble matter, passes filter test |
| pH值(酸碱度) | 2.5-4.5 (25 ℃, 0.1 M in H2O) |
| 溶解性 | H2O: 0.1 M at 20 ℃, clear, colorless |
| 痕量阴离子 | chloride (Cl-): ≤50 mg/kg |
| 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 |
| 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
| 象形图 |   |
| 警示用语： | Danger |
| 危险声明 | H318 - H335 |
| 预防措施声明 | P280 - P305 + P351 + P338 + P310 |
| 危险分类 | Eye Dam. 1 - STOT SE 3 |
| 靶器官 | Respiratory system |
| 补充剂危害 | EUH031 |
| 储存分类代码 | 11 - Combustible Solids |
| WGK | WGK 1 |
| 个人防护装备 | dust mask type N95 (US), Eyeshields, Gloves |
Sigma-Aldrich
m.cnreagent.com
