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 | 329749774 |
NACRES | NA.21 |
产品性质
等级 | puriss. |
质量水平 | 100 |
测定 | 95.0-101.0% (iodometric) |
形式 | powder |
质量 | meets analytical specification of Ph.Eur., BP, NF, FCC, E224 |
杂质 | organic volatile impurities, complies (GC) residual solvents, in accordance ≤0.001% heavy metals (as Pb) ≤0.08% thiosulfate (S2O3) 51.8-57.6% sulfur dioxide |
pH值(酸碱度) | 3.5-4.5 (20 ℃, 5%) |
痕量阴离子 | chloride (Cl-): ≤100 mg/kg |
痕量阳离子 | As: ≤2 mg/kg Cu: ≤20 mg/kg Fe: ≤10 mg/kg Hg: ≤1 mg/kg Pb: ≤2 mg/kg Se: ≤5 mg/kg Zn: ≤20 mg/kg |
适用性 | in accordance for appearance of solution |
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 |