12619
焦亚硫酸钾
puriss., meets analytical specification of Ph.Eur., BP, NF, FCC, E224, 95.0-101.0% (iodometric), powder, 51.8-57.6% sulfur dioxide
别名:
偏硫代硫酸钾, 偏重亚硫酸钾
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About This Item
线性分子式:
K2S2O5
CAS号:
分子量:
222.32
EC 号:
MDL编号:
UNSPSC代码:
12352302
PubChem化学物质编号:
NACRES:
NA.21
方案:
95.0-101.0% (iodometric)
表单:
powder
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等级
puriss.
质量水平
方案
95.0-101.0% (iodometric)
表单
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 °C, 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字符串
[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
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警示用语：
Danger
危险声明
危险分类
Eye Dam. 1
补充剂危害
储存分类代码
11 - Combustible Solids
WGK
WGK 1
法规信息
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