13471
亚硫酸钠
puriss., meets analytical specification of Ph. Eur., BP, NF, anhydrous, 95.0-100.0% (iodometric)
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线性分子式:
Na2SO3
化学文摘社编号:
分子量:
126.04
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-821-4
MDL number:
Assay:
95.0-100.0% (iodometric)
Form:
solid
InChI key
GEHJYWRUCIMESM-UHFFFAOYSA-L
InChI
1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2
SMILES string
[Na+].[Na+].[O-]S([O-])=O
grade
puriss.
assay
95.0-100.0% (iodometric)
form
solid
quality
meets analytical specification of Ph. Eur., BP, NF
impurities
residual solvents, complies, ≤0.001% heavy metals (as Pb), ≤0.05% thiosulfate (S2O3)
pH
9.0-10.5 (25 °C, 126 g/L)
anion traces
chloride (Cl-): ≤200 mg/kg
cation traces
Fe: ≤10 mg/kg, Se: ≤10 mg/kg, Zn: ≤10 mg/kg
suitability
complies for appearance of solution
Quality Level
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