亚硫酸钠，Sodium sulfite；puriss., meets analytical specification of Ph. Eur., BP, NF, anhydrous, 95.0-100.0% (iodometric)

质量水平

100

等级

puriss.

测定

95.0-100.0% (iodometric)

形式

solid

质量

meets analytical specification of Ph. Eur., BP, NF

杂质

residual solvents, complies
≤0.001% heavy metals (as Pb)
≤0.05% thiosulfate (S₂O₃)

pH值（酸碱度）

9.0-10.5 (25 °C, 126 g/L)

痕量阴离子

chloride (Cl^-): ≤200 mg/kg

痕量阳离子

Fe: ≤10 mg/kg
Se: ≤10 mg/kg
Zn: ≤10 mg/kg

适用性

complies for appearance of solution

SMILES string

[Na+].[Na+].[O-]S([O-])=O

InChI

1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2

InChI key

GEHJYWRUCIMESM-UHFFFAOYSA-L