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SZSE:002741
Chemical Reagents
Sodium hydrogen sulfite COA Report
  • CAS No.:7631-90-5
  • Molecular weight:104.06
  • Molecular formula:NaHSO3
  • EC No.:231-548-0
Information
Specification category:
Product No. Product name specifications
1.01511.018 Sodium hydrogen sulfite  AR500g
1.01511.028 Sodium hydrogen sulfite  CP500g
1.01511.038 Sodium hydrogen sulfite  AR25kgdrum
1.01511.048 Sodium hydrogen sulfite  CP25kgdrum
1.01511.068 Sodium hydrogen sulfite  AR8kg×4
1.01511.078 Sodium hydrogen sulfite  CP1kgBottle
1.01511.088 Sodium hydrogen sulfite  Spec25kg/Sack
1.01511.088 Sodium hydrogen sulfite  Spec25kg/Sack
1.01511.108 Sodium hydrogen sulfite  AR10kg
Characteristic: Appearance and properties: white crystal powder. The smell of sulfur dioxide.
Relative density (water=1): 1.48(20℃)
Concentration: assay: technical grade≥99.5%.
Solubility: Soluble in water. Slightly soluble in ethanol、diethyl ether.
Technical indicators:
Item AR CP Assay(SO2) ≥58.5% ≥58.5% Clarity of solution Pass3 Pass5 Insoluble matter in water ≤0.005% ≤0.01% Chloride(Cl) ≤0.01% ≤0.02% Iron(Fe) ≤0.001% ≤0.002% Arsenic(As) ≤0.0001% ≤0.0002% Heavy metals(as Pb) ≤0.001% ≤0.002%
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