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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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