SZSE:002741
Chemical Reagents
Potassium pyrosulfateCOA Report
  • CAS No.:7790-62-7
  • Molecular weight:254.32
  • Aliases:Potassium disulfate
  • Molecular formula:K2S2O7
  • EC No.:232-216-8
  • HS-No:28332980
Information
Specification category:
Product No. Product name specifications
1.01772.010 Potassium pyrosulfate AR500g
Characteristic: Appearance and properties: White odorless solid.
Relative density: 2.51(water=1)(25℃)
Melting point(℃): 325
Concentration: Pure
Solubility: Dissolve easily in water.Its aqueous solution is alkaline.
Technical indicators:
Item AR CP
Assay ≥98.0% ≥97.0%
Clarity of solution Pass Pass
Insoluble matter in water ≤0.01% ≤0.015%
Chloride(Cl) ≤0.001% ≤0.003%
Phosphate(PO4) ≤0.001% ≤0.0015%
Calcium and Magnesium(as Ca) ≤0.005% ≤0.01%
Iron(Fe) ≤0.001% ≤0.003%
Arsenic(As) ≤0.0003% ≤0.0005%
Heavy metals(as Pb) 0.0005% ≤0.002%
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