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SZSE:002741
Chemical Reagents
Potassium bromide COA Report
  • CAS No.:7758-02-3
  • Aliases:Potassium bromide 
  • Molecular formula:KBr
  • EC No.:231-830-3
  • HS-No:28275100
Information
Specification category:
Product No. Product name specifications
1.01706.020 Potassium bromide AR500g
1.01706.030 Potassium bromide CP500g
1.01706.040 Potassium bromide CP25kg/Drum
1.01706.080 Potassium bromide AR25kg/Drum
1.01706.090 Potassium bromide AR25kg/Sack
Characteristic: Appearance and properties: White crystal or powder,odourless,salty,slightly bitter and hygroscopic.
Relative density: 2.75(water=1)(25℃)
Melting point(℃): 730
Boiling point(℃): 1435
Concentration: Pure
Saturated vapour pressure(hPa): 1.3(795℃)
Solubility: Soluble in water and glycerol, slightly soluble in ethanol and aether.
Technical indicators:
Item AR CP
Assay(KBr) ≥99.0% ≥98.0%
pH value(50g/L solution,25℃) 5.5~8.5 5.5~8.5
Clarity of solution Pass2 Pass4
Insoluble matter in water ≤0.005% ≤0.01%
Chloride(Cl) ≤0.2% ≤0.5%
Bromate(BrO3) ≤0.001% ≤0.003%
Iodide(I) ≤0.005% ≤0.01%
Sulfate(SO4) ≤0.002% ≤0.005%
Total nitrogen(N) ≤0.001% ≤0.002%
Sodium(Na) ≤0.02% ≤0.05%
Magnesium(Mg) ≤0.0005% ≤0.002%
Calcium(Ca) ≤0.002% ≤0.005%
Iron(Fe) ≤0.0002% ≤0.0005%
Barium(Ba) ≤0.002% ≤0.005%
Heavy metals(as Pb) ≤0.0002% ≤0.0005%
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