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% |