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Orthoboric acid 99.8-100.5%, crystallised, AnalaR NORMAPUR® analytical reagent
 :  VWR Chemicals
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Orthoboric acid 99.8-100.5%, crystallised, AnalaR NORMAPUR® analytical reagent
 :  VWR Chemicals
 

 

  • Assay:
    99.8 - 100.5 %
  • Organic impurities:
    Passes test
  • Solution in water:
    Passes test
  • Heavy metals (as Pb):
    Max. 5 ppm
  • Insolubility in methanol:
    Max. 50 ppm
  • Insolubility in water:
    Max. 50 ppm
  • Non-esterifiable impurities:
    Max. 0.1 %
  • Non-volatile with methanol/HCl:
    Max. 0.05 %
  • NH4 (Ammonium):
    Max. 20 ppm
  • Cl (Chloride):
    Max. 3 ppm
  • PO4 (Phosphate):
    Max. 5 ppm
  • SO4 (Sulphate):
    Max. 5 ppm
  • As (Arsenic):
    Max. 0.5 ppm
  • Ca (Calcium):
    Max. 20 ppm
  • Cu (Copper):
    Max. 2 ppm
  • Fe (Iron):
    Max. 1 ppm
  • Mg (Magnesium):
    Max. 5 ppm
  • Pb (Lead):
    Max. 5 ppm