Specification Test Results

• Assay:
  99.5 - 100.5 %
• Appearance of solution (10 %; water):
  Clear and colourless
• IR Spectrum:
  Passes test
• Acidity:
  Max. 0.0005 meq/g
• Alkalinity:
  Max. 0.0005 meq/g
• Melting point:
  132 - 135 °C
• Biuret:
  Max. 0,1%
• Heavy metals (as Pb):
  Max. 4 ppm
• Ignition residue (SO₄):
  Max. 50 ppm
• Insolubility in water:
  Max. 30 ppm
• Loss on drying (100-105°C):
  Max. 1.0 %
• Cl (Chloride):
  Max. 5 ppm
• NH₄ (Ammonium):
  Max. 0.05 %
• SO₄ (Sulphate):
  Max. 10 ppm
• Cu (Copper):
  Max. 1 ppm
• Fe (Iron):
  Max. 1 ppm
• Pb (Lead):
  Max. 2 ppm
• Conforms to ACS:
  Passes test
• Conforms to Reag. Ph.Eur.:
  Passes test