Specification Test Results

• Appearance:
  White Crystalline powder or crystals
• Infrared spectrum:
  Conforms
• Loss on drying:
  ≤1 % (140°C, 3 h)
• Sulfated ash:
  ≤0.1 %
• UV transmittance:
  ≥95 % (c=10, H2O, 430 nm) 1 cm cell
• Titration with HClO4:
  97.5 to 102.5 %
• Chloride (Cl):
  ≤200 ppm
• Sulfate (SO4):
  ≤200 ppm
• Ammonium (NH4):
  ≤200 ppm
• Iron (Fe):
  ≤20 ppm
• Heavy metals (as Pb):
  ≤10 ppm