Specification Test Results

• Appearance:
  White Crystalline powder
• Infrared spectrum:
  Conforms
• Loss on drying:
  ≤0.5 % (105°C, 3 h)
• Sulfated ash:
  ≤0.2 %
• pH:
  6.5 to 7.5 (10 % w/v in water)
• Titration with HClO4:
  ≥98.5 % (on dry substance)
• Chloride (Cl):
  ≤400 ppm
• Sulfate (SO4):
  ≤480 ppm
• Ammonium (NH4):
  ≤1000 ppm
• Iron (Fe):
  ≤30 ppm
• Arsenic oxide (As2O3):
  ≤2 ppm
• Heavy metals (as Pb):
  ≤10 ppm
• Other amino acids:
  (TLC) Passes test (not detectable on 10 µg spotting)