Specification Test Results

• Appearance:
  White to almost white Crystalline powder
• Infrared spectrum:
  Conforms
• Loss on drying:
  ≤0.5 % (1 g, 105°C)
• Sulfated ash:
  ≤0.1 % (1 g)
• Appearance of solution:
  Clear and not more intensely coloured than reference solution Y7
• Specific optical rotation:
  -218° to -224° (20°C, 589 nm) (c=2, 1M HCl) (On dried substance)
• Titration:
  98.5 to 101.0 % (On dried substance)
• Sulfates:
  ≤300 ppm
• Chlorides:
  ≤200 ppm
• Ammonium (NH4):
  ≤200 ppm
• Iron (Fe):
  ≤10 ppm
• Ninhydrin-positive substances:
  Passes test