Specification Test Results

• Appearance:
  White Crystalline powder or crystals
• Infrared spectrum:
  Conforms
• Loss on drying:
  ≤0.5 % (1 g, 105°C)
• Sulfated ash:
  ≤0.4 %
• TLC:
  ≤0.5 % of any individual impurity
• pH:
  5.5 to 6.5 (1 % in water)
• Specific optical rotation:
  +22.4° to +24.7° (20°C, 589 nm) (c=2, 6 N HCl)
• Titration with HClO4:
  98.0 to 102.0 % (on dried basis)
• Chloride (Cl):
  ≤500 ppm
• Sulfate (SO4):
  ≤300 ppm
• Iron (Fe):
  ≤30 ppm
• Heavy metals (as Pb):
  ≤15 ppm