Specification Test Results

• Appearance:
  White to light beige Crystalline powder
• Infrared spectrum:
  Conforms
• Loss on drying:
  ≤1 % (1 g, 60°C) (vacuum)
• Specific optical rotation:
  +28° to +32° (20°C, 589 nm) (c=1, 1 N NaOH) (on dried substance)
• Titration with NaOH:
  ≥98.5 % (On dried substance)
• Oxalate (C2O4):
  (limit about 0.05%) Passes test
• Phosphate (PO4):
  ≤0.001 %
• Sulfate (SO4):
  ≤0.002 %
• Iron (Fe):
  ≤3 ppm
• Lead (Pb):
  ≤2 ppm
• Insoluble matter:
  ≤0.005 %