Specification Test Results

• Appearance:
  White to light beige Powder or granular powder
• Infrared spectrum:
  Conforms
• Loss on drying:
  ≤1.5 % (105°C)
• Titration with NaOH:
  97.5 to 102.5 % (On dried substance)
• Clarity of solution:
  (5% in water) Clear solution
• Residue after ignition:
  ≤0.2 %
• Specific optical rotation:
  -15° to -22° (20°C, 589 nm) (1% in water)
• Chloride (Cl):
  ≤100 ppm
• Sulfate (SO4):
  ≤500 ppm
• Iron (Fe):
  ≤20 ppm
• Heavy metals (as Pb):
  ≤20 ppm