Specification Test Results

• Appearance:
  White Crystalline powder
• UV:
  at 260 nm A: ≤0.03
• pH:
  4.5 to 5.5 (5 % in water)
• Titration excess NaOH:
  ≥98.5 %
• Chloride (Cl):
  ≤5 ppm
• Nitrate (NO3):
  ≤10 ppm
• Phosphate (PO4):
  ≤5 ppm
• Arsenic (As):
  ≤1 ppm
• Cadmium (Cd):
  ≤1 ppm
• Calcium (Ca):
  ≤10 ppm
• Copper (Cu):
  ≤1 ppm
• Iron (Fe):
  ≤2 ppm
• Zinc (Zn):
  ≤1 ppm
• Heavy metals (as Pb):
  ≤5 ppm
• Insoluble matter:
  ≤0.005 %