Specification Test Results

• Appearance:
  White Crystalline powder
• Infrared spectrum:
  Conforms
• Melting point:
  237 to 245 °C
• Titration Complexometric:
  ≥98.5 %
• pH:
  (sat. soln. in water) Approx. 2 to 3
• Nitrate (NO3):
  ≤0.5 ppm
• Ammonium (NH4):
  ≤2 ppm
• Arsenic (As):
  ≤0.01 ppm
• Iron (Fe):
  ≤0.2 ppm
• Mercury (Hg):
  ≤5 ppb
• Heavy metals (as Pb):
  ≤1 ppm
• KMnO4-reducing substance:
  ≤2 ppm (as SO2)