Specification Test Results

• Assay:
  98.5 - 102.5 %
• Assay (calculated to the dried substance):
  98.5 - 101 %
• Assay of NaH₂PO₄ (calculated to dried substances):
  Max. 1.0 %
• Water (Karl Fischer):
  57.0 - 61.0 %
• Loss on drying (130°C):
  Max. 61.0 %
• Water insoluble matter:
  Max. 0.2 %
• pH (1 %,20°C):
  8.4 - 9.6
• Arsenic (As):
  Max. 1 ppm
• Cadmium (Cd):
  Max. 1 ppm
• Copper (Cu):
  Max. 0.002 %
• Iron (Fe):
  Max. 10 ppm
• Mercury (Hg):
  Max. 1 ppm
• Potassium (K):
  Max. 0.005 %
• Lead (Pb):
  Max. 1 ppm
• Zinc (Zn):
  Max. 0.001 %
• Heavy metals (as Pb):
  Max. 10 ppm
• Chloride (Cl):
  Max. 10 ppm
• Fluoride (F):
  Max. 10 ppm
• Sulfate (SO₄):
  Max. 100 ppm
• Appearance of the solution:
  complying
• Reducing impurities:
  complying
• Residual solvents:
  complying