Specification Test Results

• Assay (calculated to the dried substance):
  98.5 - 101.0 %
• Assay of NaH₂PO₄ (calculated to dried substances):
  Max. 1.0 %
• Loss on drying (130°C):
  19.5 - 21.0 %
• pH (1 %,20°C):
  9.0 - 9.4
• Arsenic (As):
  Max. 2 ppm
• Iron (Fe):
  Max. 10 ppm
• Heavy metals (as Pb):
  Max. 10 ppm
• Chloride (Cl):
  Max. 50 ppm
• Sulfate (SO₄):
  Max. 0.01 %
• Appearance of the solution:
  complying
• Reducing impurities:
  complying
• Residual solvents:
  complying