Specification Test Results

• Assay (alkalimetric, calculated on dried substance):
  98.0 - 100.5 %
• Identity:
  passes test
• Appearance of solution:
  passes test
• Insoluble substances:
  ≤ 0.4 %
• pH-value (5 %; water):
  8.7 - 9.3
• Sodium Dihydrogene phospate (NaH₂PO₄):
  passes test
• Chloride (Cl):
  ≤ 0.0200 %
• Sulfate (SO₄):
  ≤ 0.0500 %
• Heavy metals (as Pb):
  ≤ 0.0010 %
• As (Arsenic):
  ≤ 0.0002 %
• Fe (Iron):
  ≤ 0.0020 %
• Residual solvents (ICH Q3C):
  excluded by manufacturing process
• Reducing substances:
  passes test
• Loss on drying (130 °C):
  45.0 - 49.0 %