Specification Test Results

• Assay (argentometric; calculated on dried substance):
  99.0 - 100.5 %
• Identity:
  passes test
• Appearance of solution:
  passes test
• Appearance of solution (JP):
  passes test
• Alkaline impurities:
  passes test
• Chloride, Bromide and Thiosulfate:
  passes test
• Cyanide (CN):
  passes test
• Iodate(IO₃):
  passes test
• Sulfate (SO₄):
  ≤ 0.005 %
• Thiosulfate (S₂O₃):
  passes test
• Thiosulfate and barium:
  passes test
• Total nitrogen (N):
  ≤ 0.001 %
• Heavy metals (as Pb):
  ≤ 0.001 %
• As (Arsenic):
  ≤ 0.0003 %
• Fe (Iron):
  ≤ 0.0002 %
• Na (Sodium):
  ≤ 0.1 %
• Residual solvents (Ph Eur/USP/ICH) class 3:
  ≤ 0.1 %
• Other residual solvents (Ph Eur/USP/ICH):
  excluded by manufacturing process
• Loss on Drying (105 °C):
  ≤ 0.5 %