Specification Test Results

• Assay:
  Min. 99.5 %
• Assay (calculated to the dried substance):
  99.0 - 101.0 %
• Water insoluble matter:
  Max. 0.005 %
• Loss on drying (105°C, 3h):
  Max. 0.2 %
• pH (5 %, 25 °C):
  5-8
• Acid. or alk. react. impurities:
  complying
• Free acid (as HCl):
  Max. 0.003 %
• Free alkali (as KOH):
  Max. 0.003 %
• Aluminium (Al):
  Max. 1 ppm
• Barium (Ba):
  Max. 0.001 %
• Calcium (Ca):
  Max. 0.001 %
• Iron (Fe):
  Max. 2 ppm
• Magnesium (Mg):
  Max. 0.0005 %
• Sodium (Na):
  Max. 0.02 %
• Heavy metals (as Pb):
  Max. 5 ppm
• Mg, earth alkali metals (as Ca):
  Max. 200 ppm
• Bromide (Br):
  Max. 0.01 %
• Iodide (I):
  Max. 0.002 %
• Iodide (I) test:
  complying
• Phosphate (PO₄):
  Max. 0.0005 %
• Sulfate (SO₄):
  Max. 20 ppm
• Total N:
  Max. 0.001 %
• Appearance of the solution:
  complying