Specification Test Results

• Assay:
  Min. 98.0 %
• Appearance:
  Colourless crystals
• pH (25°C; 5 %):
  6.7 - 7.3
• Heavy metals (as Pb):
  Max. 2 ppm
• Ignition residue (SO₄):
  Max. 100 ppm
• Insolubility in water:
  Max. 50 ppm
• Substances reducing KMnO₄ (as HCOOH):
  Max. 50 ppm
• Water:
  Max. 2.0 %
• Cl (Chloride):
  Max. 5 ppm
• NO₃ (Nitrate):
  Max. 10 ppm
• SO₄ (Sulphate):
  Max. 10 ppm
• Ca (Calcium):
  Max. 10 ppm
• Cd (Cadmium):
  Max. 0.5 ppm
• Cu (Copper):
  Max. 0.5 ppm
• Fe (Iron):
  Max. 2 ppm
• Ni (Nickel):
  Max. 0.5 ppm
• Pb (Lead):
  Max. 0.5 ppm
• Zn (Zinc):
  Max. 0.5 ppm
• Conforms to ACS:
  Passes test
• Conforms to Reag. Ph.Eur.:
  Passes test