Specification Test Results

• Assay:
  99 - 105.0 %
• pH (5 %, 25 °C):
  4.5 - 8.0
• Water insoluble matter:
  Max. 0.01 %
• Acidity or alkalinity:
  complying
• Aluminium (Al):
  Max. 0.0001 %
• Arsenic (As):
  Max. 1 ppm
• Barium (Ba):
  Max. 0.005 %
• Cadmium (Cd):
  Max. 5 ppm
• Cobalt (Co):
  Max. 0.005 %
• Copper (Cu):
  Max. 5 ppm
• Iron (Fe):
  Max. 0.0005 %
• Potassium (K):
  Max. 0.005 %
• Magnesium (Mg):
  Max. 0.005 %
• Sodium (Na):
  Max. 0.005 %
• Nickel (Ni):
  Max. 0.005 %
• Lead (Pb):
  Max. 5 ppm
• Strontium (Sr):
  Max. 0.01 %
• Zinc (Zn):
  Max. 0.0005 %
• Mg and alkali salts (SO₄):
  Max. 0.5 %
• Heavy metals (ICP) ACS:
  Max. 5 ppm
• Ammonium (NH₄):
  Max. 0.005 %
• Nitrate (NO₃):
  Max. 0.002 %
• Sulfate (SO₄):
  Max. 0.005 %
• Oxidizing substances (as NO₃):
  Max. 0.003 %
• Appearance of the solution:
  complying
• Colour of the solution:
  complying
• Turbidity:
  Max. 3.5 NTU