Specification Test Results

• Assay (precipitative titration):
  ≥ 99,5 %
• In water insoluble matter:
  ≤ 0,01 %
• Free alkali (as NaOH):
  ≤ 0,04 %
• Free acid (as hydrofloric acid):
  ≤ 0,05 %
• Chloride (Cl):
  ≤ 0,01 %
• Hexafluorosilicate (SiF₆):
  ≤ 0,075 %
• Sulphate (SO₄):
  ≤ 0,01 %
• Sulphite (SO₃):
  ≤ 0,005 %
• Heavy metals (as Pb):
  ≤ 0,001 %
• Ca (Calcium):
  ≤ 0,004 %
• Cu (Copper):
  ≤ 0,0002 %
• Fe (Iron):
  ≤ 0,002 %
• K (Potassium):
  ≤ 0,02 %
• Loss on drying (150 °C, 4 h):
  ≤ 0,2 %