Specification Test Results

• Assay (alkalimetric):
  ≥98%
• Identity:
  Passes test
• Colour:
  ≤10 Hazen
• Residue on ignition (as SO₄) :
  ≤10 ppm
• Al (Aluminium):
  ≤0,050 ppm
• Ca (Calcium):
  ≤0,20 ppm
• Cu (Copper):
  ≤0,010 ppm
• Fe (Iron):
  ≤0,10 ppm
• K (Potassium):
  ≤0,10 ppm
• Mg (Magnesium):
  ≤0,050 ppm
• Na (Sodium):
  ≤0,50 ppm
• HPLC gradient suitability test (220, 254, 280 nm) chromophoric impurities based on 4'-hydroxyacetophenone:
  ≤10 ppm
• Chromophore purity:
  ≥99,999%