Specification Test Results

• Meets ACS Reagent Chemical Requirements:
  98.0 - 102.0%
• For Laboratory,Research,or Manufacturing Use:
  99.0 - 100.5%
• Assay (AlK(SO₄)₂·12H₂O) (by EDTA titrn):
  98.0 - 102.0 %
• Assay (dried basis):
  99.0 - 100.5 %
• Insoluble Matter:
  ≤0.005 %
• pH of 5% Solution at 25°C:
  2.0 - 4.0
• Ammonium (NH₄):
  ≤0.005 %
• Trace Impurities - Iron (Fe):
  ≤0.001 %
• Sodium (Na):
  ≤0.02 %
• Chloride (Cl):
  ≤5 ppm
• Trace Impurities - ACS - Heavy Metals (as Pb):
  ≤5 ppm