Specification Test Results

• Meets ACS Reagent Chemical Requirements:
  98.5 - 101.5%
• For Laboratory,Research,or Manufacturing Use:
  ≤0.01%
• Assay (Fe(NH₄)₂(SO₄)₂6H₂O) (by KMnO₄ titrn):
  98.5 - 101.5 %
• Insoluble Matter:
  ≤ 0.01 %
• pH of 5% Solution at 25°C:
  3.0 - 5.0
• Chloride (Cl):
  ≤ 0.001 %
• Phosphate (PO₄):
  ≤ 0.003 %
• Calcium (Ca):
  ≤ 0.005 %
• Copper (Cu):
  ≤ 0.003 %
• Ferric Ion (Fe³⁺):
  ≤ 0.01 %
• ACS - Magnesium (Mg):
  ≤ 0.002 %
• Manganese (Mn):
  ≤ 0.01 %
• Potassium (K):
  ≤ 0.002 %
• Sodium (Na):
  ≤ 0.02 %
• Zinc (Zn):
  ≤ 0.003 %