Specification Test Results

• Meets ACS Reagent Chemical Requirements:
  ≥98.0%
• For Laboratory,Research,or Manufacturing Use:
  7.7 - 8.1
• Assay ((NH₄)₂HPO₄) (by acidimetry):
  ≥98.0 %
• pH of 5% Solution at 25°C:
  7.7 - 8.1
• Insoluble Matter:
  ≤0.005 %
• Chloride (Cl):
  ≤0.001 %
• Nitrate (NO₃):
  ≤0.003 %
• Sulfate (SO₄):
  ≤0.01 %
• Heavy Metals (as Pb):
  ≤0.001 %
• Trace Impurities - Iron (Fe):
  ≤0.001 %
• Calcium (Ca):
  ≤0.001 %
• Magnesium (Mg):
  ≤0.0005 %
• Potassium (K):
  ≤0.005 %
• Sodium (Na):
  ≤0.005 %