Specification Test Results

• Assay (Na₂HPO₄) (by acidimetry):
  ≥99.0 %
• Insoluble Matter:
  ≤0.01 %
• Loss on Drying at 105°C:
  ≤0.2 %
• pH of 5% Solution at 25°C:
  8.7 - 9.3
• Chloride (Cl):
  ≤0.002 %
• Sulfate (SO₄):
  ≤0.005 %
• Heavy Metals (as Pb):
  ≤0.001 %
• Iron (Fe):
  ≤0.002 %