Specification Test Results

• Assay (MgSO₄·7H₂O) (by EDTA titrn):
  99.0 - 102.0 %
• Insoluble Matter:
  ≤0.005 %
• pH of 5% Solution at 25°C:
  5.0 - 7.0
• Nitrate (NO₃):
  ≤0.002 %
• Ammonium (NH₄):
  ≤0.002 %
• Calcium (Ca):
  ≤0.02 %
• Potassium (K):
  ≤0.005 %
• Sodium (Na):
  ≤0.005 %
• Strontium (Sr):
  ≤0.005 %
• Chloride (Cl):
  ≤5 ppm
• Trace Impurities - ACS - Heavy Metals (as Pb):
  ≤5 ppm
• Trace Impurities - Iron (Fe):
  ≤5 ppm
• Trace Impurities - Manganese (Mn):
  ≤5.0 ppm