description
Molecular Formula：C6H5Na3O7 •2H2O | CAS No.: 6132-04-3 |
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Item | Unit | Quality Standards | Analysis Results |
Characters |
– | White or almost white, crystalline powder or granular crystals. Slightly deliquescent in moist air. Freely soluble in water, practically insoluble In ethanol |
Pass |
Identification | – | Pass Test | Pass |
Appearance of solution | – | Pass Test | Pass |
Assay | % | 99.0-100.5 | 99.5 |
Water | % | 11.0-13.0 | 12.23 |
Readily Carbonisable Substances | – | Pass Test | Pass |
Acidity or Alkalinity | – | Pass Test | Pass |
pH(5 % aqueous solution)PH (5%w/v) | – | 7.5-9.0 | 8.3 |
Sulfate | mg/kg | ≤50 | ＜50 |
Oxalate | mg/kg | ≤50 | ＜50 |
Chloride | mg/kg | ≤10 | ＜10 |
Iron | mg/kg | ≤5 | ＜5 |
Lead | mg/kg | ≤0.1 | ＜0.1 |
Arsenic | mg/kg | ≤0.1 | ＜0.1 |
Mercury | mg/kg | ≤0.1 | ＜0.1 |
Heavy Metals | mg/kg | ≤5 | ＜5 |
Tartrate | – | Pass Test | Pass |
Pyrogen | – | Pass Test | Pass |
The product is in conformity with BP/USP/FCC/E331/ENSIGN. | |||
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