Customization: | Available |
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CAS No.: | 7722-88-5 |
Formula: | Na4p2o7 |
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Property:White powder, easily soluble in water but insoluble in ethanol; Density at 2.45g/cm³ and melting point at 890ºC; Deliquescent in the open air. The water solution shows weak alkalinity and stable at 70ºC, but will be hydrolyzed into disodium phosphate when boiled.
Item | Standard | Result |
Content(Na4P2O7 )%≥ | 96.0 | 96.5 |
Phosphorus pentoxide(P2O5)%≥ | 51.5 | 51.8 |
PH value(1% water solution) | 9.9-10.7 | 10.2 |
Water-insoluble % ≤ | 0.1 | 0.08 |
Fluoride (F)% ≤ | 0.005 | 0.004 |
Lead% ≤ | 0.001 | 0.001 |
Arsenic (As)% ≤ | 0.0003 | 0.0003 |
Loss on burning% ≤ | 0.5 | 0.5 |
Item | Standard | Result |
Content(Na4P2O7 )%≥ | 96.5 | 96.7 |
Phosphorus pentoxide(P2O5)%≥ | 51.5 | 51.5 |
PH value(1% water solution) | 9.9-10.7 | 10.0 |
Water-insoluble % ≤ | 0.1 | 0.08 |
Fluoride (F)% ≤ | 0.005 | 0.002 |
Loss on burning% ≤ | 0.5 | 0.5 |