Tetrasodium Pyrophosphate
Specifications
In food industry, used as quality improver, applied to can, fruit drinks, milk product, bean milk and so on.Specifications
Colourless or white crystals, or a white crystalline or granular powder, easily vaporize. It will loose water at 100
1,Formula :Na4P2O7 ;Na4P2O7·10H2O
2,Formula wt, anhydrous 265.90 Formula wt, decahydrate 446.06
3,CAS: anhydrous [7722-88-5]; CAS: decahydrate [13472-36-1]
4,Specificity: Colourless or white crystals, or a white crystalline or granular powder, easily vaporize. It will loose water at 100°C. It will melt at 985°C, easily melt in water, can not melt in ethyl alcohol. Aqueous is alkalescence.
5,Packing: 25kg net paper bag or 1mt big bag with PE liner.
Name of index |
HG 2923-1999 |
FCC-V |
Sodium Pyrophosphate (Na4P2O7) % |
96.5-100.5 |
95.0-100.5 |
Insoluble Substances ≤% |
0.2 |
0.2 |
PH (1% aqueous solution) |
9.9-10.7 |
10 |
Arsenic (As) ≤% |
0.0003 |
0.003 |
Heavy Metal ( Pb) ≤% |
0.001 |
- |
Fluoride ( F) ≤% |
0.005 |
0.005 |
Loss on lgnition ≤% |
0.5 |
0.5 |
Orthophosphate |
pass test |
- |
Lead ≤% |
0.0004 |
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