Sodium pyrophosphate 7722-88-5 DIPHOSPHORIC ACID TETRASODIUM SALT;DIPHOSPHORIC ACID, TETRASODIUM SALT, DECAHYDRATE;DECAHYDRATE TETRASODIUM PYROPHOSPHATE;TETRA-SODIUM DIPHOSPHATE;TETRA-SODIUM DIPHOSPHATE-10-HYDRATE;TETRA-SODIUM DIPH
PROPERTY |
SPECIFICATION |
RESULTS |
Main content [asP2O5] % |
≥68.5 |
68.9 |
As content% |
0.003 |
0.002 |
Fluorides % |
0.0005 |
0.0001 |
Heavy metals(as Pb) |
0.0001 |
0.0001 |
Insoluble matter in water% |
0.1 |
0.1 |
Conclusion: First Quality |
Food grade specification:
Name of index |
Index |
Result |
ASSAY% |
≥95 |
95.6 |
P2O5% |
65 |
65.5 |
Substances not dissolved in water % |
≤1.0 |
0.8 |
As% |
≤0.0002 |
<0.0002 |
Fluorides% |
≤0.003 |
0.001 |
Pb% |
≤0.001 |
0.0008 |
PH value(1% of solution) |
6.0-9.0 |
7.5 |
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