Sodium tripolyphosphate STPP food additive phophate
Name of index |
Index |
Result |
Na5P3O10 % |
≥94 |
95.6 |
P2O5 % |
≥57 |
57.7 |
Substances not dissolved in water % |
≤0.03 |
0.02 |
As % |
≤0.0003 |
<0.0003 |
Fluorides % |
≤0.003 |
0.001 |
Chlorides % |
≤0.025 |
0.014 |
Pb % |
≤0.001 |
<0.001 |
Sulfates % |
≤0.4 |
0.2 |
Whiteness % |
≥90 |
90 |
PH value(1% of solution) |
9.5-10.0 |
9.7 |
Appearance |
White granular |
Measure up |
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