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| Name of index | Index | Actual index |
Na2H2P2O7 % | ≥95.0 | 96.2 |
Substances not dissolved in water % | ≤1.0 | 0.02 |
PH value | 3.5-4.5 | 4.1 |
Heavy metal (Pb) % | ≤0.0015 | <0.001 |
Fluorides (F) % | ≤0.005 | <0.001 |
As % | ≤0.0003 | <0.0003 |
Appearance | White Powder | Measure up |
Result : First Grade
sodium acid pyrophosphate