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Items | Standards |
Assay (%) (Na2H2P2O7) | ≥95.00% |
P2O5 (%) | ≥63.00%,≤64.5% |
Fluoride(PPM) | ≤10mg/kg |
Cadmium(PPM) | ≤1mg/kg |
Substances not dissolved in water(%) | ≤1.0% |
PH value(%) | ≥3.7,≤4.5 |
Loss on drying | ≤0.5% |
Aluminum(PPM) | 200 |
Loss on burning(105℃)%≤ | 0.5 |
Storage | in dry and cool place |
Packing | 25 kg per bag |









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