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Item | Industrial Grade | |
First grade | Standard | |
Na2HPO4·12H20, %≥ | 97.0 | 96.0 |
Sulfate, (SO4)%≤ | 0.70 | 1.20 |
Oxide, (Cl)%≤ | 0.05 | 0.10 |
Water insoluble, %≤ | 0.05 | 0.10 |
Arsenic(As), %≤ | 0.005 | 0.005 |
Fluoride, (F)%≤ | 0.05 | 0.05 |
PH(10g/L) | 9.0±2 |
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