| NO | Specifications | Food Grade | 
| 1 | Appearance | White powder | 
| 2 | P2O5% | 59.0-61.0 | 
| 3 | ,as As% | ≤0.0003 | 
| 4 | Heavy metals,as Pb% | ≤0.002 | 
| 5 | Fluoride,as F % | ≤ 0.001 | 
| 6 | PH | 6.0-9.0 | 
| Name of index | Fcc | 
| Conten(as P2O5),% | 59-61 | 
| Heavy metal | 15 ppm max. | 
| Ars | 3ppm max. | 
| Lead | 2 ppm max. | 
| Water insoluble substance,% | 1.0% | 
| fluoride,% | 0.001% | 
| viscosity | 6.5-15 | 
 
 
 
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