White crystalline powder
| Specification | Industrial grade | Low arsenic grade |
| Appearance | White C rystal | White C rystal |
| Total content % | ≥98 | ≥98 |
| P2O5 content % | ≥61 | ≥61 |
| N content % | ≥12 | ≥12 |
| Moisture % | ≤0.2 | ≤0.2 |
| Water insoluble matters % | ≤0.1 | ≤0.1 |
| Heavy metal ( base on Pb ) % | -- | ≤0.001 |
| As ( base on As ) % | -- | ≤0.0003 |
| Fluoride ( base on F ) % | -- | ≤0.005 |