ITEM | Technical Grade | Food Grade |
Content as H3PO4% | 75.0/80.0/85.0 | 75.0/80.0/85.0 |
Chloride as Cl% | ≤0.0005 | / |
Sulphate as SO4% | ≤0.005 | / |
Heavy metal as Pb% | ≤0.001 | ≤0.0005 |
Colority | ≤20 | / |
Ars enic as As% | ≤0.005 | ≤0.00005 |
Reductive matter as H3PO3% | / | ≤0.012 |
Iron as Fe% | ≤0.002 | / |
Fluoride as F% | / | ≤0.001 |