Items | Standard |
Appearance | White crystal |
Total phosphorus(P) content, % | ≥22.0 |
Water-Soluble phosphorus, % | ≥20.0 |
Calcium Content(as Ca), % | ≥13.0 |
PH value | 3-4 |
Free water, % | ≤3.0 |
Fluorine(F), % | ≤0.18 |
Arsenic(As), % | ≤0.002 |
Lead(Pb), % | ≤0.003 |
Cadmium(Cd), % | ≤0.001 |
Chrome(Cr), % | ≤0.003 |
Mercury(Hg), % | ≤0.00001 |
Mesh size (Through0.2-1.5mm), % | ≤90 |