Zinc Phosphate is a white , nonrefractive , corrosion inhibiting pigment used in protective coating systems . It is generally indentified as Zinc Phosphate Dihydrate.
| CAS.No. 7779-90-0 | Molecular formula Zn3(PO4)2 | Molecular weight 386.11 g/mol | Structure Zn3(PO4)2 |
| Technical name | Zinc Phosphate Dihydrate |
| Appearance | White Powder |
| Zinc as Zn | 50.5 - 52.0 |
| Phosphorous as PO43- | 47.0 - 49.0 |
| pH | 6.0 - 8.0 |
| Lead as Pb | Max. 10 ppm |
| Average particle size | 2.0 - 3.0 µ |
| Sieve residue 32 microns % | Max. 0.01 µ |
| Cadmium as Cd | Max. 10 ppm |