Product Details
Products Description of Zinc Phosphate CAS#7779-90-0
Zinc Phosphate (CAS#7779-90-0) is an inorganic compound appearing as a white, odorless powder. It is a zinc salt derived from phosphoric acid, characterized by stable properties and very low solubility in water, with the molecular formula Zn₃(PO₄)₂ and a molecular weight of 422.12 g/mol. Widely used as an anti-corrosive agent, especially in primer coatings, it provides effective cathodic protection. It is also applied in dental cement and conversion coating treatments for metals including steel, aluminum and other alloys.
Physical and Chemical Properties:
State: SolidForm: Fine white powderOdor: OdorlessMelting Point: 912 °CSolubility: Nearly insoluble in water, but soluble in inorganic acids, ammonia solutions and ammonium salt systems
Zinc phosphate Chemical Properties
| Melting point | 900 °C (lit.) |
| density | 4.0 g/mL (lit.) |
| vapor pressure | 0Pa at 20℃ |
| solubility | H2O: insoluble(lit.) |
| form | Powder |
| color | White |
| Odor | Odorless |
| Water Solubility | Insoluble in water |
| Merck | 1,410,151 |
| Solubility Product Constant (Ksp) | pKsp: 32.04 |
| CAS DataBase Reference | 7779-90-0(CAS DataBase Reference) |
| EPA Substance Registry System | Trizinc phosphate (7779-90-0) |
Safety Information
| Hazard Codes | N |
| Risk Statements | 50/53 |
| Safety Statements | 60-61 |
| RIDADR | UN 3077 9/PG 3 |
| WGK Germany | 2 |
| RTECS | TD0590000 |
| TSCA | Yes |
| HazardClass | 9 |
| PackingGroup | III |
| Toxicity | LD50 intraperitoneal in mouse: 552mg/kg |
