Products Description of Citric acid CAS#77-92-9
Zinc Phosphate (CAS#7779-90-0) is an inorganic substance presented as a white, odorless powder. It is a zinc-based salt originating from phosphoric acid, noted for its stable characteristics and very low water solubility. The formula of Zinc Phosphate is Zn3(PO4)2, with a molecular weight of 422.12 g/mole. It is widely applied as a corrosion-preventive agent, especially in primer coatings, due to its capability of offering cathodic protection. Additionally, it is used in dental cement formulations and in conversion coating treatments for metals such as steel, aluminum, and other alloys.
Physical and Chemical Properties:
State: Solid
Form: Fine white powder
Odor: None
Melting Point: 912 °C
Solubility: Nearly insoluble in water, yet 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 |
Environmental Exposure Considerations:
Care must be taken to prevent environmental discharge, as uncontrolled release may cause long-term harmful effects on aquatic ecosystems.
Storage and Handling:
Zinc Phosphate should be stored in a sealed container in a cool and dry environment, away from incompatible substances like strong acids and reducing agents. Containers should remain tightly closed and clearly labeled to ensure proper safety management. Disposal of residues and waste must follow applicable local and national regulations to reduce environmental hazards.
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