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Zinc phosphate CAS#7779-90-0

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  • Zinc phosphate CAS#7779-90-0
  • Zinc phosphate CAS#7779-90-0
  • Zinc phosphate CAS#7779-90-0
  • Zinc phosphate CAS#7779-90-0
  • Zinc phosphate CAS#7779-90-0

›

Zinc phosphate CAS#7779-90-0

High Purity and Consistent Quality：Industrial-grade purity of ≥99% ensures reliable performance in coatings, pigments, and corrosion-protection applications.


Excellent Thermal Stability：High melting point (900 °C) and decomposition resistance make it suitable for high-temperature and industrial processing environments.


Superior Chemical Stability：Odorless, stable under normal conditions, with zero vapor pressure at 20 °C, providing safe handling and long shelf life.


Selective Solubility for Versatile Use：Practically insoluble in water and ethanol but soluble in inorganic acids and ammonia, enabling controlled reactivity and broad formulation compatibility.




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Product Description

Product Description of Zinc phosphate CAS#7779-90-0

Zinc Phosphate is a high-purity industrial chemical with a minimum purity of 99%. It is a white, odorless crystalline powder featuring superior thermal and chemical stability. It has a melting point of around 900 °C and decomposes when heated to boiling. At 20 °C, its vapor pressure is negligible, with a relative density of 3.99. Zinc Phosphate is practically insoluble in water and ethanol, but freely soluble in inorganic acids and ammonia solutions. It remains stable under normal storage and handling conditions, and should be kept away from strong acids and alkalis for chemical compatibility.


Product Application of Zinc phosphate CAS#7779-90-0

Zinc Phosphate is widely adopted as a key anticorrosion pigment in protective coating systems, frequently compounded with barium metaborate and strontium chromate. It is commonly formulated into thin wash primers and corrosion-inhibiting primers. In such systems, phosphate or chromate pigments are dispersed in synthetic polymer binders like vinyl chloride copolymers, delivering reliable surface protection and long-lasting corrosion resistance.

Product Information

Parameters


Melting point900 °C (lit.)
density4.0 g/mL (lit.)
vapor pressure0Pa at 20℃
solubilityH2O: insoluble(lit.)
formPowder
colorWhite
OdorOdorless
Water SolubilityInsoluble in water
Merck1410151
Solubility Product Constant (Ksp)pKsp: 32.04
InChIInChI=1S/2H3O4P.3Zn/c2*1-5(2,3)4;;;/h2*(H3,1,2,3,4);;;/q;;3*+2/p-6
InChIKeyLRXTYHSAJDENHV-UHFFFAOYSA-H
SMILES[Zn+2].[Zn+2].[Zn+2].P([O-])([O-])([O-])=O.P([O-])([O-])([O-])=O
CAS DataBase Reference7779-90-0(CAS DataBase Reference)
EPA Substance Registry SystemTrizinc phosphate (7779-90-0)


Safety Information


Hazard CodesN
Risk Statements50/53
Safety Statements60-61
RIDADRUN 3077 9/PG 3
WGK Germany2
RTECSTD0590000
TSCAYes
HazardClass9
PackingGroupIII
ToxicityLD50 intraperitoneal in mouse: 552mg/kg


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