Zinc Phosphate (CAS 7779-90-0)


Zinc Phosphate (CAS 7779-90-0)

Zinc phosphate is an inorganic compound with the formula Zn3(PO4)2)(H2O)4. This white powder is widely used as a corrosion resistant coating on metal surfaces either as part of an electroplating process or applied as a primer pigment (see also red lead). It has largely displaced toxic materials based on lead or chromium, and by 2006 it had become the most commonly used corrosion inhibitor. Zinc phosphate coats better on a crystalline structure than bare metal, so a seeding agent is often used as a pre-treatment. One common agent is sodium pyrophosphate.

Choose An Option...
25 kg bag
SKU: N/A Categories: ,



Industries: Paints and varnishes
CAS number: 7779-90-0
WE number: 231-944-3
Chemical formula: Zn3( PO4)2•2H2O
Molar mass: 458,14 g/mol

Other physical properties

pH: 6,0-8,0 (20°C)
Melting / freezing point: 912°C
Solubility in water: <0,1 % (20°C)

Additional information

Dimensions N/A
Available amount

25 kg bag