Characteristic

Zinc phosphate is an inorganic compound with the formula Zn₃(PO₄)₂)(H₂O)₄.

Chemical formula：H₄O₁₂P₂Zn₃

Molar mass：454.11 g·mol⁻¹

Appearance：white solid

Density：3.998 g/cm³

Melting point：900 °C (1,650 °F; 1,170 K)

Solubility in water：insoluble

Magnetic susceptibility (χ)：−141.0·10⁻⁶cm³/mol

Refractive index (nD)：1.595

Crystal structure：monoclinic

Application

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).