Synthesis and characterization of the lamellar microcrystalline zinc phosphate α-Zn3(PO4)2 · 4H 2O / 西安交通大学学报·英文版

ABSTRACT

Objective: To study the structural and anticorrosive property of microcrystalline α-Zn3 (PO4)2 · 4H2O. Methods: Zinc phosphate was prepared from zinc acetate and orthophosphate acid in aqueous solution. Structural characteristics of products were investigated by XRD, RAMAN, FTIR, TC-DTA, SEM, surface area, particle size distribution, and density measurements. Results: The title compound, a highly crystalline, micronized and lamellar α-Zn3 (PO 4)2 · 4H2O, has an orthorhombic monoclinic system, space group a0 = 10.597(Å),b0 = 18.308 (Å), c0 = 5.0304(Å), V = 975.86 Å3. Its specific area is 0.701 m2/g, density 3.1612 g/m3, and average size 4.75μm. Conclusion: Comparing with commercial Zinc phosphate, the synthesized lamellar microcrystalline zinc phosphate had excellent anticorrosive property and dispersibility.