Zinc Oxide Physical character: Zinc Oxide Molecular mass: 81.408; Zinc Oxide Density: =5.606 g/cm3 Zinc Oxide Melting Point: 1975℃ ; Zinc Oxide Boiling Point: 2360℃; Zinc Oxide Pure :5N or 99.999%; Zinc Oxide Technic: CVD : 2Zn +02= 2ZnO