Structure, properties, spectra, suppliers and links for: Zirconium dioxide,, ZrO2. Jump to main content Jump to site nav. Home; About us; Membership & professional community; Campaigning & outreach; Journals, books & databases ... Zirconium dioxide. Molecular Formula O 2 Zr; Average mass 123.223 Da; Monoisotopic mass 121.894531 …