Zirconium dioxide (ZrO2) Appearance: white Density: 5.50 g/cm3 Vapor pressure: 1 Pa at 2000℃ Hardness(Mohs hardness): 6.5 Melting point: 2720℃ Solubility: non-soluble in water, soluble in hydrofluoric acid Transmittance scope: 320-7000nm Refractive index: 2.05 Vapour deposition condition: evaporated by electron gun, oxygen added Vapour deposition temp.: 2300℃ Purity: >99.99% Applications: anti-reflection film, multi-layer film, decoration film, etc. Specs: Φ18*7t Φ18*10t Φ20*12t Φ25*12t We are able to produce products of all materials and specs according to customer's demand