Trititanium pentoxid (Ti3O5) Appearance: purple crystal pellets Density: 4.47 g/cm3 Melting point: 1775℃ Transmittance scope: 400-12000nm Refractive index(500nm): 2.2-2.40 Vapour deposition condition: evaporated by electron gun, oxygen added Vapour deposition temp.: 1800-2000℃ Purity: >99.99% Applications: anti-reflection film, spectroscope, etc. Specs: 1-3mm 2-4mm