Our titanium sesquioxide sinter has two categories: tablet, granule. The product in this picture is sinter tablet. Applied in AR coating; Beam Splitter; Cold light coating filter; HR coating; Glasses coating We follow critical manufacture standards, quality assurance, welcome your consultation! Specifications Summary: Titanium sesquioxide (Chemical formula: Ti2O3) 1.sinter tablet: 9*5mm 2.sinter granule: upon demand 3.color: purple 4.purity: 99.99% 5.package: 1 KG/ bag 6.storage: avoid exposure to sunlight & acid keep dry titanium sesquioxide properties 1.cas no.: 1344-54-3 2.density(g/cm3): 4.49 3.melting point(℃): 1900 4.refractive index at 550 nm: 1.9~2.3 5.transparency range(μm): 0.4~12 6.evaporation source: RE,RS 7.applications: AR coating; Beam Splitter; Cold light coating filter; HR coating; Glasses coating