Tantalum pentoxide (Ta2O5)

Tantalum pentoxide (Ta2O5) is a crystalline solid and white in appearance. It is a high-index, low-absorption material usable for coatings.

Specifications

ShapeColorPurityPackageStorage
SinterGranule1-3 mm; 3-5 mm
Upon demand
Grey
White
99.99%1 Kg/BagAvoid exposure to sunlight & acid
Keep dry
Tablet10x5 mm
Upon demand

Characteristics of tantalum pentoxide

CAS NumberDensity (g/cm3)Boiling point (Cº)Melting point (Cº)Refractive index at 550 (nm)Transparency range (µm)Evaporation source
1314-61-08.7/18002.160.35-9RE,RS
ApplicationsFilter; HR coating; Insulating coating

Evaporation technique

It can be deposited by reactive electron-beam evaporation or by sputtering. A tantalum or graphite crucible liner can be used for electron-beam.