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OX0023 Tantalum Oxide/Tantalum Pentoxide (Ta2O5) Maximize

OX0023 Tantalum Oxide/Tantalum Pentoxide (Ta2O5)

Catalog No.OX0023
Purity99.9%, 99.99%
CAS Number1314-61-0
Formula Weight441.98
Melting Point1800 °C
Spec. Gravity8.2 gm/cm3
Lot Size10kg, 50kg, 100kg

Stanford Advanced Materials (SAM) is a trusted supplier and manufacturer of high quality tantalum oxide and various tantalum compounds including tantalum carbide powder, tantalum silicide powder, capacitor grade tantalum powder and metallurgical grade tantalum powder.

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Description of Tantalum Oxide/Tantalum Pentoxide

Tantalum oxide (Ta2O5), also known as tantalum pentoxide. Tantalum pentoxide (Ta2O5) powder is used in the production of lithium tantalate (LiTaO3) single crystals. These single crystals are cut into wafers and are used as a substrate for manufacturing surface acoustic wave filters. These SAW filters made of lithium tantalate (LiTaO3) can be used in mobile end devices such as smartphones, tablet PCs, ultrabooks, GPS applications, and smart meters. SAM can provide ultrapure tantalum pentoxides, which feature especially good flow characteristics due to their narrow grain size distribution. It can be used in crystal industry. Our tantalum pentoxides also can be used in the production of sputtering targets, with which anti-reflective layers are applied to optical lenses using physical vapor deposition (PVD). "



Specifications of Tantalum Oxide/Tantalum Pentoxide

Product No.

Purity (Impurities in Oxides)

Lot Size


Ta2O5 > 99.9% (metals basis)
Nb < 0.005%, Fe < 0.005%, Si < 0.002%

Ti < 0.002%, Ni < 0.002%, W < 0.003%

10 kg
50 kg
100 kg


Ta2O5 > 99.99% (metals basis)
Nb < 10 ppm, Fe < 10 ppm, Si < 10 ppm
Ti < 3 ppm, Ni < 3 ppm, W < 5 ppm

10 kg
50 kg
100 kg


Ta2O5 > 99.995% (metals basis)
Nb < 2 ppm, Fe < 3 ppm, Si < 3 ppm
Ti < 1 ppm, Ni < 1 ppm, W < 2 ppm

10 kg
50 kg
100 kg

Particle size: -60 mesh, -200 mesh, -325 mesh or customized
Special particle size can be customized upon your request.


Tantalum Pentoxide (Ta2O5) Powder 99.9%, -325mesh
Tantalum Pentoxide (Ta2O5) Powder 99.99%, D(50)<10 μm

Applications of Tantalum Oxide/Tantalum Pentoxide

-Ferroelectric properties
-UV laser applications combined in multilayers with silicon dioxide
-film capacitors, as gate insulators in large scale integrated circuits


Packaging of Tantalum Oxide/Tantalum Pentoxide

Tantalum oxide is clearly tagged and labeled externally to ensure efficient identification and quality control. Great care is taken to avoid any damage which might be caused during storage or transportation.

packing packing

Material Safety Data Sheet for your reference

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