Sale! Tantalum (V) Oxide, Tantalum pentoxide, Ta2O5 Powder-heegermaterials View larger

Tantalum (V) Oxide, Tantalum pentoxide, Ta2O5 Powder


New product

Tantalum pentoxide is a write or faint yellow powder, widely used in the manufacture of advanced optical glass and catalyst.

More details

Please contact us if you need customized services. We will contact you with the price and availability in 24 hours.

Data sheet

Purity99.9%, 99.99%, 99.999%
Formula Weight441.98
Melting Point1800 °C
Spec. Gravity8.2 gm/cm3
Lot Size10kg, 50kg, 100kg

More info

Tantalum pentoxide (Ta2O5) is a white colorless crystalline powder. It is the most common oxide of tantalum and the final product of tantalum burning in the air. It is mainly used for pulling lithium tantalate single crystal and manufacturing special optical glass with high refraction and low dispersion. It can be used as a catalyst in the chemical industry.


CAS#: 1314-61-0, not hazardous, soluble in HF 

White powder, F.W. 441.98, m.p. 1800 °C, Spec. Gravity 8.2 gm/cm3

Item No.DescriptionPurity (Impurities in Oxides)Lot Size
HTTa0006-3NTantalum (V) Oxide Powder Particle size (FSSS): 0.5~2 µmTa2O5 > 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
HTTa0006-4NTantalum (V) Oxide Powder Particle size (FSSS): 1~3 µmTa2O5 > 99.99% (metals basis) Nb < 10 ppm, Fe < 10 ppm, Si < 10 ppm Ti < 3 ppm, Ni < 3 ppm, W < 5 ppm10 kg 50 kg 100 kg
HTTa0006-5NTantalum (V) Oxide Powder Particle size (FSSS): 1~3 µmTa2O5 > 99.999% (metals basis) Nb < 2 ppm, Fe < 3 ppm, Si < 3 ppm Ti < 1 ppm, Ni < 1 ppm, W < 2 ppm10 kg 50 kg 100 kg


TANTALUM OXIDE, Tantalum oxide (Ta2O5), Ditantalum pentaoxide, Tantalum oxide dusts, Tantalum penta oxide

Inquiry to Heeger Materials

Items marked with an asterisk (*) are required.
Please include item quantity, size and purity.
Privacy Information:

Heeger Materials respects your privacy, and we will NOT sell or provide your personal data to other third parties, or allow them to use your personal data for their own purposes. However, we would like to send you information from time to time by mail or email about our products and special offers in addition to the interest categories you've selected above. Read our Privacy Policy

12 other products in the same category:

Product customization

After saving your customized product, remember to add it to your cart.
Allowed file formats are: GIF, JPG, PNG



* required fields