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  1. Products Products
  2. Raw Tantalum Raw Tantalum
  3. Tantalum Oxide (Ta2O5) Powder Tantalum Oxide (Ta2O5) Powder
  4. Applications Applications

Tantalum Oxide (Ta2O5) Powder

Tantalum oxide powder, also known as tantalum pentoxide powder (Ta2O5 powder), is white crystalline powder. As amphoteric oxide, Ta2O5 powder is insoluble in water and slightly soluble in hydrofluoric acid. Tantalum pentoxide powder is thermally stable and it is also stable in ceramic structures.

Specification for our tantalum pentoxide powder
CAS#: 1314-61-0, not hazardous, soluble in HF, Purity: 99.9%~99.999%
White powder, F.W. 441.98, m.p. 1800 °C, Spec. Gravity 8.2 gm/cm3

Item No. Description Purity Inquiry
OXTa-3N Tantalum (V) Pentoxide Powder
-60 mesh, -100mesh, -200mesh, D90<15μm, etc.
Ta2O5≥99.9% Inquiry
OXTa-4N Tantalum Pentoxide Powder
-60 mesh, -100mesh, -200mesh, D90<15μm, etc.
Ta2O5≥99.99% Inquiry
OXTa-4N5 Tantalum Oxide Powder
-60 mesh, -100mesh, -200mesh, etc.
Ta2O5≥99.995% Inquiry

Please specify the particle size requirments when you send us inquiry on powder materials. 

Chemical composition for each grade of Ta2O5 powder

Grade OXTa-4N5 OXTa-4N OXTa-3N
Mainly (%, ≥) Ta2O5 99.995 99.99 99.9
Impurities (%, ≤) Nb 0.0003 0.0010 0.0030
Al 0.0002 0.0004 0.0005
As 0.00005 0.0001 0.0010
B 0.0001 0.0001 --
Bi 0.0001 0.0002 0.0005
Ca 0.0003 0.0005 --
Co 0.00005 0.0001 --
Cr 0.0001 0.0003 0.0005
Cu 0.0001 0.0003 0.0005
F 0.0060 0.0070 0.010
Fe 0.0003 0.0005 0.0010
K 0.0003 0.0005 --
Mg 0.0002 0.0003 --
Mn 0.0001 0.0002 0.0005
Mo 0.0001 0.0002 0.0008
Na 0.0005 0.0010 --
Ni 0.0001 0.0003 0.0010
Pb 0.0003 0.0003 0.0010
Sb 0.0005 0.0010 --
Si 0.0008 0.0013 0.0030
Sn 0.0001 0.0001 0.0005
Ti 0.0001 0.0001 0.0005
V 0.00005 0.0001 --
W 0.0002 0.0003 0.0005
Zr 0.0001 0.0001 --

Applications for tantalum pentoxide powder

-Tantalum oxide powder has ferroelectric properties
-UV laser applications combined in multilayers with silicon dioxide
-Film capacitors, as gate insulators in large scale integrated circuits

Packaging of our tantalum oxide powder
Tantalum pentoxide powder 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 for powder
  • Tantalum pentoxide powder



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