Tantalum Oxide Powder
Product Ta Oxide Powder (Ta2O5)
Part Number TRM-TA021
Purity 99.0% ~ 99.90% (Excluding Nb F and L.O.I)
Particle Size various
Density 8.2 g/cm3
CAS Number 1314-61-0

Typical application: Ta Oxide is used as the raw materials of the Tantalum metal (Ta Powder, Ta Bar, Ta Carbide). Tantalum pentoxide has found a variety of uses in electronics, particularly in tantalum capacitors, due to its high band gap and dielectric constant. These electronics are used in the automotive electronics, cell phones, and pagers, electronic circuitry, thin-film components, and high-speed tools. Tantalum oxide may have applications as the charge trapping layer for Non-volatile memories. Ta2O5 has been utilized in the fabrication of the glass of photographic lenses, due to its high refractive index.

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Inquiries and orders should include the following information:
1. Quantity
2. Purity
3. Particle Size

Chemical Composition – Ta Oxide Powder

Grade TA021-1 TA021-2
Ta2O5 Purity (%min) 99.90% 99.0-99.5%
Impurities（wt% max） Nb 0.05 0.05
Ti 0.001 0.002
W 0.001 0.002
Mo 0.001 0.002
Cr 0.001 0.002
Mn 0.001 0.002
Fe 0.005 0.01
Ni 0.001 0.002
Cu 0.001 0.002
Al 0.001 0.002
Si 0.005 0.01
F 0.05 0.1
Pb 0.001 0.002
Sn 0.002 0.005
Ca 0.002 0.005
Mg 0.001 0.002
Zr 0.001 0.002
C 0.005 0.008
S 0.003 0.006
L.O.I 0.2 0.3
Size -60mesh -60mesh

*Various particle size can be supplied (FSSS size <2 µm and etc.).

Standard Packing

Packed in iron or plastic drums of 25~50 kg net each with inner sealed double plastic bags of 25 kg net each. Special package is available on request.

Physical Properties -Tantalum Pentoxide Powder

Chemical formula Ta2O5
Form Powder
Molar mass 441.893 g/mol
Color white
Odor Odorless
PH N/A
Melting Point 1,872 °C (3,402 °F; 2,145 K)
Boiling Point 4742°C
Solubility negligible in water, insoluble in organic solvents and most mineral acids, reacts with HF
Band gap 3.8 – 5.3 eV
Magnetic susceptibility (χ) −32.0·10−6 cm3/mol
Refractive index (nD) 2.275