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14709 Tantalum(V) oxide, 99% (metals basis)

CAS Number
1314-61-0
Synonyms
Tantalum pentoxide

Stock No. Size Price ($) Quantity Availability
14709-09 10g 27.70
14709-18 50g 105.00
14709-30 250g 356.00
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Tantalum(V) oxide, 99% (metals basis)

MDL
MFCD00011254
EINECS
215-238-2

Chemical Properties

Formula
Ta2O5
Formula Weight
441.89
Form
Powder
Melting point
1800°
Density
8.2
Storage & Sensitivity
Ambient temperatures.
Solubility
Insoluble in water, alcohol, mineral acids. Soluble in HFInsoluble in almost all organic solvents including alcohol and mineral acids. Solubility is negligible in water. Soluble in HF

Applications

Tantalum(V) oxide is used in the production of capacitors, due to its high dielectric constant. These capacitors are used in automotive electronics, cell phones, thin film components and electronic circuitry. In addition, Tantalum(V) oxide has been utilized in the fabrication of the glass of photographic lenses. Due to its high biocompatibility and resistivity, it has attracted many biomedical applications. It is used in tantalum capacitors, resistive switching memories, high frequency CMOS (Complementary metal-oxide-semiconductors) integrated circuits and high-k dielectric for DRAM (Dynamic random-access memory) capacitor applications. It has been shown to improve corrosion resistance and cytocompatibility of titanium substrates.

Notes

Tantalum(V) oxide reacts with strong bases and hydrofluoric acid.

Literature References

Xu, G.; Shen, X.; Hu, Y.; Ma, P.; Cai, K. Fabrication of tantalum oxide layers onto titanium substrates for improved corrosion resistance and cytocompatibility. Surf. Coat. Technol. 2015, 272, 58-65.

Macionczyk, F.; Gerold, B.; Thull, R. Repassivating tantalum/tantalum oxide Surface Modification on Stainless Steel Implants. Surf. Coat. Technol. 2001, 142-144, 1084-1087.

Charlotta, A.; Bengt-Olov, M.; Margareta, S. Effect of heat treatment on the structure of L-Ta2O5. J. Solid State Chem. 2003, 176 (1), 250-258.

Other References

Merck
14,9056
Harmonized Tariff Code
2825.90
TSCA
Yes

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