CAS 1314-61-0 Tantalum(V) oxide - Materials / Alfa Chemistry

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Tantalum(V) oxide

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Catalog Number

ACM1314610-8

CAS Number

1314-61-0

Product Name

Tantalum(V) oxide

Structure

Category

3D Printing Materials

Synonyms

Tantalum(V)oxide;Tantalum pentoxide;Tantalum(V) Oxide;dioxotantaliooxy(dioxo)tantalum;

Description

Tantalum pentoxide, also known as tantalum(V) oxide, is the inorganic compound with the formula Ta 2O 5. It is a White solid that is insoluble in all solvents but is attacked by strong bases and hydrofluoric acid. Ta 2O 5 is an inert material with a high refractive index and low absorption (i.e. colourless), which makes it useful for coatings. It is also extensively used in the production of capacitors, due to its high dielectric constant.

Molecular Weight

441.89

Molecular Formula

O5Ta2

Melting Point

1800ºC

Purity

99%, 99.9%, 99.99%, 99.999%

Density

8.2

Appearance

White to white-beige powder

Application

Tantalum(V) oxide serves several critical functions primarily due to its unique chemical and physical properties. It is chiefly used to produce high refractive index optical glass, which enhances optical performance in various applications. Furthermore, it acts as a dielectric film on tantalum, making it an essential component in capacitors and rectifiers. The compound is also utilized in the preparation of tantalum metal, its carbides, and other tantalum-based compounds, underscoring its versatility. Despite its resistance to most acids and alkalies, Tantalum(V) oxide can be dissolved for analytical purposes through fusion with alkali hydroxides, carbonates, or potassium pyrosulfate. Its stability in multiple forms and reactions with specific compounds make it a valuable material in both industrial and technological contexts.

EC Number

215-238-2

Log P

-0.54360

MDL Number

MFCD00011254

WGK Germany

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