204536

Tantalum(V) oxide

<20 μm, 99.99% trace metals basis

• Synonym(s): Tantalum pentoxide
• Linear Formula: Ta₂O₅
• CAS Number: 1314-61-0
• Molecular Weight: 441.89
• EC Number: 215-238-2
• MDL number: MFCD00011254
• UNSPSC Code: 12352303
• eCl@ss: 38180602
• PubChem Substance ID: 24852274
• NACRES: NA.23

Properties

• Quality Level: 100
• assay: 99.99% trace metals basis
• form: powder
• reaction suitability: reagent type: catalyst; core: tantalum
• particle size: <20 μm
• density: 8.2 g/mL at 25 °C (lit.)
• application(s): battery manufacturing
• SMILES string: O=[Ta](=O)O[Ta](=O)=O
• InChI: 1S/5O.2Ta
• InChI key: PBCFLUZVCVVTBY-UHFFFAOYSA-N

Description

General description

Ta₂O₅ (tantalum pentoxide) is a transition-metal oxide with a high refractive index (n=2.02–2.16), high dielectric constant, wide bandgap (4.0–4.5 eV), and wide transmission spectrum. It is a non-silicon dielectric material used in microelectronic devices and the ideal capacitive material for next-generation multi-chip modules. Due to its high acidity, it can serve as a catalyst for the oxidation of alkanes and pollution reduction. In addition, it is successfully used for the anode oxidization of electrodes in lithium batteries.

application

• Double-layered nanoparticle stacks for spectro-electrochemical applications.: This study discusses the development of double-layered nanoparticle stacks incorporating Tantalum(V) oxide, which have significant potential in spectro-electrochemical applications due to their high refractive index and dielectric properties (Frank et al., 2012).

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: nwg
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)