Merck
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303518

Sigma-Aldrich

Tantalum(V) oxide

99% trace metals basis

Synonym(s):
Tantalum pentoxide
Linear Formula:
Ta2O5
CAS Number:
Molecular Weight:
441.89
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

99% trace metals basis

form

powder

reaction suitability

reagent type: catalyst
core: tantalum

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

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General description

Tantalum pentoxide is dielectric in nature making it useful for making capacitors in the electronics industry.

Application

Tantalum oxide is intermixed with silicon in gate dielectric structures.[1] It may be used to synthesize hexagonally packed mesoporous tantalum oxide molecular sieves.[2]Ion-beam sputter deposition of tantalum oxide films was investigated for possible optical coating applications.[3]It may be used in making optical glass for lenses and in electronic circuits.

Packaging

25 g in glass bottle
100 g in poly bottle

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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