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262897

Sigma-Aldrich

Tantalum

foil, thickness 0.25 mm, ≥99.9% trace metals basis

Synonym(s):

Ta

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About This Item

Empirical Formula (Hill Notation):
Ta
CAS Number:
Molecular Weight:
180.95
EC Number:
MDL number:
UNSPSC Code:
12141741
PubChem Substance ID:
NACRES:
NA.23

Pricing and availability is not currently available.

vapor pressure

<0.01 mmHg ( 537.2 °C)

Quality Level

Assay

≥99.9% trace metals basis

form

foil

autoignition temp.

572 °F

resistivity

13.5 μΩ-cm, 20°C

thickness

0.25 mm

bp

5425 °C (lit.)

mp

2996 °C (lit.)

density

16.69 g/cm3 (lit.)

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This Item
H83781684236105
Quality Level

100

Quality Level

200

Quality Level

100

Quality Level

100

storage temp.

2-8°C

storage temp.

−20°C

storage temp.

2-8°C

storage temp.

2-8°C

optical purity

enantiomeric excess: ≥98.0%

optical purity

-

optical purity

enantiomeric excess: ≥98.0%

optical purity

-

composition

sodium, 17.5-19.0%

composition

-

composition

sodium, 17.5-19.0%

composition

sodium, 17.5-19.0%

General description

The structure of tantalum is body centered cubic (BCC) metal. It is a refractory metal; stable up to very high temperatures. Tantalum is ductile at room temperature and moderately ductile at cryogenic temperatures.[1] Compton profile of highly pure thin elemental foil of tantalum was investigated using IGP type coaxial photon detector.1

Quantity

50x50 mm (approximately 10.4 g)
100x100 mm (approximately 41.6 g)

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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