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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:
7440-25-7
Molecular Weight:
180.95
EC Number:
231-135-5
MDL number:
MFCD00011252
UNSPSC Code:
12141741
PubChem Substance ID:
24855933
NACRES:
NA.23
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vapor pressure

<0.01 mmHg ( 537.2 °C)

Quality Level

100

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
357243262919GF91305817
Tantalum foil, thickness 0.25&#160;mm, &#8805;99.9% trace metals basis

262897

Tantalum

Tantalum foil, thickness 0.05&#160;mm, &#8805;99.9% trace metals basis

357243

Tantalum

Tantalum foil, thickness 0.025&#160;mm, &#8805;99.9% trace metals basis

262919

Tantalum

Tantalum foil, thickness 0.5&#160;mm, size 100 × 100&#160;mm, purity 99.99%

GF91305817

Tantalum

form

foil

form

foil

form

foil

form

foil

assay

≥99.9% trace metals basis

assay

≥99.9% trace metals basis

assay

≥99.9% trace metals basis

assay

99.99%

resistivity

13.5 μΩ-cm, 20°C

resistivity

13.5 μΩ-cm, 20°C

resistivity

13.5 μΩ-cm, 20°C

resistivity

13.5 μΩ-cm, 20°C

mp

2996 °C (lit.)

mp

2996 °C (lit.)

mp

2996 °C (lit.)

mp

2996 °C (lit.)

density

16.69 g/cm3 (lit.)

density

16.69 g/cm3 (lit.)

density

16.69 g/cm3 (lit.)

density

16.69 g/cm3 (lit.)

bp

5425 °C (lit.)

bp

5425 °C (lit.)

bp

5425 °C (lit.)

bp

5425 °C (lit.)

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

11 - Combustible Solids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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