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267554

Sigma-Aldrich

Tungsten

wire, diam. 0.25 mm, ≥99.9% trace metals basis

Synonym(s):

W

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About This Item

Empirical Formula (Hill Notation):
W
CAS Number:
Molecular Weight:
183.84
EC Number:
MDL number:
UNSPSC Code:
12141747
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

≥99.9% trace metals basis

form

wire

resistivity

4.9 μΩ-cm, 20°C

diam.

0.25 mm

bp

5660 °C (lit.)

mp

3410 °C (lit.)

density

19.3 g/mL at 25 °C (lit.)

SMILES string

[W]

InChI

1S/W

InChI key

WFKWXMTUELFFGS-UHFFFAOYSA-N

Application

Tungsten (W) wire can be used for a variety of applications such as:
  • fabrication of tungsten tips which can be used as field emitters, nanoprobes and scanning tunneling microscope (STM) probes.
  • increase of the band gap of amorphous silicon germanium alloy.
  • formation of tungsten fibers for potential usage in the lighting industry.

Quantity

9.5 g = 10 m; 95 g = 100 m

Storage Class

11 - Combustible Solids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves, type P3 (EN 143) respirator cartridges


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