267554
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
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12141747
EC Number:
231-143-9
MDL number:
assay
≥99.9% trace metals basis
form
wire
reaction suitability
core: tungsten
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.
Preparation Note
9.5 g = 10 m; 95 g = 100 m
Storage Class
11 - Combustible Solids
wgk
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
Regulatory Listings
Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.
Substances Subject to be Indicated Names
ishl_indicated
Substances Subject to be Notified Names
ishl_notified
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Recrystallization of tungsten wire for fabrication of sharp and stable nanoprobe and field-emitter tips
Greiner M and Kruse P
The Review of Scientific Instruments, 78(2), 026104-026104 (2007)
Improving narrow bandgap a-SiGe: H alloys grown by hot-wire chemical vapor deposition
Xu Y, et al.
Thin Solid Films, 430(1-2), 197-201 (2003)
Tungsten fibre-reinforced composites for advanced plasma facing components
Neu R, et al.
Nuclear Materials and Energy, 12(1-2), 1308-1313 (2017)