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767522

Sigma-Aldrich

Tungsten

sputtering target, diam. × thickness 2.00 in. × 0.25 in., 99.95% trace metals basis

Sinônimo(s):

W

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About This Item

Fórmula empírica (Notação de Hill):
W
Número CAS:
Peso molecular:
183.84
Número CE:
Número MDL:
Código UNSPSC:
12352103
ID de substância PubChem:
NACRES:
NA.23

Ensaio

99.95% trace metals basis

Formulário

pieces

adequação da reação

core: tungsten

resistividade

4.9 μΩ-cm, 20°C

diâmetro × espessura

2.00 in. × 0.25 in.

p.e.

5660 °C (lit.)

pf

3410 °C (lit.)

densidade

19.3 g/mL at 25 °C (lit.)

cadeia de caracteres SMILES

[W]

InChI

1S/W

chave InChI

WFKWXMTUELFFGS-UHFFFAOYSA-N

Aplicação

Sputtering is a process whereby atoms are ejected from a solid target material due to bombardment of the target by energetic particles. The extreme miniaturization of components in the semiconductor and electronics industry requires high purity sputtering targets for thin film deposition.

Código de classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

nwg

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable


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Mark L Witten et al.
Chemico-biological interactions, 196(3), 87-88 (2011-12-21)
There is emerging evidence that tungsten has toxic health effects. We summarize the recent tungsten toxicity research in this short review. Tungsten is widely used in many commercial and military applications because it has the second highest melting temperature of
P Thongkumkoon et al.
Toxicology letters, 226(1), 90-97 (2014-02-08)
The toxicity of nanomaterials has been well known, but mechanisms involved have been little known. This study was aimed at looking at direct interaction between nanomaterials and naked DNA for some fundamental understanding. Two different types of nanomaterials, carbon nanotubes
Jan R Andreesen et al.
Annals of the New York Academy of Sciences, 1125, 215-229 (2007-12-22)
The history and changing function of tungsten as the heaviest element in biological systems is given. It starts from an inhibitory element/anion, especially for the iron molybdenum-cofactor (FeMoCo)-containing enzyme nitrogenase involved in dinitrogen fixation, as well as for the many
Mehran Ahmadlou et al.
Nature communications, 6, 6773-6773 (2015-04-04)
The superior colliculus is a layered structure important for body- and gaze-orienting responses. Its superficial layer is, next to the lateral geniculate nucleus, the second major target of retinal ganglion axons and is retinotopically organized. Here we show that in
Nikolay Strigul
Ecotoxicology and environmental safety, 73(6), 1099-1113 (2010-09-16)
Tungsten is a widely used transition metal that has not been thoroughly investigated with regards to its ecotoxicological effects. Tungsten anions polymerize in environmental systems as well as under physiological conditions in living organisms. These polymerization/condensation reactions result in the

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