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Merck
CN

767522

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

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关于此项目

经验公式(希尔记法):
W
化学文摘社编号:
分子量:
183.84
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352103
EC Number:
231-143-9
MDL number:
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assay

99.95% trace metals basis

form

pieces

reaction suitability

core: tungsten

resistivity

4.9 μΩ-cm, 20°C

diam. × thickness

2.00 in. × 0.25 in.

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

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.


存储类别

11 - Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

法规信息

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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
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
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



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货号GTIN
767522-1EA04061832924274