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267511

Sigma-Aldrich

Tungsten

powder, 12 μm, 99.9% trace metals basis

Sinonimo/i:

W

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About This Item

Formula empirica (notazione di Hill):
W
Numero CAS:
Peso molecolare:
183.84
Numero CE:
Numero MDL:
Codice UNSPSC:
12141747
ID PubChem:
NACRES:
NA.23

Saggio

99.9% trace metals basis

Forma fisica

powder

Resistività

4.9 μΩ-cm, 20°C

Dimensione particelle

12 μm

P. eboll.

5660 °C (lit.)

Punto di fusione

3410 °C (lit.)

Densità

19.3 g/mL at 25 °C (lit.)

Stringa SMILE

[W]

InChI

1S/W
WFKWXMTUELFFGS-UHFFFAOYSA-N

Pittogrammi

Flame

Avvertenze

Warning

Indicazioni di pericolo

Classi di pericolo

Self-heat. 2

Codice della classe di stoccaggio

4.2 - Pyrophoric and self-heating hazardous materials

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

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


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

Sigma-Aldrich

267554

Tungsten

Tungsten powder, max. particle size 100 micron, weight 100 g, purity 99.9%

GF21419681

Tungsten

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Dalton transactions (Cambridge, England : 2003), 42(14), 5130-5139 (2013-02-14)
A rare example of a "monomeric" triple transition-metal substituted Keggin anion has been synthesized and characterized by various methods including X-ray crystallography, ESI and MALDI mass spectrometry, electrochemistry, EPR, and SQUID.
Karel Deprez et al.
Medical physics, 40(1), 012501-012501 (2013-01-10)
The construction of complex collimators with a high number of oblique pinholes is very labor intensive, expensive or is sometimes impossible with the current available techniques (drilling, milling or electric discharge machining). All these techniques are subtractive: one starts from
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