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Merck

357421

Tungsten

powder, ≤10 μm, ≥99.99% 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:
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assay

≥99.99% trace metals basis

form

powder

reaction suitability

core: tungsten

resistivity

4.9 μΩ-cm, 20°C

particle size

≤10 μm

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



pictograms

Flame

signalword

Warning

hcodes

Hazard Classifications

Self-heat. 2

Storage Class

4.2 - Pyrophoric and self-heating hazardous materials

wgk

WGK 3

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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Weijie Zhao et al.
ACS nano, 7(1), 791-797 (2012-12-22)
Geometrical confinement effect in exfoliated sheets of layered materials leads to significant evolution of energy dispersion in mono- to few-layer thickness regime. Molybdenum disulfide (MoS(2)) was recently found to exhibit indirect-to-direct gap transition when the thickness is reduced to a
Zhigang Chen et al.
Advanced materials (Deerfield Beach, Fla.), 25(14), 2095-2100 (2013-02-22)
A new photothermal coupling agent for photothermal ablation (PTA) therapy of tumors is developed based on ultrathin PEGylated W18O49 nanowires. After being injected with the nanowire solution, the in vivo tumors exhibit a rapid temperature rise to 50.0 ± 0.5
Denys Shevchenko et al.
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.