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267546

Sigma-Aldrich

Tungsten

foil, thickness 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:
7440-33-7
Molecular Weight:
183.84
EC Number:
231-143-9
MDL number:
MFCD00011461
UNSPSC Code:
12141747
PubChem Substance ID:
24856232
NACRES:
NA.23

Quality Level

100

Assay

≥99.9% trace metals basis

form

foil

resistivity

4.9 μΩ-cm, 20°C

thickness

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

Quantity

  • 50×50 mm (approximately 12 g)
  • 100×100 mm (approximately 48 g)

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCT1549
MKCV2370
MKCR5237
MKCR4466
MKCQ5427

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Sigma-Aldrich

262781

Niobium

Tungsten powder, 12 μm, 99.9% trace metals basis

Sigma-Aldrich

267511

Tungsten

Michael L Crichton et al.
Biomaterials, 34(8), 2087-2097 (2012-12-25)
The recent emergence of micro-devices for vaccine delivery into upper layers of the skin holds potential for increased immune responses using physical means to target abundant immune cell populations. A challenge in doing this has been a limited understanding of
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
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
Bing Sun et al.
Biosensors & bioelectronics, 44, 48-51 (2013-02-09)
A universal photoelectrochemical (PEC) sensing platform was fabricated based on the composition of protoporphyrin IX (PPIX), tungsten trioxide (WO3) and reduced graphene oxide (rGO) on indium tin oxide (ITO) electrode for detecting cysteine in aqueous solution. The rGO layer was
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
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