Skip to Content
MilliporeSigma
All Photos(2)

Documents

357421

Sigma-Aldrich

Tungsten

powder, ≤10 μm, ≥99.99% trace metals basis

Synonym(s):

W

Sign Into View Organizational & Contract Pricing
All Photos(2)

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:
12352300
PubChem Substance ID:
24861914
NACRES:
NA.23

Quality Level

100

assay

≥99.99% trace metals basis

form

powder

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

Related Categories

pictograms

Flame
GHS02

signalword

Warning

hcodes

H252

Hazard Classifications

Self-heat. 2

Storage Class

4.2 - Pyrophoric and self-heating hazardous materials

wgk_germany

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Slide 1 of 4

1 of 4

Tungsten powder, max. particle size 25 micron, weight 1000 g, purity 99.9%

GF37370752

Tungsten

Tungsten foil, thickness 0.5 mm, ≥99.9% trace metals basis

Sigma-Aldrich

357189

Tungsten

Tungsten(IV) carbide powder, 2 μm, ≥99%

Sigma-Aldrich

241881

Tungsten(IV) carbide

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

Sigma-Aldrich

267554

Tungsten

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.
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
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
View All Related Papers

Articles

Additive Manufacturing of Permanent Magnets

Permanent magnets are an essential technology for energy conversion. Motors and generators are used to convert energy between electrical and mechanical forms.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service