Direkt zum Inhalt
Merck
Alle Fotos(2)

Dokumente

357421

Sigma-Aldrich

Wolfram

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

Synonym(e):

W

Anmeldenzur Ansicht organisationsspezifischer und vertraglich vereinbarter Preise
Alle Fotos(2)

About This Item

Empirische Formel (Hill-System):
W
CAS-Nummer:
7440-33-7
Molekulargewicht:
183.84
EG-Nummer:
231-143-9
MDL-Nummer:
MFCD00011461
UNSPSC-Code:
12141747
PubChem Substanz-ID:
24861914
NACRES:
NA.23

Assay

≥99.99% trace metals basis

Form

powder

Widerstandsfähigkeit

4.9 μΩ-cm, 20°C

Partikelgröße

≤10 μm

bp

5660 °C (lit.)

mp (Schmelzpunkt)

3410 °C (lit.)

Dichte

19.3 g/mL at 25 °C (lit.)

SMILES String

[W]

InChI

1S/W

InChIKey

WFKWXMTUELFFGS-UHFFFAOYSA-N

Piktogramme

Flame
GHS02

Signalwort

Warning

H-Sätze

H252

Gefahreneinstufungen

Self-heat. 2

Lagerklassenschlüssel

4.2 - Pyrophoric and self-heating hazardous materials

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

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

Analysenzertifikate (COA)

Suchen Sie nach Analysenzertifikate (COA), indem Sie die Lot-/Chargennummer des Produkts eingeben. Lot- und Chargennummern sind auf dem Produktetikett hinter den Wörtern ‘Lot’ oder ‘Batch’ (Lot oder Charge) zu finden.

Besitzen Sie dieses Produkt bereits?

In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.

Die Dokumentenbibliothek aufrufen

Kunden haben sich ebenfalls angesehen

Slide 1 of 3

1 of 3

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

Sigma-Aldrich

357189

Wolfram

Wolfram(IV)-carbid powder, 2 μm, ≥99%

Sigma-Aldrich

241881

Wolfram(IV)-carbid

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

Sigma-Aldrich

267554

Wolfram

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
Katrin Schröder et al.
Free radical biology & medicine, 41(9), 1353-1360 (2006-10-07)
Hyperlipidemia enhances xanthine oxidase (XO) activity. XO is an important source of reactive oxygen species (ROS). Since ROS are thought to promote atherosclerosis, we hypothesized that XO is involved in the development of atherosclerosis. ApoE(-/-) mice were fed a Western-type
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
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.
Alle zugehörigen Dokumente anzeigen

Artikel

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.

Unser Team von Wissenschaftlern verfügt über Erfahrung in allen Forschungsbereichen einschließlich Life Science, Materialwissenschaften, chemischer Synthese, Chromatographie, Analytik und vielen mehr..

Setzen Sie sich mit dem technischen Dienst in Verbindung.