GF21631250
Tungsten
lump, 200g, max. size 5mm
Synonyme(s) :
Tungsten, W 006100, W
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About This Item
Formule empirique (notation de Hill):
W
Numéro CAS:
Poids moléculaire :
183.84
Numéro MDL:
Code UNSPSC :
12141747
ID de substance PubChem :
Nomenclature NACRES :
NA.23
Produits recommandés
Forme
wire
Fabricant/nom de marque
Goodfellow 216-312-50
Résistivité
4.9 μΩ-cm, 20°C
Taille max. des fragments
5 mm
Point d'ébullition
5660 °C (lit.)
Pf
3410 °C (lit.)
Densité
19.3 g/mL at 25 °C (lit.)
Chaîne SMILES
[W]
InChI
1S/W
Clé InChI
WFKWXMTUELFFGS-UHFFFAOYSA-N
Description générale
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Informations légales
Product of Goodfellow
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Carlos D Brondino et al.
Current opinion in chemical biology, 10(2), 109-114 (2006-02-17)
Mononuclear molybdenum and tungsten are found in the active site of a diverse group of enzymes that, in general, catalyze oxygen atom transfer reactions. Enzymes of the xanthine oxidase family are the best-characterized mononuclear Mo-containing enzymes. Several 3D structures of
Dae Yup Han et al.
International journal of radiation oncology, biology, physics, 89(3), 666-673 (2014-04-23)
To demonstrate that utilization of the direction-modulated brachytherapy (DMBT) concept can significantly improve treatment plan quality in the setting of high-dose-rate (HDR) brachytherapy for cervical cancer. The new, MRI-compatible, tandem design has 6 peripheral holes of 1.3-mm diameter, grooved along
Gijsbert B van der Voet et al.
Military medicine, 172(9), 1002-1005 (2007-10-17)
Tungsten and tungsten compounds are considered toxicologically relatively safe. Concern regarding the potential health and environmental effects of depleted uranium and lead in military applications has lead many countries to explore the possibility of applying toxicologically safer metals. Heavy metal
Malcolm H Chisholm et al.
Chemical record (New York, N.Y.), 5(5), 308-320 (2005-10-08)
The reaction of M2(O2CBu(t))4 (M = Mo, W) with a dicarboxylic acid in toluene yields compounds of general formula [M2]-O2C-X-CO2-[M2] ([M2] = M2(O2CBu(t))3; X = conjugated spacer). The M2 units are electronically coupled via interactions between the M2 delta and
Matthias Boll et al.
Biological chemistry, 386(10), 999-1006 (2005-10-13)
The molybdenum enzymes 4-hydroxybenzoyl-CoA reductase and pyrogallol-phloroglucinol transhydroxylase and the tungsten enzyme acetylene hydratase catalyze reductive dehydroxylation reactions, i.e., transhydroxylation between phenolic residues and the addition of water to a triple bond. Such activities are unusual for this class of
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