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241431

Sigma-Aldrich

Tungsten hexacarbonyl

97%

Sinonimo/i:

Hexacarbonyltungsten, Tungsten carbonyl

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50 G
332,00 €

332,00 €


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Cambia visualizzazione
50 G
332,00 €

About This Item

Formula condensata:
W(CO)6
Numero CAS:
Peso molecolare:
351.90
Numero CE:
Numero MDL:
Codice UNSPSC:
12352103
ID PubChem:
NACRES:
NA.23

332,00 €


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Densità del vapore

12.1 (vs air)

Livello qualitativo

Tensione di vapore

1.2 mmHg ( 67 °C)

Saggio

97%

Stato

solid

Impiego in reazioni chimiche

core: tungsten
reagent type: catalyst

Impurezze

<1% Mo

Punto di fusione

150 °C (lit.)

Densità

2.65 g/mL at 25 °C (lit.)

Stringa SMILE

[W].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+]

InChI

1S/6CO.W/c6*1-2;
FQNHWXHRAUXLFU-UHFFFAOYSA-N

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Applicazioni

Precursor to a Fischer carbene complex which reduces Pd(II) to nanoparticulate Pd(0) that is catalytically active in Hiyama cross-coupling.[1]
Tungsten hexacarbonyl, [W(CO)6] may be used as a precursor for the deposition of WO3-x films, which may be used as gas sensors for the detection of NO2. [2]

Pittogrammi

Skull and crossbones

Avvertenze

Danger

Indicazioni di pericolo

Classi di pericolo

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral

Codice della classe di stoccaggio

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)


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Certificati d'analisi (COA)

Lot/Batch Number

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Dipankar Srimani et al.
Organic letters, 9(18), 3639-3642 (2007-08-07)
An efficient synthesis of Pd nanoparticles in water has been developed using a Fischer carbene complex of tungsten as the reductant and PEG as the capping agent. The colloidal palladium (1 mol %) efficiently catalyzes Hiyama cross-coupling reactions performed in
Aerosol assisted chemical vapour deposition of WO 3 thin films from tungsten hexacarbonyl and their gas sensing properties.
Ashraf S, et al.
Journal of Materials Chemistry, 17.35, 3708-3713 (2007)
S Martin et al.
The Journal of chemical physics, 134(3), 034304-034304 (2011-01-26)
We have studied the excitation and dissociation processes of the molecule W(CO)(6) in collisions with low kinetic energy (3 keV) protons, monocharged fluorine, and chlorine ions using double charge transfer spectroscopy. By analyzing the kinetic energy loss of the projectile
Lei Li et al.
Journal of the American Society for Mass Spectrometry, 15(1), 87-102 (2003-12-31)
The internal energy distributions, P(epsilon), of a millisecond pulsed radio frequency glow discharge plasma were investigated using tungsten hexcarbonyl W(CO)(6) as a "thermometer molecule". Vapor of the probe molecule, W(CO)(6), was introduced into the plasma and subjected to various ionization
Seth M Dumbris et al.
The Journal of organic chemistry, 74(22), 8862-8865 (2009-10-30)
Hydantoins can be synthesized from the corresponding amino amides employing oxidative catalytic carbonylation using W(CO)(6) as the catalyst, I(2) as the oxidant, CO as the carbonyl source, and DBU as base. Secondary amides afford the hydantoins in good to excellent

Articoli

The properties of many devices are limited by the intrinsic properties of the materials that compose them.

Domande

1–2 di 2 domande  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 risposta
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Utile?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 risposta
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Utile?

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