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241431

Sigma-Aldrich

Tungsten hexacarbonyl

97%

Sinônimo(s):

Hexacarbonyltungsten, Tungsten carbonyl

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About This Item

Fórmula linear:
W(CO)6
Número CAS:
Peso molecular:
351.90
Número CE:
Número MDL:
Código UNSPSC:
12352103
ID de substância PubChem:
NACRES:
NA.23
Preço e disponibilidade não estão disponíveis no momento.

densidade de vapor

12.1 (vs air)

pressão de vapor

1.2 mmHg ( 67 °C)

Ensaio

97%

Formulário

solid

adequação da reação

core: tungsten
reagent type: catalyst

Impurezas

<1% Mo

pf

150 °C (lit.)

densidade

2.65 g/mL at 25 °C (lit.)

cadeia de caracteres SMILES

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

InChI

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

chave InChI

FQNHWXHRAUXLFU-UHFFFAOYSA-N

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Aplicação

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]

Pictogramas

Skull and crossbones

Palavra indicadora

Danger

Frases de perigo

Classificações de perigo

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

Código de classe de armazenamento

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

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)


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Certificados de análise (COA)

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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)
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
F Porrati et al.
Nanotechnology, 20(19), 195301-195301 (2009-05-08)
W-based granular metals have been prepared by electron-beam-induced deposition from the tungsten hexacarbonyl W(CO)(6) precursor. In situ electrical conductivity measurements have been performed to monitor the growth process and to investigate the behavior of the deposit under electron beam post-irradiation
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

Artigos

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

Questions

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

    1 answer
    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

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

    1 answer
    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

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