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241431

Sigma-Aldrich

Tungsten hexacarbonyl

97%

Synonym(s):

Hexacarbonyltungsten, Tungsten carbonyl

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About This Item

Linear Formula:
W(CO)6
CAS Number:
14040-11-0
Molecular Weight:
351.90
EC Number:
237-880-2
MDL number:
MFCD00011462
UNSPSC Code:
12352103
PubChem Substance ID:
24854483
NACRES:
NA.23

vapor density

12.1 (vs air)

Quality Level

100

vapor pressure

1.2 mmHg ( 67 °C)

Assay

97%

form

solid

reaction suitability

core: tungsten
reagent type: catalyst

impurities

<1% Mo

mp

150 °C (lit.)

density

2.65 g/mL at 25 °C (lit.)

SMILES string

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

InChI

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

InChI key

FQNHWXHRAUXLFU-UHFFFAOYSA-N

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Application

Precursor to a Fischer carbene complex which reduces Pd(II) to nanoparticulate Pd(0) that is catalytically active in Hiyama cross-coupling.
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.

Pictograms

Skull and crossbones
GHS06

Signal Word

Danger

Hazard Statements

H301 + H311 + H331

Hazard Classifications

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

Storage Class Code

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

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

241431-BULK:
241431-50G:
241431-1KG:
241431-10G:
241431-VAR:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCQ2652
MKCQ0074
MKCP2426
MKCN6161
MKCN1457

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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)
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
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
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