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755737

Sigma-Aldrich

Tungsten hexacarbonyl

packaged for use in deposition systems

Synonym(s):

Tungsten hexacarbonyl, Hexacarbonyltungsten (0), Tungsten carbonyl, Tungstenhexacarbonyl

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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:
329766135
NACRES:
NA.23

vapor density

12.1 (vs air)

Quality Level

100

vapor pressure

1.2 mmHg ( 67 °C)

Assay

99.9% (trace metals analysis)

form

solid

purified by

sublimation

reaction suitability

core: tungsten

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

Tumgstenhexacarbonyl is a volatile, air stable precursor of Tungsten(0), widely used in ALD and CVD techniques.

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

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Certificates of Analysis (COA)

Lot/Batch Number
0000317187
0000323525
MKBZ5377V
MKBN4452V

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Mulders, J. J. L.; Belova, L. M.; Riazanova, A.
Nanotechnology, 22, 055302/1-055302/1 (2011)
Maruyama, T., Arai, S.
Journal of the Electrochemical Society, 4, 1021-1021 (1994)
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
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