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472956

Sigma-Aldrich

Tungsten hexacarbonyl

99.99% trace metals basis (excluding Mo), purified by sublimation

Synonym(s):

Hexacarbonyltungsten, Tungsten carbonyl, Tungsten hexacarbonyl

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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:
24870851
NACRES:
NA.23

vapor density

12.1 (vs air)

vapor pressure

1.2 mmHg ( 67 °C)

Assay

99.99% trace metals basis (excluding Mo)

form

solid

purified by

sublimation

reaction suitability

core: tungsten
reagent type: catalyst

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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General description

Atomic number of base material: 74 Tungsten

Application

A precursor for the perparation of tungsten-containing complexes or nanomaterials. Also used in photochemistry
Catalyst used in the photochemical cyclization of silyloxytrienes via either a 6-endo pathway or a Cope rearrangement.

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Kuramshin, A.I. et al.
Russ. J. Org. Chem., 41(5), 649-655 (2005)
Journal of Organometallic Chemistry, 692, 562-562 (2007)
Utke, I.; et al.
Advanced Engineering Materials, 8 (3), 155-157 (2006)
Denny, N.R.
Proc. SPIE: Int. Soc. Opt. Eng., 6005-6005 (2005)
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
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