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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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5 G
$247.00
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$868.00

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5 G
$247.00
25 G
$868.00

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

$247.00

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vapor density

12.1 (vs air)

Quality Level

200

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.[1][2] Also used in photochemistry[3]
Catalyst used in the photochemical cyclization of silyloxytrienes via either a 6-endo pathway or a Cope rearrangement.[4]

pictograms

Skull and crossbones
GHS06

signalword

Danger

Hazard Classifications

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

Storage Class

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

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
0000436031
0000439398
0000439398
0000436031
0000436012

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Kuramshin, A.I. et al.
Russ. J. Org. Chem., 41(5), 649-655 (2005)
Utke, I.; et al.
Advanced Engineering Materials, 8 (3), 155-157 (2006)
Denny, N.R.
Proc. SPIE: Int. Soc. Opt. Eng., 6005-6005 (2005)
Journal of Organometallic Chemistry, 692, 562-562 (2007)
Sarah M Eichfeld et al.
ACS nano, 9(2), 2080-2087 (2015-01-28)
Tungsten diselenide (WSe2) is a two-dimensional material that is of interest for next-generation electronic and optoelectronic devices due to its direct bandgap of 1.65 eV in the monolayer form and excellent transport properties. However, technologies based on this 2D material
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