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Tungsten hexacarbonyl

description uses Reaction Preparation
Product Name
Tungsten hexacarbonyl
CAS No.
14040-11-0
Chemical Name
Tungsten hexacarbonyl
Synonyms
W(CO)6;HEXACARBONYLTUNGSTEN;HexacarbonyL;TUNGSTEN CARBONYL;0.3%-Mo);0.1%-Mo);W(CO)6 (< 0.1% Mo);Hexacarbonylwolfram;tungstenehexacarbonyl;Tungsten carbonyl 99%
CBNumber
CB6684220
Molecular Formula
6CO.W
Formula Weight
351.9
MOL File
14040-11-0.mol
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Tungsten hexacarbonyl Property

Melting point:
150 °C (lit.)
Boiling point:
175 °C
Density 
2.65 g/mL at 25 °C (lit.)
vapor density 
12.1 (vs air)
vapor pressure 
1.2 mm Hg ( 67 °C)
RTECS 
YO7705000
Flash point:
200°C
storage temp. 
Store below +30°C.
solubility 
insoluble in H2O; soluble in organic solvents
form 
Fine Crystalline Powder
Specific Gravity
2.671
color 
Light yellow to beige
Water Solubility 
insoluble
Hydrolytic Sensitivity
4: no reaction with water under neutral conditions
Exposure limits
ACGIH: TWA 3 mg/m3
NIOSH: TWA 5 mg/m3; STEL 10 mg/m3
Stability:
Stable. Incompatible with oxidizing agents.
CAS DataBase Reference
14040-11-0(CAS DataBase Reference)
NIST Chemistry Reference
Tungsten hexacarbonyl(14040-11-0)
EPA Substance Registry System
Tungsten carbonyl (W(CO)6), (OC-6-11)- (14040-11-0)
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Safety

Hazard Codes 
T
Risk Statements 
23/24/25
Safety Statements 
22-24/25-45-38-36/37/39-28A-36/37
RIDADR 
UN 3466 6.1/PG 3
WGK Germany 
3
Hazard Note 
Toxic
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
II
HS Code 
29310095
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
8.00888
Product name
Hexacarbonyltungsten
Purity
for synthesis
Packaging
10g
Price
$111
Updated
2024/03/01
Sigma-Aldrich
Product number
8.00888
Product name
Hexacarbonyltungsten
Purity
for synthesis
Packaging
25g
Price
$250
Updated
2024/03/01
Sigma-Aldrich
Product number
241431
Product name
Tungsten hexacarbonyl
Purity
97%
Packaging
10g
Price
$96
Updated
2024/03/01
Sigma-Aldrich
Product number
241431
Product name
Tungsten hexacarbonyl
Purity
97%
Packaging
50g
Price
$351
Updated
2024/03/01
Alfa Aesar
Product number
043205
Product name
Hexacarbonyltungsten, 97%
Packaging
10g
Price
$89.6
Updated
2022/04/27
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Tungsten hexacarbonyl Chemical Properties,Usage,Production

description

Tungsten hexacarbonyl is easily vaporized and decomposed by the electron beam — providing a convenient source of tungsten atoms. This product is widely used in electron beam-induced deposition processes, it is also used as a precursor to catalysts for alkene metathesis and to desulfurize organosulfur compounds. It is relatively air-stable, and it is sparingly soluble in non-polar organic solvents. W(CO)6 reactions begin with the displacement of some of its CO ligands. Similar to Mo(CO)6 in behavior, W(CO)6 typically forms compounds that are kinetically more robust. Synthesis of this product are reported (see the links below).

uses

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

Reaction

Volatile starting material used for the atomic layer deposition of tungsten oxide, tungsten nitride.
Tungsten hexacarbonyl is used to produce tungsten coatings on base metals. This is done by deposition of the carbonyl on the metal surface, which decomposes to leave a tungsten coating.

Preparation

Tungsten hexacarbonyl is produced by heating tungsten metal with carbon monoxide at high pressure. Also, carbonyl can be prepared by reducing the tungsten hexachloride by heating with iron powder under carbon monoxide pressure.

Chemical Properties

White, volatile, highly refractive, crystalline solid. Decomposes without melting at 150C. One of the more stable carbonyls. Insoluble in water; soluble in organic solvents.

Physical properties

White crystalline solid; density 2.65 g/cm3; decomposes at 170°C without melting; sublimes; vapor pressure 0.1 torr at 20°C; insoluble in water; soluble in most organic solvents.

Uses

Tungsten Hexacarbonyl is an useful catalyst in carbonyation amines, as well as an stable source of tungsten atoms through electron beam-induced depostion.

Uses

It is used as a catalyst in many organicsynthetic reactions.

Uses

Tungsten coatings on base metals by deposition and decomposition of the carbonyl.

General Description

Atomic number of base material: 74 Tungsten

Health Hazard

Toxicity of this compound is not reported.Although air stable at ambient temperature,upon heating it emits toxic carbonmonoxide. Chronic exposure to its vaporsor dusts can cause bronchitis. Ingestion islikely to produce the toxic effect of tungstenoxides.

Fire Hazard

It explodes when heated to high temperature. Solution in ether can explode if stored for a long time.

Purification Methods

Sublime it in vacuo before use [Connoe et al. J Chem Soc, Dalton Trans 511 1986]. TOXIC.

Tungsten hexacarbonyl Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from Tungsten hexacarbonyl manufacturers

Henan Fengda Chemical Co., Ltd
Product
Tungsten hexacarbonyl 14040-11-0
Price
US $50.00-1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
g-kg-tons, free sample is available
Release date
2023-12-22
LY Global chemicals co.,ltd .
Product
Tungsten hexacarbonyl 14040-11-0
Price
US $0.00-0.00/g
Min. Order
25g
Purity
98%min
Supply Ability
1000g
Release date
2023-03-11
Career Henan Chemical Co
Product
Tungsten hexacarbonyl 14040-11-0
Price
US $7.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
100KG
Release date
2019-12-30

14040-11-0, Tungsten hexacarbonylRelated Search:


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  • Tungsten hexacarbonyl ISO 9001:2015 REACH
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  • 14040-11-0
  • C6O6W1
  • 6COW
  • CO6W
  • C6O6W
  • Catalysis and Inorganic Chemistry
  • ALD Precursors
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  • metal carbonyl complexes
  • Catalysis and Inorganic Chemistry
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  • Tungsten
  • TungstenVapor Deposition Precursors