Tungsten hexacarbon...

Tungsten hexacarbonyl, W(CO)6

Tungsten hexacarbonyl, W(CO)6

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100 Gram

Negotiable

  • Min.Order :100 Gram
  • Purity: 99.9%
  • Payment Terms : L/C,T/T,

Keywords

Tungsten hexacarbonyl 237-880-2 6CO.W

Quick Details

  • Appearance:White powder
  • Application:intermediate,catalyzer
  • PackAge:1kg/bag, 25kg/drum
  • ProductionCapacity:1000|Kilogram|Month
  • Storage:sealed packaging
  • Transportation:by air or by sea

Superiority:

Tungsten hexacarbonyl Chemical Properties
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
Fp  200°C
storage temp.  Store below +30°C.
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)
 

 

Details:

Tungsten hexacarbonyl Chemical Properties
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
Fp  200°C
storage temp.  Store below +30°C.
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)
 
Safety Information
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

 

 

Tungsten hexacarbonyl Usage And Synthesis
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.

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