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Hexacarbonyltungsten CAS 14040-11-0

Molecular Formula: 6CO.W

Formula Weight: 351.9

ZSpharmac: Hexacarbonyltungsten Supplement

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Product Name: Hexacarbonyltungsten
CAS No: 14040-11-0
Purity: 99%

Basic Info

Product Name:Hexacarbonyltungsten
Other Names:Tungsten Hexacarbonyl
CAS:14040-11-0
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Daily Chemicals
Appearance:Light Yellow to Beige Fine Crystalline Powder
EINECS No.:237-880-2
Storage:Store Below +30°C.
Provide:Hexacarbonyltungsten MSDS;
Hexacarbonyltungsten COA

What is Hexacarbonyltungsten?

Hexacarbonyltungsten are important organometallic compounds, which are coordination compounds formed by transition metal tungsten (molybdenum) and carbon monoxide ligands, usually six ligands, and are widely used in organic synthesis. For example, under light conditions, molybdenum Hexacarbonyltungsten can be used to catalyze the ring-opening polymerization of cycloalkenes; carbonyl tungsten or carbonyl molybdenum complexes can undergo corresponding insertion reactions with alkenes, fast Hexacarbonyltungsten, diazomethane, cyanide, etc. to generate various organic compounds. Molybdenum compounds; simple substituted organo-molybdenum compounds can be prepared by using the ligands of carbonyl tungsten or carbonyl molybdenum complexes to carry out intermolecular substitution or exchange reactions, and more complex binuclear complexes can also be prepared.
Hexacarbonyltungsten has the chemical formula W(CO)6. Molecular weight 351.91. White crystals. Specific gravity 2.65. Sublimation at 60~70℃ in vacuum. Slightly decomposes in sunlight. It decomposes rapidly to tungsten and carbon monoxide at about 150°C. Insoluble in water, insoluble in ethanol, ether, benzene, soluble in fuming nitric acid. It is obtained by heating tungsten hexachloride, aluminum powder and carbon monoxide (1.1 × 107 Pa) to 100 °C in an autoclave. Used as a catalyst, it can also be used for tungsten plating on metals or ceramics. Tungsten Hexacarbonyltungsten is a coordination compound through which the first dihydro complex was obtained. It is a colorless solid and, like the carbonyl complexes of the same family, chromium Hexacarbonyltungsten and molybdenum hexacarbonyl, is a volatile and air-stable substance in which the tungsten atom has a valence of zero. The band position, intensity and spectral type of the molecular vibrational spectrum of tungsten Hexacarbonyltungsten are closely related to the chemical structure, spatial geometry, molecular force field and distribution of electron clouds inside the molecule. The fluorescence properties have obvious effects, so the study of its vibrational modes and vibrational spectra is of great significance. Some studies have used the high symmetry of tungsten Hexacarbonyltungsten molecules and combined group theory to analyze the vibrational modes and spectral activities of tungsten hexacarbonyl molecules. By calculation, 13 different vibrational frequencies of molecules, molecular bond lengths, electron cloud distribution and other information were obtained.

Hexacarbonyltungsten 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
color Light yellow to beige
Specific Gravity2.671
Water Solubility insoluble

 

Hexacarbonyltungsten Uses

Hexacarbonyltungsten is a transition metal ion complex with high molecular symmetry. As an important catalyst, tungsten Hexacarbonyltungsten can not only be used as a catalyst to prepare polyphenylene vinylene with good fluorescence properties [10], but also to prepare special compounds containing bifluorene structure. At the same time, using tungsten Hexacarbonyltungsten as the material or precursor, through the chemical vapor deposition process, the tungsten carbide film material can be obtained by depositing on the surface of the carbon fiber, and the tungsten film can be obtained by depositing the tungsten film on the surface of the copper substrate. Examples of its application are as follows:

1. For preparing a kind of tungsten trioxide nanotube, it comprises the following processing steps:
1) Using tungsten Hexacarbonyltungsten as raw material and porous anodic alumina as template, lay the raw material on the bottom of the ceramic crucible, then place the opening of the porous anodic alumina template on top of the raw material, seal the crucible and place it in a tube furnace for heating , low temperature sublimation, so that tungsten Hexacarbonyltungsten is deposited in the porous anodic aluminum template, and the temperature continues to heat up to thermally decompose the tungsten Hexacarbonyltungsten deposited in the porous anodic aluminum template to form a metal tungsten deposit;
2) Continue to heat up to make step 1) metal tungsten deposition and oxidation;
3) Remove the porous alumina template with dilute acid solution, then carry out suction filtration treatment, and dry to obtain the finished product.

Method 2: for preparing a two-dimensional tungsten sulfide thin film material, which is characterized by comprising the following processes:
1) Using a dual temperature field slide rail plasma PECVD system, the tube furnace is filled with argon; the SiO2/Si substrate is placed above the container with tungsten hexacarbonyl powder, and the container with sulfur powder is placed in the tube furnace The center of the first heating furnace; then put the container with tungsten Hexacarbonyltungsten in the center of the second heating furnace of the tube furnace; pass argon;
2) Under the argon atmosphere, the pressure in the tube furnace is increased to 133.29Pa, the power of the plasma generator in the plasma generator is set, the temperature of the first heating zone is raised to the volatilization temperature of the sulfur powder, and the temperature of the second heating zone is raised. to the volatilization temperature of tungsten hexacarbonyl; after the two temperature zones are heated up, the mixture of argon and hydrogen is changed; tungsten disulfide is deposited on the substrate, and then lowered to room temperature to obtain a two-dimensional WS2 thin film material.

Preparation Method of Hexacarbonyltungsten

A method for a tungsten Hexacarbonyltungsten or molybdenum complex with simple process, high efficiency and low cost, the technical scheme is:
a) Place tungsten or molybdenum chloride, reducing agent and non-polar organic solvent in a pressure reactor with a magnetic stirrer;
b. Drive out the air in the reaction system by repeatedly charging and discharging carbon monoxide 3 times, and then the reaction kettle is heated to a reaction temperature of 25°C to 50°C;
c, feed carbon monoxide to 5MPa~15MPa and keep the pressure in the reactor, then open the stirrer, the stirring speed is 100~360 rev/min, and the reaction time is 1 hour~12 hours;
d After the reaction is completed, the reaction solution is taken out after the solution is cooled to room temperature, and colorless crystals of tungsten hexacarbonyl or molybdenum hexacarbonyl are obtained by distillation and heating sublimation.
In the above-mentioned technical scheme, the chloride of tungsten or molybdenum is tungsten Hexacarbonyltungsten or molybdenum pentachloride, the reducing agent is carbonyl iron powder and pentacarbonyl iron complex mixture of equal mass ratio, and the non-polar organic solvent is anhydrous ether. Or anhydrous acetone, and their mass ratio (tungsten or molybdenum chloride, reducing agent and organic solvent) is 3%-6%, 4%-10%, 85%-93%. The purity of carbon monoxide used in the reaction process is required to be no less than 92%. The chemical reaction process of the above scheme can be expressed as:

Company Profile and Corporate Culture

Company Profile:

ZhiShang Chemical is owned by ZhiShang Group is a professional new-type chemicals enterprise combined into research and development, production and sales .

The company’s competitive product is pharmaceutical raw materials and intermediates (especially carbohydrate derivatives Series), In recent years, the company has made a major breakthrough in food and feed additives, plant extraction, industrial chemicals industry .

The company insists on the spirit of “sincere management, strict quality control, customer as god” , get consistent high praise from customers at home and abroad.

Corporate Culture:

Our Mission
Help China Chemicals to benefit the happiness of human life
Our Vission
Become the most trusted chemical supplier in the world
Our Business Philosophy
Striver – oriented, enrich employees, customer first, deep service, seek development
Our Values
Be prepared for danger in times of peace, forge ahead actively, unity and cooperation, and be brave to fight

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Additive , Chemical Auxiliary & Catalyst , Organic Chemicals
  • Products/Service: Organic Intermediate,Inorganic Chemistry, APIs, Dyestuffs And Pigments, Fragrance And Spices, Food Additives
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.

Service

Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.

 

After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.

FAQ

Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.

 

HOW TO CONFIRM THE PRODUCT QUALITY BEFORE PLACING ORDERS?

You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.

Shipping

1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

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