Tungsten Hexachloride WCl6 99.9

Tungsten Hexachloride (WCl₆) 99.9% – High-Purity Metal Halide for Advanced Applications

Basic Information

• CAS Number: 13283-01-7

• Molecular Formula: WCl₆

• Molecular Weight: 396.56 g/mol

• Appearance: Dark blue to bluish-violet crystals

• Relative Density: 3.52 g/cm³ at 25°C

• Melting Point: 275°C

• Boiling Point: 346.7°C

• Solubility: Soluble in carbon disulfide, ether, ethanol, benzene, and carbon tetrachloride.

• Stability: Decomposes readily in hot water; oxidized by air upon heating to form tungsten oxychlorides or tungsten oxides. In the presence of moisture, hydrolysis occurs. Reduced by hydrogen at high temperature to form tungsten powder.

Overview
Tungsten hexachloride is an important transition metal halide with high purity (99.9%). It is a versatile precursor in chemical vapor deposition (CVD), catalysis, and tungsten metallurgy. The compound is sensitive to moisture and air, requiring careful handling under inert conditions.

Applications

• Chemical Vapor Deposition (CVD): Used for depositing tungsten thin films and coatings in semiconductor and microelectronics industries, including the production of single-crystal tungsten wire and conductive layers on glass surfaces.

• Catalysis: Acts as a catalyst in olefin polymerization, particularly in the synthesis of engineering plastics such as polydicyclopentadiene (PDCPD). Also applied in organic synthesis reactions.

• High-purity tungsten refining: Serves as an intermediate for producing high-purity tungsten metal and tungsten carbide (WC) powders.

• Nanoparticle precursor: Used in the preparation of tungsten-based nanomaterials with tailored properties.

• Smart glass production: Employed in electrochromic devices and energy-efficient glazing due to its tungsten content.

• Agriculture and petrochemical industries: Utilized in specialized chemical processes.

Handling and Storage

• Tungsten hexachloride is moisture-sensitive; handle under dry inert gas (argon or nitrogen).

• Store in tightly sealed containers, away from water and oxidizing agents.

• Use in a well-ventilated fume hood.

• Decomposition products include hydrogen chloride and tungsten oxides; avoid inhalation of dust or fumes.

Packaging
Available in 25 g, 100 g, 500 g, and 1 kg bottles with inert gas filling. Custom packaging upon request.

Quality Assurance
Each batch is analyzed for purity (ICP-OES), water content, and chloride content to ensure consistent product quality.