Tungsten(VI) oxychloride
Tungsten(VI) oxychloride (CAS: 13520-78-0), with the linear formula WOCl extsubscript{4}, is a chemical compound with a molecular weight of 341.65 g/mol. This compound is typically supplied as a solid with an assay of 98%. It finds applications in various chemical synthesis processes and serves as a precursor in materials science, particularly in the study and development of tungsten-based materials and catalysts.
- IUPAC
- Tungsten(VI) chloride oxide,Tungsten(VI) oxide chloride

Catalyst Precursor
Tungsten(VI) oxychloride can serve as a precursor for the synthesis of various tungsten-based catalysts used in organic transformations and polymerization reactions.
Chemical Synthesis
It is employed as a reagent in inorganic and organic synthesis, facilitating the introduction of tungsten into different molecular structures.
Materials Science Research
This compound is utilised in materials science for the development of novel tungsten-containing materials, thin films, and coatings.
| Molecular weight | 341.65 |
|---|---|
| Linear formula | WOCl4 |
| Assay | 98% |
| Form | solid |
| Melting point | 211 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Tungsten(VI) oxychloride used for?
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Tungsten(VI) oxychloride is used as a precursor in catalyst synthesis, a reagent in chemical synthesis, and in materials science research for developing tungsten-containing materials.
What is the CAS number and formula for Tungsten(VI) oxychloride?
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The CAS number is 13520-78-0 and the linear formula is WOCl extsubscript{4}.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Tungsten(VI) oxychloride with a purity of 98%. This is a technical grade, and TSS does not represent it as USP, BP, or EP grade.
What are the main safety hazards associated with Tungsten(VI) oxychloride?
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Tungsten(VI) oxychloride is a Warning substance that causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, should be used.
How is Tungsten(VI) oxychloride packed, shipped, and exported?
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Tungsten(VI) oxychloride is carefully packed according to industry standards for safe transport. Tech Serve Solutions has extensive experience in exporting fine chemicals globally.
How can I request a quote or sample of Tungsten(VI) oxychloride?
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To request a quote or sample, please contact our sales team through the website or provide your inquiry details.
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