Hafnium(IV) chloride
Hafnium(IV) chloride (CAS: 13499-05-3; HfCl₄) is a white crystalline solid with a molecular weight of 320.30 g/mol. It is known for its high purity, typically supplied at 99.9% on a trace metals basis and purified by sublimation. This compound is a key material in advanced applications, including the production of hafnium metal and alloys, as a catalyst in organic synthesis, and in the development of advanced ceramics and high-k dielectric materials for the semiconductor industry.

Hafnium Metal and Alloy Production
Hafnium(IV) chloride serves as a crucial precursor for the production of pure hafnium metal and its alloys, which are vital for applications in nuclear reactors due to their low neutron absorption cross-section.
Catalysis in Organic Synthesis
It functions as an effective Lewis acid catalyst in various organic transformations, facilitating reactions such as Diels-Alder cycloadditions and Friedel-Crafts acylation, enabling efficient synthesis of complex molecules.
Advanced Dielectric Materials
Hafnium(IV) chloride is employed in the deposition of hafnium oxide (HfO₂) thin films, which are critical high-k dielectric materials for advanced semiconductor devices, enhancing transistor performance and miniaturisation.
Ceramics and Coatings
This compound can be used in the synthesis of advanced ceramic materials and protective coatings, contributing to materials with enhanced thermal and chemical resistance for specialised industrial uses.
| Molecular weight | 320.30 |
|---|---|
| Linear formula | HfCl4 |
| Assay | 99.9% trace metals basis |
| Form | powder |
| Vapour pressure | 1 mmHg (190 °C) |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Transport (UN / ADR) | UN 3260 8 / PGII |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Purified By | sublimation |
|---|
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 Hafnium(IV) chloride primarily used for?
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Hafnium(IV) chloride is primarily used as a precursor for producing hafnium metal and alloys, as a catalyst in organic synthesis, and in the manufacturing of advanced dielectric materials and ceramics.
What are the CAS number and chemical formula for Hafnium(IV) chloride?
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The CAS number for Hafnium(IV) chloride is 13499-05-3, and its linear chemical formula is HfCl₄.
What grade and purity does Tech Serve Solutions supply for Hafnium(IV) chloride?
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Tech Serve Solutions supplies Hafnium(IV) chloride at 99.9% purity on a trace metals basis, purified by sublimation. This is a high-purity grade suitable for research and advanced manufacturing. TSS does not represent this product as USP, BP, or EP grade.
How should Hafnium(IV) chloride be handled safely?
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Hafnium(IV) chloride is corrosive and causes severe skin burns and eye damage (H314). Handle with appropriate personal protective equipment, including chemical-resistant gloves, eye protection, and protective clothing. Ensure adequate ventilation and avoid dust formation. Refer to the Safety Data Sheet for detailed handling instructions.
How is Hafnium(IV) chloride packed and exported by Tech Serve Solutions?
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Hafnium(IV) chloride is securely packed to ensure safe transit. As a specialist chemical supplier, Tech Serve Solutions has extensive experience in exporting such materials globally, adhering to all relevant shipping regulations.
How can I request a quote or sample for Hafnium(IV) chloride?
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To request a quote or a sample of Hafnium(IV) chloride, please contact our sales team through the website or by phone, providing your contact details and the quantity required.
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