What Is Zirconium Tetrachloride? Properties and Uses
Zirconium tetrachloride, or zirconium(IV) chloride, is an inorganic compound with the formula ZrCl4. It is a moisture-sensitive source of zirconium used to produce other zirconium compounds and materials, and it also serves in selected catalyst and chemical processes. Its formula weight is approximately 233.04 g/mol, and its theoretical zirconium content is about 39.1 wt%. Because it reacts with moisture and can release hydrogen chloride, buyers and users should consider grade, packaging, storage, and handling requirements alongside price.
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For procurement, the key question is not simply whether a product is labeled “zirconium tetrachloride.” The intended process may require a particular purity, impurity profile, particle form, or packaging format. We explain the compound’s defining properties, common uses, and the information to confirm with a supplier before placing an order.
What Is Zirconium Tetrachloride?
Zirconium tetrachloride is a chloride of zirconium in the +4 oxidation state. Its CAS Registry Number is 10026-11-6. In commerce and technical documents, it may also be called zirconium(IV) chloride or zirconium chloride; buyers should confirm the formula and grade to distinguish it from other zirconium-containing chlorides and solutions.
At ordinary conditions, the anhydrous material is typically described as a white or off-white crystalline solid. It is hygroscopic, meaning it readily takes up moisture from the air. Contact with water can cause hydrolysis, producing zirconium-containing hydrolysis products and hydrogen chloride, so exposure to damp air or water can affect product condition and process behavior.
Core Properties and Functions
Physical and chemical properties
Zirconium tetrachloride is valued as a concentrated zirconium-bearing feedstock. Its molar mass is approximately 233.04 g/mol, and the zirconium portion accounts for about 39.1% of that mass by theoretical calculation. It is also reported to sublime at approximately 331°C under atmospheric conditions; actual behavior depends on pressure, equipment, and material conditions.
The compound acts as a Lewis acid and can participate in reactions where zirconium is introduced into a chemical system. Its sensitivity to moisture is an important practical property rather than a minor storage detail. For this reason, specifications and handling procedures should address water exposure and packaging integrity, not only assay.
What it does in manufacturing
Its main function is to provide zirconium for downstream chemical conversion or material synthesis. A manufacturer may use it as a starting material to prepare other zirconium compounds, or as a reagent in a process designed around zirconium chemistry. In catalyst applications, it may be used as a component or precursor, although suitability depends on the specific catalyst formulation and process.
Common Uses of Zirconium Tetrachloride
Production of zirconium compounds and materials
Zirconium tetrachloride is used as an intermediate in the production of other zirconium-containing chemicals. It may also be used in routes toward zirconium metal or advanced materials, depending on the process. Manufacturers should confirm that the selected grade’s impurity profile is compatible with the intended conversion, since trace contaminants can matter in sensitive applications.
Catalysis and research
In selected chemical processes, zirconium tetrachloride is used as a catalyst or catalyst component, including in research and specialty synthesis. Its Lewis-acid character can be useful in reactions that require an electron-pair-accepting center. Performance is application-specific, so users should evaluate it in the actual formulation and operating conditions rather than assume it will work as a universal catalyst.
Specialty chemical and material development
Researchers and manufacturers may use zirconium tetrachloride when developing zirconium-based compounds, coatings, or functional materials. These applications often place greater emphasis on reproducibility and controlled impurities than general-purpose chemical use. Buyers should communicate the intended application and any process limits to the supplier before selecting a grade.
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Grades and Material Options
Available commercial options can vary by supplier and production route. Buyers may encounter different purity levels, particle forms, and packaging formats, but these characteristics should be verified against the current product specification rather than inferred from a generic product name.
- Purity or assay: Confirm the stated method, acceptance range, and whether the assay is reported on an as-received or other basis.
- Impurity profile: Identify any elements or residues that could interfere with the intended reaction or final material.
- Moisture control: Ask how the product is protected from humidity and whether water-related limits are included in the specification.
- Particle form: Confirm whether the material is supplied as crystals, powder, or another form, and whether that form suits feeding and dissolution requirements.
- Packaging: Review container compatibility, closure, net weight, and any inner moisture barrier offered for the order.
Key Specifications to Review
A product specification helps translate process requirements into a purchasing decision. It should identify the chemical name and formula, grade or assay, relevant impurity limits, physical description, and storage guidance. Where moisture sensitivity is critical, ask whether the supplier can provide a defined water-related specification and explain its test basis.
Request a current Certificate of Analysis for the supplied lot and a Safety Data Sheet before use. These documents support incoming inspection and workplace hazard review, but the buyer should still assess whether the stated limits meet the application’s requirements. If a specification does not define a property that is important to your process, clarify it in writing before confirming the order.
How to Select a Supplier and Grade
Match the material to the process
Start with the downstream use, required zirconium input, and known sensitivity to impurities or moisture. Then define the necessary purity, particle form, packaging, and order quantity with measurable acceptance criteria where possible. A higher assay alone does not guarantee better process performance if the impurity limits, handling format, or documentation do not match your needs.
Assess documentation and supply communication
Before purchasing, confirm that the supplier can identify the product clearly and provide relevant lot documentation. Discuss packaging, transport, storage, and any import or site-specific requirements early, especially when the material will cross borders or enter a controlled process. For repeat orders, align on the specification and change-notification expectations to help maintain consistency.
Handling and Storage Considerations
Zirconium tetrachloride is moisture-sensitive and can release hydrogen chloride on contact with water. Keep it in packaging suitable for the product and follow the current Safety Data Sheet, local regulations, and site procedures. Handling should be performed by trained personnel using appropriate engineering controls and personal protective equipment identified through a workplace risk assessment.
Avoid relying on generic storage advice when the product’s packaging or intended use has specific requirements. Inspect containers for damage before use, limit unnecessary exposure to ambient air, and follow established procedures for spills and waste. The supplier’s documentation and your facility’s safety team should guide the final handling plan.
Key Takeaways
- Zirconium tetrachloride is ZrCl4, a moisture-sensitive zirconium(IV) chloride and a useful feedstock for downstream zirconium chemistry.
- Its approximate molar mass is 233.04 g/mol, theoretical zirconium content is 39.1 wt%, and reported sublimation temperature is about 331°C at atmospheric pressure.
- Uses include producing zirconium compounds and materials, selected catalyst applications, and specialty chemical or materials development.
- Grade selection should consider assay, impurity limits, moisture control, particle form, packaging, and lot documentation.
Conclusion: Is Zirconium Tetrachloride Right for Your Application?
Zirconium tetrachloride is a suitable option when a process requires a concentrated, reactive source of zirconium and can accommodate its moisture sensitivity. The right choice depends on the chemistry, required impurity profile, handling controls, and packaging—not on the product name alone. Define those requirements before comparing offers, and verify that the supplier’s specification and lot documentation address them.
At Azeal Materials, we can discuss your required grade, intended application, documentation needs, and packaging preferences for zirconium tetrachloride. Share your target specification, estimated quantity, and destination with our team to support a focused quotation and product-fit review.