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Titanium Tetrachloride丨CAS 7550-45-0

CAS: 7550-45-0
Chemical Formula: Cl4Ti

Titanium tetrachloride (chemical formula Cl4Ti) is a colorless to pale yellow liquid with a strong irritant odor. It hydrolyzes rapidly upon contact with air, producing white fumes, and is therefore often regarded as an important representative of highly reactive halides in industrial applications. Thanks to its excellent chlorination properties and stable industrial supply chain, titanium tetrachloride has become a key raw material in the titanium industry, catalytic systems, and fine chemicals.
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Titanium Tetrachloride Basic Properties

Synonyms

Tetrachlorotitanium;TITANIUM CHLORIDE;TiCl4;Titane;titanio(tetraclorurodi);

TITANIUM(IV) CHLORIDE;tetrachloruredetitane;TITANIUM(IV) TETRACHLORIDE

Molecular FormulaCl4Ti
AppearanceColorless to pale yellow liquid
Molecular Weight189.68
Melting Point-25 °C(lit.)
Boiling Point135-136 °C(lit.)
Density1.73 g/mL at 20 °C(lit.)
Vapor Pressure50 mm Hg ( 55 °C)
Refractive Index1.61
Flash Point46 °F
Storage ConditionsFlammables area
SolubilitySoluble in dilute hydrochloric acid and ethanol, reacts violently with water
Purity99.9%
Package Information100g, 500g, 1kg, or customized

Titanium Tetrachloride Key Features

Extremely high chemical reactivity

Titanium Tetrachloride, as a strong Lewis acid, exhibits high activity in chlorination reactions, catalytic reactions, and organometallic synthesis, making it an irreplaceable and important intermediate for the production of titanium metal and its compounds.

Mature industrial supply chain

The global titanium industry is highly dependent on Titanium Tetrachloride, resulting in a mature production capacity layout, storage and transportation standards, and quality system that can meet the needs of large-scale and long-term industrial use.

Adaptable to multiple industry requirements

Cl4Ti is available in multiple purity grades to suit various applications, including industrial and electronic grades, making it particularly suitable for catalyst preparation and high-purity metal processes.

Diverse chemical applications

It can be used in a variety of chemical processes, such as chlorination, oxidation, deposition, and substitution, making it a highly flexible metal halide raw material in the industry.

Titanium Tetrachloride Main Applications

Catalysts

As a strong Lewis acid, Titanium Tetrachloride is a core component of many Ziegler–Natta catalytic systems and is widely used in the polyolefin industry.

Organic synthesis

TiCl4 can be used in a variety of organic reactions, such as Friedel-Crafts reactions and chlorination reactions, and is an important multi-purpose intermediate in fine chemicals and pharmaceutical chemicals.

Semiconductors and microelectronics

It can be used to deposit high-k dielectric TiO2 or conductive gate/diffusion barrier layer TiN.

Optical coating

TiCl4 can be used to deposit TiO2 thin films with a high refractive index, for the preparation of antireflective films, interference filters, and decorative coatings.

Precautions

  1. Titanium Tetrachloride reacts instantly with water, decomposing and releasing a large amount of hydrogen chloride. The reaction can be represented as: TiCl₄ + 2H₂O → TiO₂ + 4HCl + heat. Therefore, it must be stored in airtight, moisture-proof containers and kept away from any water source, humidity, or damp environments.

  2. Special steel cylinders or corrosion-resistant containers must be used for storage and transportation, and direct contact with stainless steel metal or water-containing materials should be avoided.

  3. Due to its corrosive and highly irritating nature, acid-resistant gloves, protective clothing, protective goggles, and face shields must be worn when handling TiCl4. Bare hands or unprotected operation are strictly prohibited.

  4. In the event of a leak, evacuate personnel immediately, cover with dry sand or use inert absorbent material, and avoid using water-based extinguishing agents to prevent the generation of corrosive fumes.

FAQ

1. What is Titanium Tetrachloride? Why does it smoke?

It is the tetravalent chloride of titanium, a colorless to pale yellow liquid that reacts violently with water. It "smokes" in the air because it undergoes a violent hydrolysis reaction with water vapor in the air, producing white titanium dioxide solid particles and hydrogen chloride gas. These fine particles are suspended in the air, forming dense white fumes. It is mainly used in CVD deposition, catalyst preparation, and organic synthesis.


2. Does Titanium Tetrachloride dissolve in water?

It does not dissolve in water. In water, it will decompose violently, releasing heat and corrosive gases. Therefore, it should never come into contact with water.


3. What are the advantages of Cl4Ti in CVD?

It has moderate volatility and stable decomposition, and can form uniform and high-purity titanium-based thin films, making it a commonly used precursor for industrial-grade CVD.


Wolfa professionally supplies Titanium Tetrachloride, supporting small-batch sampling and large-volume procurement needs. Packaging options include ordinary glass bottles, glass ampoules, metal ampoules, etc.


For product analysis reports (such as COA) or procurement consulting, please feel free to contact us at jomin@wolfabio.com at any time.

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