O-Chloroethylbenzene

Linshang Chemical

Specifications

HS Code

864172

Chemical Formula C8H9Cl
Molar Mass 140.61 g/mol
Appearance Colorless to light yellow liquid
Odor Aromatic odor
Density 1.072 g/cm³ at 20 °C
Boiling Point 179 - 182 °C
Melting Point -33 °C
Solubility In Water Insoluble
Solubility In Organic Solvents Soluble in many organic solvents like ethanol, ether
Flash Point 65 °C
Vapor Pressure 0.24 kPa at 20 °C
Refractive Index 1.5326 at 20 °C

As an accredited O-Chloroethylbenzene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

Packing & Storage
Packing O - chloroethylbenzene: Packed in 200 - liter drums, 10 drums per pallet.
Storage O - chloroethylbenzene should be stored in a cool, well - ventilated warehouse. Keep it away from ignition sources and heat. Store it separately from oxidizing agents and reactive chemicals. Use corrosion - resistant containers to prevent leakage. Ensure good labeling for easy identification and follow safety regulations to avoid potential risks.
Shipping O - chloroethylbenzene is a hazardous chemical. Shipping requires proper containment in specialized vessels. Compliance with safety regulations, proper labeling, and documentation about its properties are essential for secure transportation.
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O-Chloroethylbenzene O-Chloroethylbenzene
General Information
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Frequently Asked Questions

As a leading O-Chloroethylbenzene supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.

What are the main uses of O-chloroethylbenzene?
O-chloroethylbenzene is o-chloroethylbenzene. Its main uses are as follows:
o-chloroethylbenzene is used in the field of organic synthesis and has a wide range of uses. First, it is an intermediate for the preparation of pesticides. In the process of pesticide creation, o-chloroethylbenzene can be converted into pesticide active ingredients with insecticidal and herbicide effects through specific chemical reactions. Through subtle chemical modification, its structure can be adapted to the physiological characteristics of specific target organisms, so as to act accurately and exert excellent medicinal effects.
Second, it also plays an important role in the field of pharmaceutical synthesis. Pharmaceutical developers can use o-chloroethylbenzene as a starting material to build complex drug molecular structures through multi-step chemical reactions. Many compounds with specific pharmacological activities are synthesized with o-chloroethylbenzene as a key starting material, laying the foundation for the synthesis of drugs with therapeutic effects.
Third, o-chloroethylbenzene can be used to produce fragrances. In the fragrance industry, through a series of chemical transformations, it can give fragrances a unique aroma. The products generated by its participation in the reaction may have a fresh floral aroma or contain a light fruity aroma, enriching the types of fragrances and meeting the needs of different consumers for aroma.
Furthermore, in the field of materials science, o-chloroethylbenzene can be used as a monomer or auxiliary agent for the synthesis of special polymer materials. In polymer polymerization reactions, its unique chemical structure can endow polymer materials with specific properties, such as improved heat resistance and chemical corrosion resistance, broadening the application range of polymer materials, enabling them to be used in more severe environments.
What are the physical properties of O-chloroethylbenzene?
O-chloroethylbenzene is also an organic compound. Its physical properties are quite important and have many applications in the chemical industry.
Looking at its properties, at room temperature, O-chloroethylbenzene is a colorless and transparent liquid with a specific aromatic smell. Although this smell is volatile to a certain extent, it should also be paid attention to because its odor may affect the environment and human body.
When it comes to boiling point, it is about 178-180 ° C. The characteristics of boiling point are crucial in the temperature control of separation, purification and related reactions. Therefore, it can be effectively separated from the mixture according to its boiling point difference.
In terms of melting point, it is about -43 ° C. The definition of the state under this low temperature condition has a great impact on the storage and transportation of materials. It is necessary to adopt a suitable method depending on the ambient temperature to ensure its stability.
Its density is about 1.07 (g/mL, 20 ° C), which is heavier than water. In operations involving liquid-liquid mixing or delamination, this density characteristic can be used to determine its position in the system and assist in process design and control.
In terms of solubility, O-chloroethylbenzene is insoluble in water, but can be miscible with organic solvents such as alcohols, ethers, and chloroform. This solubility property makes it often used as a solvent in organic synthesis, providing a suitable environment for the reaction and facilitating the separation and purification of the product.
Vapor pressure is also one of its important physical properties. At a specific temperature, the vapor pressure reflects the difficulty of volatilization, which is related to the threat and risk assessment and prevention of gas escape in production and use scenarios.
In summary, the physical properties of O-chloroethylbenzene are of critical significance in chemical production, scientific research experiments, etc. Practitioners must know in detail to achieve safe and efficient purposes.
Is O-chloroethylbenzene chemically stable?
For O-chloroethylbenzene, there is a chlorine atom attached to the ortho-site of the benzene ring, and its chemical properties are not stable.
The capped benzene ring has a unique conjugation system, which changes the activity of the groups connected to it. The chlorine atom has an electron-absorbing induction effect, which can reduce the electron cloud density of the benzene ring, but it also has a electron-giving conjugation effect. The competition between the two results in a relatively high electron cloud density of the ortho-and para-site of the benzene ring, which makes the electrophilic substitution reaction easy to occur in the ortho-and para-site. The ethyl group attached to the benzene ring has a push electron induction effect and a super-conjugation effect, which can increase the electron cloud density of Therefore, the synergy between the two makes O-chloroethylbenzene very active in the electrophilic substitution reaction, and it is not a stable state.
Furthermore, in the C-Cl bond, the electronegativity of the chlorine atom is stronger than that of the carbon, so that the bond has polarity. This polarity makes the C-Cl bond can be broken off under suitable conditions, and the chlorine atom is easy to leave in the form of chloride ions, resulting in nucleophilic substitution reactions. For example, in an alkaline environment, nucleophiles can attack the carbon atom connected to chlorine and replace chlorine to form new compounds. This also proves that the chemical properties of O-chloroethylbenzene are unstable and can participate in the reaction due to changes in external conditions.
In addition, the ethyl group of the side chain of the benzene ring can increase its activity due to the influence of the benzene ring. If there is a free radical initiator in light or high temperature, the hydrogen atom on the ethyl group can be replaced by a halogen atom, and a free radical substitution reaction occurs. This is also evidence that O-chloroethylbenzene is chemically active and not stable.
What is the production process of O-chloroethylbenzene?
The process of preparing o-chloroethylbenzene may be different in ancient times, and this is one of the common methods mentioned above.
First, benzene and ethylene are used as materials, and aluminum trichloride is used as a catalyst. Under suitable temperature and pressure, the alkylation reaction is carried out. Among them, benzene is active enough, and ethylene can be used as an alkylating agent. Aluminum trichloride can polarize ethylene, making it easier to electrophilic substitution with benzene.
The reaction site should be a closed and well-stirred reactor to facilitate the full mixing of materials. The temperature is controlled at about 50-80 degrees Celsius, and the pressure is slightly higher than normal pressure, so that the reaction can be smooth and efficient.
After the reaction is completed, the product contains o-chloroethylbenzene, p-chloroethylben After distillation, according to the difference in boiling point of each substance, the unreacted benzene and ethylene are initially separated, which can be recycled and reused. The rest are further rectified to finely separate o-chloroethylbenzene. The rectifying process requires precise temperature control and reflux ratio to obtain high-purity o-chloroethylbenzene.
However, this process also has improvements, such as developing more efficient and environmentally friendly catalysts to reduce the corrosion and pollution of aluminum trichloride; optimizing the reaction equipment and process, improving the reaction efficiency and product selectivity, so that the process of preparing o-chloroethylbenzene is more perfect.
O-chloroethylbenzene need to pay attention to when storing and transporting
O-chloroethylbenzene is an organic compound with certain toxicity and volatility. When storing and transporting, pay attention to the following ends:
First, choose a storage place. Choose a cool and well-ventilated place, away from fire and heat sources. Because it is flammable, it can cause combustion and explosion in case of open fire and hot topic, so the warehouse temperature should not exceed 30 ° C.
Second, the packaging must be tight. Make sure that the packaging is not damaged or leaked to prevent its volatilization or leakage from causing environmental pollution and personal hazards. Commonly used packaging materials such as iron drums should be carefully checked before use.
Third, isolate from contraindicated substances. O-chloroethylbenzene should not be stored and transported with oxidants, acids, bases, etc. These substances come into contact with it, or cause severe chemical reactions, increasing safety risks.
Fourth, the consideration of transportation tools. Vehicles that meet safety standards should be selected during transportation, equipped with corresponding fire equipment and leakage emergency treatment equipment. During transportation, it is necessary to protect against sun exposure, rain and high temperature.
Fifth, personnel protection. Storage and transportation personnel should be equipped with appropriate protective equipment, such as gas masks, protective gloves, etc., to avoid direct contact. After the operation is completed, they should be washed and changed clothes in time.
Sixth, the preparation of emergency measures. Warehouses and transportation vehicles should be equipped with emergency equipment and plans for dealing with leaks, fires and other accidents. In the event of a leak, unrelated personnel should be promptly evacuated to isolate the leak area. Emergency responders should wear protective clothing and gas masks to properly handle the leak.
What are the main uses of O-chloroethylbenzene?
O-chloroethylbenzene is also an organic compound. It has a wide range of uses and is involved in various fields of chemical industry.
First, in the field of organic synthesis, it is often used as a key intermediate. It can be derived from other organic compounds through many chemical reactions. For example, it can react with nucleophiles to achieve the conversion of functional groups, and then prepare more complex organic molecules, which is of great significance for drug synthesis. Drug developers can use O-chloroethylbenzene as a starting material and through carefully designed reaction steps to construct compounds with specific pharmacological activities, paving the way for the creation of new drugs.
Second, it also plays an important role in the field of materials science. Or participate in the synthesis process of polymer materials. With its special chemical structure, polymer materials can be endowed with different properties. For example, the introduction of O-chloroethylbenzene structural units may improve the heat resistance and chemical corrosion resistance of the material, making the resulting material useful in aerospace, electronics and other industries that require strict material properties.
Third, in the preparation of fine chemicals, O-chloroethylbenzene is also indispensable. Such as the preparation of special fragrances, dyes, etc. Because its structure can be modified to meet the needs of different fine chemicals, it can enrich the types of fine chemicals and improve their quality and performance.
What are the physical properties of O-chloroethylbenzene?
O-chloroethylbenzene (O-chloroethylbenzene) is one of the organic compounds. Its physical properties are unique, let me talk about them one by one.
Looking at its properties, under room temperature and pressure, o-chloroethylbenzene is a colorless and transparent liquid, just like clear water. Its smell is quite special, with an aromatic smell, like a faint flower fragrance, but it is unique.
When it comes to the boiling point, it is about 179-184 ° C. At this temperature, o-chloroethylbenzene is like ice in the warm sun, quietly changing from liquid to gaseous state and rising. Its melting point is about -35 ° C. When the temperature drops to such a low temperature, it is like a sleeping crystal and solidifies into a solid state.
As for the density, at 20 ° C, it is about 1.070-1.076g/cm ³, which is slightly heavier than water. Just like a stone entering water, it will sink to the bottom. It is insoluble in water, and the two meet, like oil and water, distinct and incompatible with each other. However, it can be dissolved in organic solvents such as alcohols and ethers, just like fish entering water, and is freely compatible.
The vapor of o-chloroethylbenzene is heavier than air. If it escapes in the air, the vapor will spread close to the ground like a mist, and it is flammable. In case of open flames and hot topics, it is like dry firewood encountering hot fire, which is very easy to burn and explode. It is really dangerous. When storing and using, you need to be extremely cautious and must not take it lightly.
What is the chemistry of O-chloroethylbenzene?
O-chloroethylbenzene is also an organic compound. Its chemical properties are unique and worth studying.
In this compound, the chlorine atom is connected to the ortho-site of ethylbenzene, resulting in its properties being different from that of ethylbenzene. The chlorine atom has electron-absorbing properties, which can affect the electron cloud density of the benzene ring. Therefore, in the electrophilic substitution reaction, its activity is slightly different from that of ethylbenzene. The electron cloud density of the benzene ring varies with the chlorine atom, and the attack check point of the electrophilic reagent is also affected. Usually, the adjacent and para-sites are more vulnerable to electrophilic reagents due to the relatively high electron cloud density.
In chemical reactions, O-chloroethylbenzene can In the hydrolysis reaction, under suitable conditions, the chlorine atom can be replaced by the hydroxyl group to produce o-ethylphenol. This reaction depends on the alkaline environment, and the alkali can promote the departure of the chlorine atom, and the hydroxyl group can then be connected.
Nucleophilic substitution reaction can occur, and the nucleophilic test agent can attack the carbon atoms connected to chlorine, causing the chlorine atoms to leave and form new compounds. In addition, O-chloroethylbenzene also exhibits in the oxidation reaction, and the ethyl group of the side chain of the benzene ring can be oxidized. Depending on the conditions, oxygen-containing functional groups such as aldehyde or carboxyl groups can be formed.
Under light or heating conditions, O-chloroethylbenzene may also The hydrogen atom on the side chain ethyl group can be captured by the chlorine radical, triggering a series of free radical chain reactions to generate chlorinated products with different degrees of substitution. Its chemical properties are determined by its structure, and each reaction is related to each other. It has considerable application value in the field of organic synthesis and can be used as an intermediate to prepare a variety of organic compounds.
What is O-chloroethylbenzene production method?
The method of making o-chloroethylbenzene, through the ages, has many ways. The common one is to use benzene and chloroethane as raw materials, with the help of catalysts, to carry out Fu-gram alkylation reaction. In this reaction, commonly used catalysts, such as anhydrous aluminum trichloride, can promote the electrophilic substitution of the benzene ring with chloroethane, so that the ethyl group of chloroethane is connected to the benzene ring to obtain o-chloroethylbenzene.
When operating, first take an appropriate amount of benzene, place it in the reaction kettle, slowly add anhydrous aluminum trichloride, and stir well to form a catalytic system. Then, under appropriate temperature and pressure conditions, add chloroethane dropwise. During the reaction, close attention should be paid to changes in temperature to prevent overreaction. After the reaction is completed, the unreacted raw materials, catalysts and by-products are removed through the separation and purification process to obtain pure o-chloroethylbenzene.
In addition, there are also those who use o-chlorobenzene and ethylene as raw materials, under suitable catalyst and reaction conditions, through addition reaction. This approach also has advantages, but it requires high reaction conditions and a specific catalytic system. Preparation of o-chloroethylbenzene, according to actual needs and conditions, choose the appropriate method to achieve the purpose of efficient and high-quality production.
What are the precautions in storage and transportation of O-chloroethylbenzene?
O-chloroethylbenzene is an organic compound, and many matters need to be paid attention to during storage and transportation.
The first to bear the brunt, because of its flammability, the storage place must be kept away from fire and heat sources, and fireworks are strictly prohibited. The storage place should be well ventilated to avoid the formation of explosive mixed gases. The lighting, ventilation and other facilities of the warehouse must be explosion-proof, and the switch should be located outside the warehouse.
Furthermore, O-chloroethylbenzene is harmful to the human body, or irritates the eyes, respiratory tract and skin. Transportation and storage personnel must take protective measures, wear protective clothing, protective gloves and goggles, etc. If they come into contact accidentally, they should rinse with plenty of water quickly and seek medical attention in time.
In addition, its nature is relatively active, and it should be stored separately from oxidants, acids, and alkalis when storing, and mixed storage should be avoided. The handling process should be light and light to prevent material leakage due to damage to the packaging and containers.
In addition, the storage area should be equipped with suitable materials to contain leaks. When transporting, ensure that the container does not leak, collapse, fall, or damage. The transportation vehicle should be equipped with the corresponding variety and quantity of fire protection equipment and leakage emergency treatment equipment.
In short, in the storage and transportation of O-chloroethylbenzene, fire prevention, leakage prevention, contact prevention, and reasonable storage are all critical to ensure the safety of the process.