Linshang Chemical
PRODUCTS
M-Dichlorobenzene
Linshang Chemical
|
HS Code |
744727 |
| Chemical Formula | C6H4Cl2 |
| Molar Mass | 147.00 g/mol |
| Appearance | Colorless to yellowish liquid |
| Odor | Pungent, aromatic odor |
| Density | 1.288 g/cm³ at 20 °C |
| Melting Point | -24.7 °C |
| Boiling Point | 173.0 °C |
| Solubility In Water | Insoluble |
| Solubility In Organic Solvents | Soluble in ethanol, ether, benzene |
| Vapor Pressure | 1.33 kPa at 48.8 °C |
| Flash Point | 62 °C |
| Refractive Index | 1.5456 at 20 °C |
As an accredited M-Dichlorobenzene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 500g of M - dichlorobenzene packaged in a sealed, corrosion - resistant plastic bottle. |
| Storage | M - dichlorobenzene should be stored in a cool, well - ventilated area, away from heat and ignition sources. It should be in a tightly - sealed container to prevent vapor leakage. Store it separately from oxidizing agents and foodstuffs due to potential reactivity. Keep the storage area dry to avoid issues related to moisture - induced reactions. Regularly check for any signs of container damage. |
| Shipping | M - dichlorobenzene is shipped in tightly - sealed containers, compliant with hazardous chemical regulations. It's transported by specialized carriers, ensuring proper handling to prevent spills and safeguard environmental and human safety during transit. |
Competitive M-Dichlorobenzene prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615365006308 or mail to info@alchemist-chem.com.
We will respond to you as soon as possible.
Tel: +8615365006308
Email: info@alchemist-chem.com
Historical Development
The chemical industry is changing with each passing day, and there are many products, each with its own origin. Today, the history of M-Dichlorobenzene can also be investigated.
At the beginning, the research of chemistry was not yet prosperous, and everyone's exploration of organic synthesis was not deep, M-Dichlorobenzene was little known. Later, as the chemical technology gradually refined, researchers gained insight into its characteristics, and began to prepare methods. The initial preparation was cumbersome and inefficient, but the researchers were determined and worked tirelessly.
Years pass, the technology is new, and the preparation process is becoming more and more mature. From the optimization of raw material selection to the precise control of reaction conditions, there have been improvements. Its application is also expanding, emerging in the fields of medicine, materials and other fields, helping the industry move forward. Looking at its development, it is a microcosm of the chemical exploration process and a witness to the human spirit of knowledge and progress.
At the beginning, the research of chemistry was not yet prosperous, and everyone's exploration of organic synthesis was not deep, M-Dichlorobenzene was little known. Later, as the chemical technology gradually refined, researchers gained insight into its characteristics, and began to prepare methods. The initial preparation was cumbersome and inefficient, but the researchers were determined and worked tirelessly.
Years pass, the technology is new, and the preparation process is becoming more and more mature. From the optimization of raw material selection to the precise control of reaction conditions, there have been improvements. Its application is also expanding, emerging in the fields of medicine, materials and other fields, helping the industry move forward. Looking at its development, it is a microcosm of the chemical exploration process and a witness to the human spirit of knowledge and progress.
Product Overview
M-dichlorobenzene is an important category of chemistry. It is a colorless flowing liquid with a special odor. The boiling point is about 173 ° C and the melting point is -24.7 ° C. This substance is insoluble in water, but it can be miscible in organic solvents such as ethanol, ether, and chloroform.
M-dichlorobenzene has a wide range of industrial uses. It is often used as a raw material for organic synthesis and can be used to make fine chemicals such as pesticides, medicines, and dyes. In the field of pesticides, it helps to produce high-efficiency insecticides; in medicine, it is an intermediary for the synthesis of specific drugs.
And because of its certain volatility, it can be used as a solvent in some products to help dissolve other substances and optimize product performance. However, when using, it is necessary to pay attention to its toxicity, because it is harmful to the human body, or causes respiratory tract, skin irritation and other symptoms. Be careful in operation and follow safety procedures to ensure personal and environmental safety.
M-dichlorobenzene has a wide range of industrial uses. It is often used as a raw material for organic synthesis and can be used to make fine chemicals such as pesticides, medicines, and dyes. In the field of pesticides, it helps to produce high-efficiency insecticides; in medicine, it is an intermediary for the synthesis of specific drugs.
And because of its certain volatility, it can be used as a solvent in some products to help dissolve other substances and optimize product performance. However, when using, it is necessary to pay attention to its toxicity, because it is harmful to the human body, or causes respiratory tract, skin irritation and other symptoms. Be careful in operation and follow safety procedures to ensure personal and environmental safety.
Physical & Chemical Properties
M-dichlorobenzene, an organic compound. It is a colorless liquid with a special odor. The boiling point is about 173 degrees Celsius, the melting point is -24 degrees Celsius, and the density is 1.288 g/cm3.
In terms of its physical properties, it is insoluble in water, but easily soluble in organic solvents such as ethanol and ether. It has good volatility and can gradually evaporate at room temperature.
In terms of its chemical properties, the presence of the benzene ring endows it with aromatic properties, and many substitution reactions can occur. Due to the electron-absorbing properties of chlorine atoms, the electron cloud density of the benzene ring is reduced, and the electrophilic substitution reaction activity is slightly reduced. However, under suitable conditions, it can still be substituted with halogenating agents, nitrifying agents, etc., and new groups can be introduced into the ben This compound is widely used in the field of organic synthesis and can be used as an intermediate to prepare drugs, pesticides, etc., which is of great significance to the development of the chemical industry.
In terms of its physical properties, it is insoluble in water, but easily soluble in organic solvents such as ethanol and ether. It has good volatility and can gradually evaporate at room temperature.
In terms of its chemical properties, the presence of the benzene ring endows it with aromatic properties, and many substitution reactions can occur. Due to the electron-absorbing properties of chlorine atoms, the electron cloud density of the benzene ring is reduced, and the electrophilic substitution reaction activity is slightly reduced. However, under suitable conditions, it can still be substituted with halogenating agents, nitrifying agents, etc., and new groups can be introduced into the ben This compound is widely used in the field of organic synthesis and can be used as an intermediate to prepare drugs, pesticides, etc., which is of great significance to the development of the chemical industry.
Technical Specifications & Labeling
Nowadays, there is a substance name M-Dichlorobenzene. In industrial preparation and quality inspection, process specifications and standards (commodity parameters) are the key.
Its preparation process depends on a specific process. The reaction raw material ratio is accurate, and the operating conditions are rigorous, such as temperature and pressure, which should be in line with the specifications. In this way, a product of good quality can be obtained.
When quality inspection, a number of commodity parameters should be used as the basis. Appearance color, purity, impurity content, etc., all need to be tested in detail. Purity is a specific standard, and impurities must not exceed the limit before it can be a qualified product.
According to this process specification and standard (commodity parameters), the preparation and quality of M-Dichlorobenzene can be guaranteed, and it can only be used for industrial purposes.
Its preparation process depends on a specific process. The reaction raw material ratio is accurate, and the operating conditions are rigorous, such as temperature and pressure, which should be in line with the specifications. In this way, a product of good quality can be obtained.
When quality inspection, a number of commodity parameters should be used as the basis. Appearance color, purity, impurity content, etc., all need to be tested in detail. Purity is a specific standard, and impurities must not exceed the limit before it can be a qualified product.
According to this process specification and standard (commodity parameters), the preparation and quality of M-Dichlorobenzene can be guaranteed, and it can only be used for industrial purposes.
Preparation Method
The raw materials and production process of this method of making M-Dichlorobenzene are the key. Take an appropriate amount of benzene, use ferric chloride as a catalyst, and slowly react with chlorine. The reaction step is to first contact benzene and chlorine at a specific temperature to initiate a substitution reaction and gradually generate M-Dichlorobenzene.
In this process, it is necessary to precisely control the reaction temperature and chlorine entry rate. Too high or too low temperature and improper chlorine rate can cause more side reactions and affect the purity and yield of the product. In the production process, the reaction equipment must be corrosion-resistant to cope with the erosion of chlorine gas.
After the reaction is completed, through a series of separation and purification operations, such as distillation, extraction, etc., impurities are removed to obtain pure M-Dichlorobenzene. In this way, the product quality can be guaranteed and meet the needs of industrial applications.
In this process, it is necessary to precisely control the reaction temperature and chlorine entry rate. Too high or too low temperature and improper chlorine rate can cause more side reactions and affect the purity and yield of the product. In the production process, the reaction equipment must be corrosion-resistant to cope with the erosion of chlorine gas.
After the reaction is completed, through a series of separation and purification operations, such as distillation, extraction, etc., impurities are removed to obtain pure M-Dichlorobenzene. In this way, the product quality can be guaranteed and meet the needs of industrial applications.
Chemical Reactions & Modifications
Nowadays, there are chemical research on M-dichlorobenzene, and its chemical reaction and modification are very important. M-dichlorobenzene can obtain products with different characteristics through various reaction pathways.
In the reaction, temperature, pressure and catalyst are all key. Raising the temperature may promote the reaction rate to increase, or it may cause side reactions to occur. Changes in pressure also affect the reaction equilibrium. Selecting a suitable catalyst can reduce the activation energy of the reaction, making the reaction prone and highly selective. When
is modified, the introduction of specific groups can change its physical and chemical properties. If a hydrophilic group is introduced, its solubility in water can be increased; a conjugated structure can be introduced, or its optical properties can be improved. Repeated experiments were conducted to optimize reaction conditions and modification methods, so that M-dichlorobenzene products could achieve expected properties and be used in chemical industry.
In the reaction, temperature, pressure and catalyst are all key. Raising the temperature may promote the reaction rate to increase, or it may cause side reactions to occur. Changes in pressure also affect the reaction equilibrium. Selecting a suitable catalyst can reduce the activation energy of the reaction, making the reaction prone and highly selective. When
is modified, the introduction of specific groups can change its physical and chemical properties. If a hydrophilic group is introduced, its solubility in water can be increased; a conjugated structure can be introduced, or its optical properties can be improved. Repeated experiments were conducted to optimize reaction conditions and modification methods, so that M-dichlorobenzene products could achieve expected properties and be used in chemical industry.
Synonyms & Product Names
M-dichlorobenzene is the first substance in the chemical industry. It is also known as m-dichlorobenzene. This substance is widely used in the field of chemical industry. It is often a raw material for organic synthesis and is indispensable in medicine, pesticides, dyes and other industries.
Looking at its physical properties, it is colorless and transparent and has an aromatic gas. The melting and boiling point is fixed, and it is insoluble in water and easily soluble in organic solvents. Because of its stable structure and chemical properties,
The name of m-dichlorobenzene is common in the industry. As a trade name, it is also widely recognized. In the chemical production process, m-dichlorobenzene is a key intermediate. The preparation of many fine chemicals depends on this start. In the laboratory, chemists often use this as a basis to conduct various studies, hoping to develop new avenues, expand their applications, and contribute to the advancement of the chemical industry.
Looking at its physical properties, it is colorless and transparent and has an aromatic gas. The melting and boiling point is fixed, and it is insoluble in water and easily soluble in organic solvents. Because of its stable structure and chemical properties,
The name of m-dichlorobenzene is common in the industry. As a trade name, it is also widely recognized. In the chemical production process, m-dichlorobenzene is a key intermediate. The preparation of many fine chemicals depends on this start. In the laboratory, chemists often use this as a basis to conduct various studies, hoping to develop new avenues, expand their applications, and contribute to the advancement of the chemical industry.
Safety & Operational Standards
"Safety and Operation Specifications for M-dichlorobenzene Products"
M-dichlorobenzene is a common chemical in the chemical industry. Its unique characteristics are related to safety and operation standards, and cannot be ignored.
The most important thing about safety is storage. When placed in a cool and ventilated place, away from fire and heat sources. The warehouse temperature should not exceed 30 ° C, and the relative humidity should not exceed 80%. It must be stored separately from oxidants and edible chemicals, and mixed storage should not be avoided. The storage area should be equipped with suitable materials to contain leaks.
When operating, there are also norms. Operators must be specially trained and strictly abide by the operating procedures. It is recommended that the operator wear a self-priming filter gas mask (half mask), wear chemical safety glasses, wear anti-poison penetration work clothes, and wear rubber oil-resistant gloves. Avoid contact with oxidizing agents. Filling should control the flow rate, and there is a grounding device to prevent static electricity accumulation. When handling, it should be lightly loaded and unloaded to prevent damage to packaging and containers.
If there is an unfortunate leak, a small amount of leakage can be absorbed by sand, vermiculite or other inert materials. If there is a large amount of leakage, it is necessary to build a dike or dig a pit to contain it. Cover with foam to reduce steam disasters. Transfer to a tanker or special collector with an explosion-proof pump, recycle or transport to a waste treatment site for disposal.
In short, in the safety and operation of M-dichlorobenzene, we should be careful and follow the norms to ensure personnel safety, orderly production, and avoid disasters.
M-dichlorobenzene is a common chemical in the chemical industry. Its unique characteristics are related to safety and operation standards, and cannot be ignored.
The most important thing about safety is storage. When placed in a cool and ventilated place, away from fire and heat sources. The warehouse temperature should not exceed 30 ° C, and the relative humidity should not exceed 80%. It must be stored separately from oxidants and edible chemicals, and mixed storage should not be avoided. The storage area should be equipped with suitable materials to contain leaks.
When operating, there are also norms. Operators must be specially trained and strictly abide by the operating procedures. It is recommended that the operator wear a self-priming filter gas mask (half mask), wear chemical safety glasses, wear anti-poison penetration work clothes, and wear rubber oil-resistant gloves. Avoid contact with oxidizing agents. Filling should control the flow rate, and there is a grounding device to prevent static electricity accumulation. When handling, it should be lightly loaded and unloaded to prevent damage to packaging and containers.
If there is an unfortunate leak, a small amount of leakage can be absorbed by sand, vermiculite or other inert materials. If there is a large amount of leakage, it is necessary to build a dike or dig a pit to contain it. Cover with foam to reduce steam disasters. Transfer to a tanker or special collector with an explosion-proof pump, recycle or transport to a waste treatment site for disposal.
In short, in the safety and operation of M-dichlorobenzene, we should be careful and follow the norms to ensure personnel safety, orderly production, and avoid disasters.
Application Area
Nowadays, there is a chemical substance called M-dichlorobenzene. It is widely used and involves all domains. In the field of medicine, it is a raw material for making good medicines, helping to eliminate medical diseases, and saving people from illness. In the field of chemical industry, it is also an essential material for making all kinds of fine things, increasing the prosperity of industry.
In agriculture, it can be used as a deworming agent to ensure the safety of crops and help the harvest of grains. And its use in scientific research is also indispensable, providing a foundation for exploring the properties of substances and understanding the principles of chemistry.
This M-dichlorobenzene, with its uniqueness, has made great achievements in the fields of medicine, chemical industry, agriculture, and scientific research, promoting the progress of the world and benefiting the prosperity of people's lives.
In agriculture, it can be used as a deworming agent to ensure the safety of crops and help the harvest of grains. And its use in scientific research is also indispensable, providing a foundation for exploring the properties of substances and understanding the principles of chemistry.
This M-dichlorobenzene, with its uniqueness, has made great achievements in the fields of medicine, chemical industry, agriculture, and scientific research, promoting the progress of the world and benefiting the prosperity of people's lives.
Research & Development
Today there is a substance called M-dichlorobenzene. Our generation studied the research and development of this substance as a chemical researcher.
M-dichlorobenzene has a wide range of uses. In the chemical industry, it is a raw material for the synthesis of many important compounds, such as agricultural drugs, dyes, etc., and its work is very great.
We have investigated its properties in detail, observed its physical and chemical properties, and strived to accurately grasp. In the process of research and development, we are committed to optimizing its preparation process, hoping to improve the yield and reduce costs.
After repeated experiments, we have explored the effects of different reaction conditions, such as temperature, pressure, catalyst, etc. With unremitting efforts, we have gradually achieved something, and the process is improving day by day.
In the future, we will continue to study, expand its application scope, tap potential value, and contribute to the development of the chemical industry, promoting the research and development of this substance to a new height.
M-dichlorobenzene has a wide range of uses. In the chemical industry, it is a raw material for the synthesis of many important compounds, such as agricultural drugs, dyes, etc., and its work is very great.
We have investigated its properties in detail, observed its physical and chemical properties, and strived to accurately grasp. In the process of research and development, we are committed to optimizing its preparation process, hoping to improve the yield and reduce costs.
After repeated experiments, we have explored the effects of different reaction conditions, such as temperature, pressure, catalyst, etc. With unremitting efforts, we have gradually achieved something, and the process is improving day by day.
In the future, we will continue to study, expand its application scope, tap potential value, and contribute to the development of the chemical industry, promoting the research and development of this substance to a new height.
Toxicity Research
Study on the toxicity of m-dichlorobenzene (M-Dichlorobenzene), a commonly used chemical substance. I tried to immerse myself in the study of the toxicity of this substance. M-dichlorobenzene, with a clear color and a different taste, has a wide range of industrial uses.
However, its toxicity cannot be ignored. After various experiments, white rats may be exposed to it, or have respiratory diseases, even organ damage. If its qi enters the human lungs, it will feel uncomfortable at first, and it will hurt the lung collaterals for a long time. If the skin touches it, it may cause a red rash or itching.
Investigate the source of its toxicity, the molecular structure. The nature of chlorine atoms is active, and it is easy to disturb the biochemical order when entering the body. Although industrial production benefits from this substance, the protection strategy cannot be ignored. It is necessary to make those who operate this thing wear protective gear and walk in well-ventilated places in order to reduce its harm, ensure people's well-being, and promote the prosperity of industry without fear.
However, its toxicity cannot be ignored. After various experiments, white rats may be exposed to it, or have respiratory diseases, even organ damage. If its qi enters the human lungs, it will feel uncomfortable at first, and it will hurt the lung collaterals for a long time. If the skin touches it, it may cause a red rash or itching.
Investigate the source of its toxicity, the molecular structure. The nature of chlorine atoms is active, and it is easy to disturb the biochemical order when entering the body. Although industrial production benefits from this substance, the protection strategy cannot be ignored. It is necessary to make those who operate this thing wear protective gear and walk in well-ventilated places in order to reduce its harm, ensure people's well-being, and promote the prosperity of industry without fear.
Future Prospects
Nowadays, M-dichlorobenzene has unique properties and a wide range of uses. In the field of chemical industry, it is often used as a raw material to make all kinds of fine things. Although it has been used in the present, but our generation looks to the future, its development path is still wide.
Or it can emerge in the field of materials science, with its characteristics, the development of new materials, tough and special properties, suitable for aerospace, electronics and other frontier fields. It is also expected to make efforts in the field of medicine, providing a key foundation for the creation of new drugs and curing various difficult diseases.
Furthermore, with the advance of science and technology, M-dichlorobenzene may be able to be ingeniously converted to turn waste into treasure and contribute to the good of the environment. The future development is difficult to describe, but I firmly believe that it will be able to shine in various fields and open up new horizons.
Or it can emerge in the field of materials science, with its characteristics, the development of new materials, tough and special properties, suitable for aerospace, electronics and other frontier fields. It is also expected to make efforts in the field of medicine, providing a key foundation for the creation of new drugs and curing various difficult diseases.
Furthermore, with the advance of science and technology, M-dichlorobenzene may be able to be ingeniously converted to turn waste into treasure and contribute to the good of the environment. The future development is difficult to describe, but I firmly believe that it will be able to shine in various fields and open up new horizons.
Where to Buy M-Dichlorobenzene in China?
As a trusted M-Dichlorobenzene manufacturer, we deliver:
Factory-Direct Value: Competitive pricing with no middleman markups, tailored for bulk orders and project-scale requirements.
Technical Excellence: Precision-engineered solutions backed by R&D expertise, from formulation to end-to-end delivery.
Whether you need industrial-grade quantities or specialized customizations, our team ensures reliability at every stage—from initial specification to post-delivery support.
As a leading M-Dichlorobenzene 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 M-dichlorobenzene?
M-dichlorobenzene is an organic compound and has a wide range of uses. In the field of industry, it is an important chemical raw material. It can be used to synthesize many organic compounds, such as pesticides, medicines, and dyes.
When making pesticides, it can be used as a raw material to synthesize pesticides equivalent to insecticides and herbicides, and protect farmers and crops to help harvest. In the synthesis of medicine, it can be a key intermediate, and through various chemical reactions, it can be used to make good medicines for curing diseases and saving people. In the dye industry, it is also indispensable, providing a basis for the synthesis of colorful dyes, making fabrics and other materials colorful.
Furthermore, in the field of solvents, M-dichlorobenzene can also be used. Due to its good solubility, it can dissolve a variety of organic substances, so it is often used as an organic solvent, used in coatings, inks and other industries, to help paint evenly applied, so that the ink printing effect is better.
In addition, because of its relatively stable chemical properties, it can be used as a reaction medium in some specific chemical reactions, providing a suitable environment for the smooth progress of the reaction, promoting the efficient occurrence of chemical reactions, and is of great value in the research and production of organic synthetic chemistry.
What are the physical properties of M-dichlorobenzene?
M-dichlorobenzene, also known as m-dichlorobenzene, is a colorless and transparent liquid with a pungent odor. Its physical properties are as follows:
- ** Melting boiling point **: The melting point is about -24.7 ° C, and the boiling point is 173.0 ° C. This melting boiling point characteristic makes it a liquid at room temperature and pressure, but it can condense into a solid state at low temperature.
- ** Density **: The density is 1.2884g/mL, which is heavier than water, so it is placed in water and will sink to the bottom.
- ** Solubility **: It is difficult to dissolve in water, but it can be miscible with organic solvents such as ethanol, ether, and chloroform. The difference in solubility is due to the difference between its molecular structure and the molecular structure of water, but it is consistent with the molecular structure of organic solvents.
- ** Volatility **: It has a certain volatility and can be slowly volatilized in the air to produce an irritating odor. This characteristic is also related to the melting point, and its liquid state is easily converted into gaseous state for dissipation.
- ** Refractive index **: The refractive index is 1.5452. When light passes through, the direction changes. This optical property is of great significance in optical materials and some analytical methods.
To sum up, the unique physical properties of M-dichlorobenzene lay the foundation for its application in chemical, pharmaceutical and other fields.
What are the chemical properties of M-dichlorobenzene?
M - dichlorobenzene, known as m - dichlorobenzene in Chinese, is a derivative of benzene with two chlorine atoms attached at the 1,3 - positions on the benzene ring. Its chemical properties are as follows:
** 1. Physical Properties in the Realm of Solubility and State **
- It presents itself as a colorless to light - yellow liquid under standard conditions. It holds a characteristic aromatic odor, reminiscent of the benzene - like aroma, yet with a pungent undertone due to the presence of chlorine atoms. Regarding solubility, it is sparingly soluble in water. This is because water is a polar molecule, while m - dichlorobenzene is non - polar. According to the principle of "like dissolves like," non - polar m - dichlorobenzene has little affinity for polar water molecules. However, it shows good solubility in organic solvents such as ethanol, ether, and chloroform. These organic solvents are also non - polar or have relatively low polarity, enabling favorable intermolecular interactions with m - dichlorobenzene.
** 2. Chemical Reactivity in Substitution Reactions **
- The benzene ring in m - dichlorobenzene is electron - rich, despite the electron - withdrawing effect of the chlorine atoms. Chlorine is a deactivating group due to its inductive effect, but it is ortho - para directing in electrophilic aromatic substitution reactions. In m - dichlorobenzene, the remaining positions on the benzene ring can still undergo electrophilic substitution reactions. For instance, when reacting with electrophiles such as nitronium ions (\ (NO_ {2 }^{+}\)) in the presence of concentrated sulfuric acid and concentrated nitric acid, it can form nitro - substituted products. The reaction is regioselective. Due to the combined effect of the two chlorine atoms at the 1,3 - positions, the incoming electrophile is more likely to attack the positions that are ortho or para to one of the chlorine atoms, while avoiding the meta - positions relative to both chlorine atoms. This is because the resonance - stabilized intermediate carbocations formed during the reaction are more stable when the electrophile attacks at the ortho or para positions.
** 3. Stability and Resistance to Oxidation **
- M - dichlorobenzene is relatively stable under normal conditions and is resistant to oxidation by common oxidizing agents in the absence of specific catalysts or extreme reaction conditions. The benzene ring structure, with its delocalized\ (\ pi\) - electrons, imparts a certain degree of stability. The chlorine atoms, although electrons - withdrawing, do not significantly enhance the susceptibility of the molecules to oxidation. For example, it does not react readily with atmospheric oxygen or mild oxidants like potassium permanganate in aqueous solutions under normal temperature and pressure. However, under harsh conditions, such as high - temperature and the presence of strong oxidants like chromic acid in concentrated sulfuric acid, the benzene ring may be oxidized, leading to the destruction of the aromatic structure.
In summary, m - dichlorobenzene, with its unique structure due to the two chlorine atoms on the benzene ring, exhibits a set of physical and chemical properties that are characteristic of aromatic halogen - substituted compounds, including Specific solubility behavior, regioselective electrophilic substitution reactivity, and relative stability under normal conditions.
What is the production method of M-dichlorobenzene?
The method of making m-dichlorobenzene used benzene as the starting material in the past. First, benzene and chlorine are reacted under appropriate catalysts and conditions. This reaction is a chlorination reaction.
Common catalysts are iron filings or anhydrous ferric trichloride. During the reaction, chlorine atoms replace hydrogen atoms on the benzene ring. The chemical environment of the six hydrogen atoms of benzene is originally the same, but during the reaction process, due to factors such as space effects and electronic effects, the main generation of metachlorobenzene is metachlorobenzene.
The reaction conditions are also quite critical. The temperature needs to be precisely controlled and generally controlled within a certain range. If the temperature is too high, the side reactions will increase and the yield will decrease; if the temperature is too low, the reaction rate And the rate of chlorine gas introduction should also be moderate to ensure that the reaction is uniform and sufficient.
In addition, the product obtained after the reaction is often mixed with other isomers and unreacted raw materials. Therefore, a series of separation and purification steps are required, such as distillation, extraction, crystallization, etc. Distillation can initially separate according to the difference in the boiling point of each substance; extraction can transfer the target product from the mixed system to a specific solvent; crystallization can further purify the product, and finally obtain a relatively pure inter-dichlorobenzene. This is the approximate method for preparing m-dichlorobenzene.
What are the precautions for M-dichlorobenzene during use?
M-dichlorobenzene is also an organic compound. When it is used, many precautions cannot be ignored.
First safety protection. This substance has certain toxicity and can cause harm to human health. Therefore, when using it, it is necessary to wear appropriate protective equipment, such as gas masks, protective gloves, protective glasses, etc., to avoid contact with the skin and respiratory tract. The operation is suitable for well-ventilated places. If it is used in a closed space, poisonous gases will accumulate and be dangerous.
The second time is related to storage. It must be stored in a cool, dry and well-ventilated place, away from fire and heat sources. Because of its flammability, it can lead to the risk of combustion and explosion in case of open flames and hot topics. When stored separately from oxidants, edible chemicals, etc., it must not be mixed to prevent dangerous chemical reactions.
Furthermore, during use and operation, the operating procedures must be strictly followed. When taking it, the action should be stable and accurate, and beware of leakage. If there is a leak, emergency measures should be taken immediately. A small amount of leakage can be absorbed by inert materials such as sand and vermiculite; if there is a large amount of leakage, it is necessary to build a dike or dig a pit for containment, and transfer it to a special collector with an explosion-proof pump for recycling or transportation to a waste treatment site for disposal.
Again, its waste disposal cannot be ignored. It should not be dumped at will. When following relevant environmental protection regulations, it should be handed over to a qualified unit for disposal to avoid polluting the environment.
In conclusion, when using M-dichlorobenzene, it is necessary to exercise caution and be aware of its characteristics and precautions to ensure personal safety and environmental safety.
Scan to WhatsApp
