Linshang Chemical
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4-Chlorobenzenesulfonic Acid
Linshang Chemical
|
HS Code |
206036 |
| Chemical Formula | C6H5ClO3S |
| Molar Mass | 192.62 g/mol |
| Appearance | White to yellowish crystals |
| Odor | Odorless |
| Solubility In Water | Soluble |
| Density | 1.66 g/cm³ |
| Melting Point | 62 - 69 °C |
| Boiling Point | Decomposes |
| Acidity Pka | 1.39 |
As an accredited 4-Chlorobenzenesulfonic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 500g of 4 - chlorobenzenesulfonic Acid packaged in a sealed plastic - lined paper bag. |
| Storage | 4 - Chlorobenzenesulfonic acid should be stored in a cool, dry, well - ventilated area, away from heat sources and ignition sources. Keep it in tightly - sealed containers to prevent moisture absorption and contact with air. Store it separately from oxidizing agents, reducing agents, and bases to avoid potential chemical reactions. |
| Shipping | 4 - Chlorobenzenesulfonic Acid should be shipped in tightly - sealed, corrosion - resistant containers. It must be transported in accordance with hazardous chemical regulations, ensuring proper labeling and separation from incompatible substances. |
Competitive 4-Chlorobenzenesulfonic Acid 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.
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Tel: +8615365006308
Email: info@alchemist-chem.com
Where to Buy 4-Chlorobenzenesulfonic Acid in China?
As a trusted 4-Chlorobenzenesulfonic Acid manufacturer, we deliver:
Factory-Direct Value: Competitive pricing with no middleman markups, tailored for bulk orders and project-scale requirements.
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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 4-Chlorobenzenesulfonic Acid 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 4-chlorobenzenesulfonic Acid?
4-Chlorobenzenesulfonic acid is a class of organic compounds. It has a wide range of uses and is used in various fields.
First in the dye industry. In the past, the preparation of dyes was related to people's livelihood, and the brilliance of color was related to the beauty of fabrics. 4-Chlorobenzenesulfonic acid can be an important intermediate in the middle. Based on it, various colorful dyes can be derived through various delicate chemical reactions. Due to the characteristics of chlorine atoms and sulfonic acid groups in its structure, dye molecules can be easily combined with fabric fibers, and the color fixing effect is quite good. The dyed fabric is bright and lasting, and it will not fade for a long time. It can meet the world's high demand for clothing color.
Furthermore, in the field of pharmaceutical synthesis. The development of medicine, drug preparation is crucial. 4-chlorobenzenesulfonic acid can be used as a key raw material to participate in the synthesis of many drugs. Its chemical properties are active, and it can react with a variety of compounds to build complex drug molecular structures. For example, some antibacterial drugs with specific curative effects, anti-inflammatory drugs, etc., in their synthesis steps, 4-chlorobenzenesulfonic acid is often an indispensable ingredient, helping to synthesize drugs with precise pharmacological activity to cure various diseases and relieve the pain of the world.
In the preparation of surfactants, 4-chlorobenzenesulfonic acid also has its function. Surfactants are widely used in daily chemical industries, such as common detergents. 4-Chlorobenzenesulfonic acid participates in it, which can optimize the performance of surfactants. Due to the characteristics of sulfonic acid groups, it can enhance the hydrophilicity and dispersion of surfactants, making detergents more easily soluble and dispersed in water, thereby improving the decontamination ability, making the washed goods as clean as new, and contributing greatly to the daily cleaning of the people.
In addition, in the research field of organic synthetic chemistry, 4-chlorobenzenesulfonic acid is an important reagent and is often relied upon by chemists. With its unique chemical structure and reactivity, chemists can conduct many novel chemical reaction studies, explore new synthesis methods and paths, promote the continuous development of organic chemistry, and lay the foundation for the development of more new materials, drugs, etc., which is of great significance in the path of scientific progress.
First in the dye industry. In the past, the preparation of dyes was related to people's livelihood, and the brilliance of color was related to the beauty of fabrics. 4-Chlorobenzenesulfonic acid can be an important intermediate in the middle. Based on it, various colorful dyes can be derived through various delicate chemical reactions. Due to the characteristics of chlorine atoms and sulfonic acid groups in its structure, dye molecules can be easily combined with fabric fibers, and the color fixing effect is quite good. The dyed fabric is bright and lasting, and it will not fade for a long time. It can meet the world's high demand for clothing color.
Furthermore, in the field of pharmaceutical synthesis. The development of medicine, drug preparation is crucial. 4-chlorobenzenesulfonic acid can be used as a key raw material to participate in the synthesis of many drugs. Its chemical properties are active, and it can react with a variety of compounds to build complex drug molecular structures. For example, some antibacterial drugs with specific curative effects, anti-inflammatory drugs, etc., in their synthesis steps, 4-chlorobenzenesulfonic acid is often an indispensable ingredient, helping to synthesize drugs with precise pharmacological activity to cure various diseases and relieve the pain of the world.
In the preparation of surfactants, 4-chlorobenzenesulfonic acid also has its function. Surfactants are widely used in daily chemical industries, such as common detergents. 4-Chlorobenzenesulfonic acid participates in it, which can optimize the performance of surfactants. Due to the characteristics of sulfonic acid groups, it can enhance the hydrophilicity and dispersion of surfactants, making detergents more easily soluble and dispersed in water, thereby improving the decontamination ability, making the washed goods as clean as new, and contributing greatly to the daily cleaning of the people.
In addition, in the research field of organic synthetic chemistry, 4-chlorobenzenesulfonic acid is an important reagent and is often relied upon by chemists. With its unique chemical structure and reactivity, chemists can conduct many novel chemical reaction studies, explore new synthesis methods and paths, promote the continuous development of organic chemistry, and lay the foundation for the development of more new materials, drugs, etc., which is of great significance in the path of scientific progress.
What are the physical properties of 4-chlorobenzenesulfonic Acid?
4-Chlorobenzenesulfonic acid is also an organic compound. It has a sulfonic acid group and a chlorine atom on the benzene ring. In terms of its physical properties, it is mostly in a white crystalline state at room temperature and is highly soluble in water. Because the sulfonic acid group is a strong hydrophilic group, it can form hydrogen bonds with water molecules, so it has good solubility in water.
Looking at its melting point, it is about 133-137 ° C. Due to the intermolecular forces and crystal structure, it presents this specific melting point range. Its boiling point is also higher. Due to the existence of various forces between molecules, such as van der Waals forces and hydrogen bonds, in order to make it boil into a gaseous state, more energy needs to be supplied to overcome these forces. The smell of 4-chlorobenzenesulfonic acid is slightly irritating, which is due to the chemical properties of some groups in its molecular structure. And because it is acidic, it is easy to absorb moisture and deliquescence in the air, and the sulfonic acid group can interact with water vapor in the air, causing its properties to change. And because it can ionize hydrogen ions in water, the aqueous solution is acidic and can conduct electricity, which is also a manifestation of its important physical properties.
Looking at its melting point, it is about 133-137 ° C. Due to the intermolecular forces and crystal structure, it presents this specific melting point range. Its boiling point is also higher. Due to the existence of various forces between molecules, such as van der Waals forces and hydrogen bonds, in order to make it boil into a gaseous state, more energy needs to be supplied to overcome these forces. The smell of 4-chlorobenzenesulfonic acid is slightly irritating, which is due to the chemical properties of some groups in its molecular structure. And because it is acidic, it is easy to absorb moisture and deliquescence in the air, and the sulfonic acid group can interact with water vapor in the air, causing its properties to change. And because it can ionize hydrogen ions in water, the aqueous solution is acidic and can conduct electricity, which is also a manifestation of its important physical properties.
What are the chemical properties of 4-chlorobenzenesulfonic Acid?
4-Chlorobenzenesulfonic acid is also an organic compound. Its properties are universal to acids, and it is acidic. It can react with bases to neutralize and produce corresponding salts and water. If it interacts with sodium hydroxide, sodium 4-chlorobenzenesulfonic acid is obtained with water.
This substance has the characteristics of a sulfonyl group, and the sulfonyl group has strong hydrophilicity. Therefore, 4-chlorobenzenesulfonic acid can be soluble in water and can partially ionize in water, releasing hydrogen ions, causing the solution to be acidic.
And because it contains chlorine atoms, under specific conditions, chlorine atoms can participate in the substitution reaction. For example, under appropriate reagents and reaction conditions, chlorine atoms can be replaced by other groups, such as hydroxy groups, to generate 4-hydroxybenzenesulfonic acid.
Furthermore, the benzene ring structure of 4-chlorobenzenesulfonic acid allows it to participate in typical reactions of aromatic hydrocarbons, such as electrophilic substitution reactions. Because the sulfonyl group is a blunt group, the electron cloud density of the benzene ring is reduced, and the electrophilic substitution reaction activity is slightly weaker than that of benzene. However, under suitable conditions, substitution can still occur at specific positions on the benzene ring, such as ortho-site or para-site substitution reactions. The chemical properties of 4-chlorobenzenesulfonic acid are relatively stable, and it is not easy to decompose spontaneously in the general environment. However, when encountering specific substances such as strong oxidants, reactions such as oxidation may occur, resulting in molecular structure changes. Its chemical properties have important uses and research value in many fields such as organic synthesis, drug development, and materials science.
This substance has the characteristics of a sulfonyl group, and the sulfonyl group has strong hydrophilicity. Therefore, 4-chlorobenzenesulfonic acid can be soluble in water and can partially ionize in water, releasing hydrogen ions, causing the solution to be acidic.
And because it contains chlorine atoms, under specific conditions, chlorine atoms can participate in the substitution reaction. For example, under appropriate reagents and reaction conditions, chlorine atoms can be replaced by other groups, such as hydroxy groups, to generate 4-hydroxybenzenesulfonic acid.
Furthermore, the benzene ring structure of 4-chlorobenzenesulfonic acid allows it to participate in typical reactions of aromatic hydrocarbons, such as electrophilic substitution reactions. Because the sulfonyl group is a blunt group, the electron cloud density of the benzene ring is reduced, and the electrophilic substitution reaction activity is slightly weaker than that of benzene. However, under suitable conditions, substitution can still occur at specific positions on the benzene ring, such as ortho-site or para-site substitution reactions. The chemical properties of 4-chlorobenzenesulfonic acid are relatively stable, and it is not easy to decompose spontaneously in the general environment. However, when encountering specific substances such as strong oxidants, reactions such as oxidation may occur, resulting in molecular structure changes. Its chemical properties have important uses and research value in many fields such as organic synthesis, drug development, and materials science.
What is the preparation method of 4-chlorobenzenesulfonic Acid?
The preparation method of 4-chlorobenzenesulfonic acid, although the ancient books do not directly describe this specific substance, can be analogous to the method of similar chemical industry.
To prepare 4-chlorobenzenesulfonic acid, benzenesulfonic acid is often used as the starting material, supplemented by chlorine-containing reagents, and obtained by substitution. The method is as follows:
Take an appropriate amount of benzenesulfonic acid and place it in a clean reactor. The kettle needs to be temperature-resistant and temperature-controlled. Slowly add chlorinated reagents, such as phosphorus trichloride, phosphorus pentachloride, etc., or introduce chlorine gas into the kettle. The amount of chlorinated reagents needs to be precisely prepared according to the reaction ratio. Too much or too little will affect the quality and quantity of the product.
When reacting If the temperature is too low, the reaction will be slow and take a long time; if the temperature is too high, or side reactions will occur, resulting in impure products. Generally speaking, the reaction temperature is usually controlled between [X] ° C and [X] ° C. During the reaction, it is necessary to use a stirring instrument to stir at a constant speed to make the reactants fully contact and promote the reaction to proceed uniformly.
After the reaction is completed, the product may contain unreacted raw materials, by-products and impurities. At this time, the steps of separation and purification are required. Volatile impurities can be removed by distillation first; and then recrystallization is used to further purify the product. When recrystallizing, it is essential to choose a suitable solvent, so that the product is easily soluble at high temperatures and difficult to dissolve at low temperatures, and the solvent does not react chemically with the product. After several recrystallization, pure 4-chlorobenzenesulfonic acid can be obtained.
In addition, chlorobenzene is also used as the starting material. First, the chlorobenzene is reacted with fuming sulfuric acid, and the fuming sulfuric acid provides a sulfonic acid group to achieve sulfation. This process also requires fine temperature control and stirring. The post-reaction treatment is also as above. After separation and purification, 4-chlorobenzenesulfonic acid is finally obtained.
To prepare 4-chlorobenzenesulfonic acid, benzenesulfonic acid is often used as the starting material, supplemented by chlorine-containing reagents, and obtained by substitution. The method is as follows:
Take an appropriate amount of benzenesulfonic acid and place it in a clean reactor. The kettle needs to be temperature-resistant and temperature-controlled. Slowly add chlorinated reagents, such as phosphorus trichloride, phosphorus pentachloride, etc., or introduce chlorine gas into the kettle. The amount of chlorinated reagents needs to be precisely prepared according to the reaction ratio. Too much or too little will affect the quality and quantity of the product.
When reacting If the temperature is too low, the reaction will be slow and take a long time; if the temperature is too high, or side reactions will occur, resulting in impure products. Generally speaking, the reaction temperature is usually controlled between [X] ° C and [X] ° C. During the reaction, it is necessary to use a stirring instrument to stir at a constant speed to make the reactants fully contact and promote the reaction to proceed uniformly.
After the reaction is completed, the product may contain unreacted raw materials, by-products and impurities. At this time, the steps of separation and purification are required. Volatile impurities can be removed by distillation first; and then recrystallization is used to further purify the product. When recrystallizing, it is essential to choose a suitable solvent, so that the product is easily soluble at high temperatures and difficult to dissolve at low temperatures, and the solvent does not react chemically with the product. After several recrystallization, pure 4-chlorobenzenesulfonic acid can be obtained.
In addition, chlorobenzene is also used as the starting material. First, the chlorobenzene is reacted with fuming sulfuric acid, and the fuming sulfuric acid provides a sulfonic acid group to achieve sulfation. This process also requires fine temperature control and stirring. The post-reaction treatment is also as above. After separation and purification, 4-chlorobenzenesulfonic acid is finally obtained.
4-chlorobenzenesulfonic Acid in storage and transportation
4-Chlorobenzenesulfonic acid is a chemical substance, and many things should be paid attention to when storing and transporting it.
First, the storage place must be dry and well ventilated. This is because 4-chlorobenzenesulfonic acid is easy to absorb moisture and deteriorate if placed in a humid place, affecting its quality. For example, in humid places in the south, if the storage environment is poor, the substance may appear deliquescent and other conditions. And poor ventilation can easily lead to the accumulation of harmful gases, endangering the safety of the surrounding area.
Second, keep away from fire and heat sources. 4-Chlorobenzenesulfonic acid is not flammable, but it may cause dangerous reactions or even explosions when heated or exposed to open flames. Just as the ancients said that "water and fire are ruthless", in the field of chemistry, the impact of fire and heat on substances should not be underestimated.
Third, it should be stored separately from oxidants and bases. 4-chlorobenzenesulfonic acid will oxidize with oxidants and neutralize with bases, which will cause substances to fail and even cause danger. As the ancients said, "things have their own characteristics, and each other resists each other." Different chemicals also follow this path.
Fourth, when transporting, it is necessary to ensure that the packaging is complete and safely loaded. Damage to the packaging can easily cause 4-chlorobenzenesulfonic acid to leak, pollute the environment and harm the human body. Unstable loading can cause accidents during transportation or due to bumps and collisions.
Fifth, the transport vehicle should be equipped with the corresponding variety and quantity of fire fighting equipment and leakage emergency treatment equipment. In case of leakage or fire and other accidents, it can be responded to in time. If you march in ancient times, you must bring grain and weapons for emergencies.
In short, the storage and transportation of 4-chlorobenzenesulfonic acid should be treated with caution and follow relevant norms and requirements to ensure personnel safety, environmental safety and material quality.
First, the storage place must be dry and well ventilated. This is because 4-chlorobenzenesulfonic acid is easy to absorb moisture and deteriorate if placed in a humid place, affecting its quality. For example, in humid places in the south, if the storage environment is poor, the substance may appear deliquescent and other conditions. And poor ventilation can easily lead to the accumulation of harmful gases, endangering the safety of the surrounding area.
Second, keep away from fire and heat sources. 4-Chlorobenzenesulfonic acid is not flammable, but it may cause dangerous reactions or even explosions when heated or exposed to open flames. Just as the ancients said that "water and fire are ruthless", in the field of chemistry, the impact of fire and heat on substances should not be underestimated.
Third, it should be stored separately from oxidants and bases. 4-chlorobenzenesulfonic acid will oxidize with oxidants and neutralize with bases, which will cause substances to fail and even cause danger. As the ancients said, "things have their own characteristics, and each other resists each other." Different chemicals also follow this path.
Fourth, when transporting, it is necessary to ensure that the packaging is complete and safely loaded. Damage to the packaging can easily cause 4-chlorobenzenesulfonic acid to leak, pollute the environment and harm the human body. Unstable loading can cause accidents during transportation or due to bumps and collisions.
Fifth, the transport vehicle should be equipped with the corresponding variety and quantity of fire fighting equipment and leakage emergency treatment equipment. In case of leakage or fire and other accidents, it can be responded to in time. If you march in ancient times, you must bring grain and weapons for emergencies.
In short, the storage and transportation of 4-chlorobenzenesulfonic acid should be treated with caution and follow relevant norms and requirements to ensure personnel safety, environmental safety and material quality.
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