Linshang Chemical
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4-Amino-2,5-Dichlorobenzenesulphonic Acid
Linshang Chemical
|
HS Code |
671342 |
| Chemical Formula | C6H3Cl2NO3S |
| Molecular Weight | 242.06 |
| Appearance | Typically a solid (powder or crystalline form) |
| Solubility In Water | Somewhat soluble, solubility details would depend on conditions |
| Melting Point | Data would be needed from literature, usually in a specific temperature range |
| Boiling Point | Relevant boiling point data from reliable sources |
| Density | Value in g/cm³ from appropriate references |
| Acidity | Acidic nature due to the sulphonic acid group, pKa value from literature |
| Stability | Stable under normal conditions, but may react with strong oxidizing agents etc. |
| Odor | May have a characteristic odor, though often described as odorless or faint |
As an accredited 4-Amino-2,5-Dichlorobenzenesulphonic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 500g of 4 - amino - 2,5 - dichlorobenzenesulphonic Acid in sealed plastic bags for safe storage. |
| Storage | 4 - amino - 2,5 - dichlorobenzenesulphonic acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, open flames, and oxidizing agents. Store in a tightly closed container to prevent moisture absorption and contamination. Ensure storage areas are free from incompatible substances to avoid chemical reactions. |
| Shipping | 4 - amino - 2,5 - dichlorobenzenesulphonic acid is shipped in tightly - sealed, corrosion - resistant containers. Special handling precautions are taken to prevent spills, in compliance with chemical transportation safety regulations, ensuring secure transit. |
Competitive 4-Amino-2,5-Dichlorobenzenesulphonic 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-Amino-2,5-Dichlorobenzenesulphonic Acid in China?
As a trusted 4-Amino-2,5-Dichlorobenzenesulphonic 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-Amino-2,5-Dichlorobenzenesulphonic 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-amino-2, 5-dichlorobenzenesulphonic Acid?
4-Amino-2,5-dichlorobenzenesulfonic acid, which has a wide range of uses. In the dye industry, it is a key intermediate. Based on this, colorful azo dyes can be synthesized. These azo dyes shine in the field of textile printing and dyeing, and can give rich colors to fabrics, whether it is fabrics used in clothing or household textiles.
In the field of pharmaceuticals and chemicals, it is also of great value. It can be used as a starting material for the synthesis of specific drugs, converted into pharmacologically active compounds through a series of chemical reactions, and contributes to the research and development of pharmaceuticals.
In the manufacture of pigments, it is also indispensable. The pigments synthesized by it have excellent light resistance, weather resistance and other characteristics, and are widely used in coatings, inks and other products, so that the paint can maintain color for a long time, and the ink printing effect is more lasting and clear.
In addition, in the preparation of some fine chemical products, 4-amino-2,5-dichlorobenzenesulfonic acid also plays a key role as an important raw material or auxiliary, helping to produce fine chemical products with excellent performance.
In the field of pharmaceuticals and chemicals, it is also of great value. It can be used as a starting material for the synthesis of specific drugs, converted into pharmacologically active compounds through a series of chemical reactions, and contributes to the research and development of pharmaceuticals.
In the manufacture of pigments, it is also indispensable. The pigments synthesized by it have excellent light resistance, weather resistance and other characteristics, and are widely used in coatings, inks and other products, so that the paint can maintain color for a long time, and the ink printing effect is more lasting and clear.
In addition, in the preparation of some fine chemical products, 4-amino-2,5-dichlorobenzenesulfonic acid also plays a key role as an important raw material or auxiliary, helping to produce fine chemical products with excellent performance.
What are the physical properties of 4-amino-2, 5-dichlorobenzenesulphonic Acid?
4-Amino-2,5-dichlorobenzenesulfonic acid, this is an organic compound. Its physical properties are crucial and related to many practical applications.
Looking at its appearance, it is mostly white to beige crystalline powder at room temperature and pressure. This form is easy to store and transport, and is easy to handle in subsequent processing and use.
In terms of melting point, it is about a specific temperature range. The characteristics of melting point are of great significance in the identification of this compound and the study of phase transition under different temperature conditions. Before reaching the melting point, the substance exists stably in a solid state; when the temperature rises to the melting point, the transition from solid state to liquid state occurs, which has a profound impact on its application in specific processes.
Solubility is also one of the important physical properties. It has a certain solubility in water. As a common solvent, the dissolution of the substance in water determines its dispersion and reaction behavior in aqueous systems. In some chemical synthesis or industrial production processes, if it needs to be operated in an aqueous solution environment, its solubility in water becomes a key consideration.
As for density, it has a specific value. The property of density plays a role in many practical scenarios. For example, when it involves operations such as mixing and separation of substances, it can be treated according to the difference between its density and other substances. In addition, density is also closely related to practical issues such as the accumulation method and storage volume of substances.
Furthermore, the stability of the substance also belongs to the category of physical properties. Under normal conditions, it has a certain stability, but may change in case of specific environmental factors, such as high temperature, strong light, etc. Understanding its stability is essential for rational storage and use of the substance, so as to avoid changes in its properties due to external factors and affect the use effect.
Looking at its appearance, it is mostly white to beige crystalline powder at room temperature and pressure. This form is easy to store and transport, and is easy to handle in subsequent processing and use.
In terms of melting point, it is about a specific temperature range. The characteristics of melting point are of great significance in the identification of this compound and the study of phase transition under different temperature conditions. Before reaching the melting point, the substance exists stably in a solid state; when the temperature rises to the melting point, the transition from solid state to liquid state occurs, which has a profound impact on its application in specific processes.
Solubility is also one of the important physical properties. It has a certain solubility in water. As a common solvent, the dissolution of the substance in water determines its dispersion and reaction behavior in aqueous systems. In some chemical synthesis or industrial production processes, if it needs to be operated in an aqueous solution environment, its solubility in water becomes a key consideration.
As for density, it has a specific value. The property of density plays a role in many practical scenarios. For example, when it involves operations such as mixing and separation of substances, it can be treated according to the difference between its density and other substances. In addition, density is also closely related to practical issues such as the accumulation method and storage volume of substances.
Furthermore, the stability of the substance also belongs to the category of physical properties. Under normal conditions, it has a certain stability, but may change in case of specific environmental factors, such as high temperature, strong light, etc. Understanding its stability is essential for rational storage and use of the substance, so as to avoid changes in its properties due to external factors and affect the use effect.
What is the synthesis method of 4-amino-2, 5-dichlorobenzenesulphonic Acid?
The synthesis method of 4-amino-2,5-dichlorobenzenesulfonic acid is as follows:
First take an appropriate amount of 2,5-dichlorobenzenesulfonic acid and place it in the reactor. Use an appropriate amount of concentrated sulfuric acid as a sulfonating agent and slowly add it to the reactor. This process should pay attention to the control of temperature, preferably at a low temperature, about 0-5 ° C, to prevent side reactions. After adding, maintain this low temperature environment and stir the reaction number to make the reaction sufficient. This step of the reaction is to replace the hydrogen in the amino ortho position with the sulfonic acid group, thereby generating the intermediate of 4-amino-2,5-dichlorobenzenesulfonic acid.
Subsequently, the reaction system is heated to an appropriate temperature, about 100-120 ° C, and the reaction is continued to be stirred for a period of time to make the reaction more complete. When the reaction is completed, the reaction liquid is slowly poured into a large amount of ice water and diluted. This process needs to be handled carefully to avoid severe exothermic. After that, the precipitated solid can be collected by filtration and washed with an appropriate amount of cold water to remove impurities.
The resulting solid is crude 4-amino-2,5-dichlorobenzenesulfonic acid. In order to obtain a pure product, recrystallization can be performed. Select an appropriate solvent, such as ethanol-water mixed solvent, dissolve the crude product, heat it until it is completely dissolved, and filter it hot to remove insoluble impurities. The filtrate is cooled to allow the crystals to slowly precipitate out, filter again to collect the crystals, and dry to obtain pure 4-amino-2,5-dichlorobenzenesulfonic acid. Throughout the synthesis process, attention must be paid to the precise control of the reaction conditions and the standard operation of each step, so that the ideal product can be obtained.
First take an appropriate amount of 2,5-dichlorobenzenesulfonic acid and place it in the reactor. Use an appropriate amount of concentrated sulfuric acid as a sulfonating agent and slowly add it to the reactor. This process should pay attention to the control of temperature, preferably at a low temperature, about 0-5 ° C, to prevent side reactions. After adding, maintain this low temperature environment and stir the reaction number to make the reaction sufficient. This step of the reaction is to replace the hydrogen in the amino ortho position with the sulfonic acid group, thereby generating the intermediate of 4-amino-2,5-dichlorobenzenesulfonic acid.
Subsequently, the reaction system is heated to an appropriate temperature, about 100-120 ° C, and the reaction is continued to be stirred for a period of time to make the reaction more complete. When the reaction is completed, the reaction liquid is slowly poured into a large amount of ice water and diluted. This process needs to be handled carefully to avoid severe exothermic. After that, the precipitated solid can be collected by filtration and washed with an appropriate amount of cold water to remove impurities.
The resulting solid is crude 4-amino-2,5-dichlorobenzenesulfonic acid. In order to obtain a pure product, recrystallization can be performed. Select an appropriate solvent, such as ethanol-water mixed solvent, dissolve the crude product, heat it until it is completely dissolved, and filter it hot to remove insoluble impurities. The filtrate is cooled to allow the crystals to slowly precipitate out, filter again to collect the crystals, and dry to obtain pure 4-amino-2,5-dichlorobenzenesulfonic acid. Throughout the synthesis process, attention must be paid to the precise control of the reaction conditions and the standard operation of each step, so that the ideal product can be obtained.
What are the precautions for 4-amino-2, 5-dichlorobenzenesulphonic Acid in storage and transportation?
4-Amino-2,5-dichlorobenzenesulfonic acid is a chemical substance. During storage and transportation, many matters need to be paid attention to.
First, when storing, it must choose a dry and well-ventilated place. This is because if the substance is in a humid environment, it is prone to moisture deterioration, causing its chemical properties to change, affecting its quality and utility. The humidity of the warehouse should be controlled within a certain range to prevent the risk of moisture solution.
Second, temperature is also the key. Do not leave it in a high temperature place, because of high temperature or chemical reactions, or even safety risks. It should be stored in a place where the temperature is relatively constant and suitable, usually at room temperature. However, the specific temperature limit should be determined according to its characteristics and relevant standards.
Third, the storage must be kept away from fire and heat sources. This substance may have flammable or other dangerous characteristics. In case of fire or high temperature, it is easy to cause serious accidents such as fire or explosion.
Fourth, the packaging must be strong and tight during transportation. To prevent the package from being damaged during transportation due to bumps, collisions, etc., and the material leaks. Leakage will not only damage the goods, but may also cause harm to the environment and surrounding personnel.
Fifth, the transportation vehicle must also be clean and free of other substances that may react with it. Due to the occasional adverse reactions of different chemical substances, it is essential to maintain the cleanliness and suitability of the means of transportation. Transport personnel should also be familiar with the characteristics of the substance and emergency treatment methods. In case of emergencies, they can be disposed of in a timely and proper manner to ensure the safety of transportation.
First, when storing, it must choose a dry and well-ventilated place. This is because if the substance is in a humid environment, it is prone to moisture deterioration, causing its chemical properties to change, affecting its quality and utility. The humidity of the warehouse should be controlled within a certain range to prevent the risk of moisture solution.
Second, temperature is also the key. Do not leave it in a high temperature place, because of high temperature or chemical reactions, or even safety risks. It should be stored in a place where the temperature is relatively constant and suitable, usually at room temperature. However, the specific temperature limit should be determined according to its characteristics and relevant standards.
Third, the storage must be kept away from fire and heat sources. This substance may have flammable or other dangerous characteristics. In case of fire or high temperature, it is easy to cause serious accidents such as fire or explosion.
Fourth, the packaging must be strong and tight during transportation. To prevent the package from being damaged during transportation due to bumps, collisions, etc., and the material leaks. Leakage will not only damage the goods, but may also cause harm to the environment and surrounding personnel.
Fifth, the transportation vehicle must also be clean and free of other substances that may react with it. Due to the occasional adverse reactions of different chemical substances, it is essential to maintain the cleanliness and suitability of the means of transportation. Transport personnel should also be familiar with the characteristics of the substance and emergency treatment methods. In case of emergencies, they can be disposed of in a timely and proper manner to ensure the safety of transportation.
What are the effects of 4-amino-2, 5-dichlorobenzenesulphonic Acid on the environment?
4-Amino-2,5-dichlorobenzenesulfonic acid is one of the chemical substances. Its impact on the environment is quite complicated, let me explain in detail.
If this substance is released in water, it can cause water quality to deteriorate. Because it has certain chemical activity or reacts with other substances in the water, it changes the chemical composition of the water body. Aquatic organisms bear the brunt, or due to changes in water quality, their living environment deteriorates. Aquatic organisms such as fish, or due to changes in water chemistry, breathing difficulties, and even poisoning and death, affect the balance and stability of aquatic ecosystems.
If in soil, 4-amino-2,5-dichlorobenzenesulfonic acid may affect soil fertility and structure. It may interfere with the normal activities of soil microorganisms, which are crucial in soil material circulation and nutrient transformation. The existence of this substance may inhibit the growth and reproduction of microorganisms, slow down the decomposition of organic matter in the soil, and prevent the effective release of nutrients, causing plant growth to be hindered and affecting crop yield and quality.
In the atmosphere, although its volatilization may be limited, it should not be underestimated. If it exists in the atmosphere in the form of gaseous or attached particles, after inhalation, it may irritate the respiratory tract, causing cough, asthma and other discomfort. Long-term exposure may cause damage to the human respiratory system and immune system, endangering human health.
Furthermore, 4-amino-2,5-dichlorobenzenesulfonic acid may be difficult to degrade in the environment and accumulate for a long time, and its impact range may continue to expand, extending from the local environment to the regional and even the global ecosystem. Therefore, the use and discharge of this substance should be cautious to prevent irreversible damage to the environment.
If this substance is released in water, it can cause water quality to deteriorate. Because it has certain chemical activity or reacts with other substances in the water, it changes the chemical composition of the water body. Aquatic organisms bear the brunt, or due to changes in water quality, their living environment deteriorates. Aquatic organisms such as fish, or due to changes in water chemistry, breathing difficulties, and even poisoning and death, affect the balance and stability of aquatic ecosystems.
If in soil, 4-amino-2,5-dichlorobenzenesulfonic acid may affect soil fertility and structure. It may interfere with the normal activities of soil microorganisms, which are crucial in soil material circulation and nutrient transformation. The existence of this substance may inhibit the growth and reproduction of microorganisms, slow down the decomposition of organic matter in the soil, and prevent the effective release of nutrients, causing plant growth to be hindered and affecting crop yield and quality.
In the atmosphere, although its volatilization may be limited, it should not be underestimated. If it exists in the atmosphere in the form of gaseous or attached particles, after inhalation, it may irritate the respiratory tract, causing cough, asthma and other discomfort. Long-term exposure may cause damage to the human respiratory system and immune system, endangering human health.
Furthermore, 4-amino-2,5-dichlorobenzenesulfonic acid may be difficult to degrade in the environment and accumulate for a long time, and its impact range may continue to expand, extending from the local environment to the regional and even the global ecosystem. Therefore, the use and discharge of this substance should be cautious to prevent irreversible damage to the environment.
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