M-Aminobenzenesulfonic Acid

Lingxian Chemical

Specifications

HS Code	230861
Chemical Formula	C6H7NO3S
Molar Mass	173.19 g/mol
Appearance	white to light - yellow crystals or powder
Solubility In Water	soluble
Melting Point	288 - 290 °C
Odor	odorless
Density	1.48 g/cm³
Ph Aqueous Solution	acidic
Stability	stable under normal conditions
Sensitivity	sensitive to strong oxidizing agents

Packing & Storage

Packing	500 - gram pack of M - Aminobenzenesulfonic Acid in air - tight chemical - grade packaging.
Storage	M - Aminobenzenesulfonic Acid should be stored in a cool, dry, well - ventilated area, away from sources of heat and ignition. Keep it in tightly closed containers to prevent moisture absorption and contamination. Store separately from oxidizing agents and bases as it can react with them. This helps maintain its chemical integrity and safety during storage.
Shipping	M - Aminobenzenesulfonic Acid should be shipped in tightly - sealed containers, safeguarded from moisture and heat. Ensure compliance with regulations for transporting chemical substances to prevent any spillage or damage during transit.

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General Information

Historical Development

M-Aminobenzenesulfonic Acid, the compound of sulfonic acid is also. Tracing its historical development, early chemists have explored this compound when they studied it. In the past, chemical skills were not as sophisticated as they are today, and the road to research was full of thorns.
In the laboratory, the wise men worked hard and tried various methods to obtain the mystery of this compound. At first, the method of preparation was cumbersome and the yield was low, but the perseverance of chemists made the exploration more and more.
With the passage of time, technology has become more and more advanced, and the chemical method has become more and more exquisite. The technique of preparing M-Aminobenzenesulfonic Acid has increased from crude to excellent, and the yield has also increased greatly. It is gradually being used in various fields such as industry and scientific research, laying a solid foundation for the development of chemistry in later generations.

Product Overview

"Overview of M-Aminobenzenesulfonic Acid Products"
M-Aminobenzenesulfonic Acid is also an important product of chemistry. Its shape is often white to light gray crystalline powder, with unique chemical properties. In the industrial field, it has a wide range of uses. It can be used as a dye intermediate to add color to the brilliant color of dyes. After delicate chemical reactions, the colorant is used for fabric printing and dyeing to make fabrics colorful.
also contributes to the synthesis of medicine. It participates in the preparation of key pharmaceutical ingredients. After rigorous technology, it lays the foundation for pharmaceutical quality. Its preparation process has been studied for generations and has become increasingly refined. However, in the preparation, the reaction conditions, such as temperature, pH, etc., need to be controlled to ensure the purity and quality of the product. M-Aminobenzenesulfonic acid is indispensable for the development of the chemical industry and contributes to the progress in many fields.

Physical & Chemical Properties

M-Aminobenzenesulfonic Acid, that is, m-aminobenzenesulfonic acid, its physical and chemical properties are as follows:
Viewed, this substance is white to gray-white crystalline powder at room temperature, like fine sand, uniform texture. Smell it, almost odorless.
On its solubility, it can be slightly soluble in cold water, and its solubility is slightly increased in hot water. This property is related to the temperature change of water. It is difficult to dissolve in organic solvents, such as ethanol and ether.
In terms of stability, it is relatively stable in conventional environments, but when it encounters strong oxidants, it is prone to chemical reactions, and its structure may change. When heated, the temperature reaches a certain extent, and it will decompose to produce harmful gases.
m-aminobenzene sulfonic acid is acidic, and because of the sulfonic acid group in its molecular structure, it can neutralize and react with alkali substances to generate corresponding salts.

Technical Specifications & Labeling

M - Aminobenzenesulfonic Acid, it is also a matter of transformation. Its technical quality is very important (commodity quality).
According to the technical maxim, when its degree is high, its content must be slightly small. The crystal form and particle size also need to be uniform to meet the needs of the work.
As far as the package is concerned, the name of this thing must be clearly stated, that is, M - Aminobenzenesulfonic Acid, and it is attached with a chemical formula to clearly show its creation. Ming Sheng

Preparation Method

M-aminobenzenesulfonic acid, the method of preparation is related to the raw material and production process, reaction steps, and catalytic mechanism. The raw material is often based on benzenesulfonic acid. After nitrification, m-nitrobenzenesulfonic acid is obtained. In this step, the temperature of the reaction and the amount of agent need to be controlled to maintain the yield.
Then, by reduction, m-nitrobenzenesulfonic acid is reduced to M-aminobenzenesulfonic acid. Commonly used reducing agents include iron filings and hydrochloric acid, or catalytic hydrogenation. If the method of iron filings hydrochloric acid, the reaction is mild, but the product separation is slightly more complex; catalytic hydrogenation is efficient and pure, but specific catalysts and conditions are required.
During the reaction steps, precise temperature control, time and agent ratio are essential. And in the catalytic mechanism, the choice and dosage of catalysts depend on the speed and rate of the reaction. For example, when catalyzing hydrogenation, catalysts such as palladium carbon have high activity, can reduce the energy barrier of the reaction, and promote the reaction between hydrogen and nitro, so as to improve the production process and achieve the purpose of optimal yield.

Chemical Reactions & Modifications

Today's research on the reversal of M-Aminobenzenesulfonic Acid, this is the most important thing in chemical research. In its reaction, all kinds of things have an impact, such as the degree of reversal and catalysis. High degree of reversal or speed, however, there are also its limitations, or it may cause side reactions. Catalysis can change the reaction rate, and the appropriate catalytic rate can make the reaction efficient and directional.
As for the chemicity, M-Aminobenzenesulfonic Acid is acidic and can be reversed into a reaction. And because it contains an amino sulfonic acid group, it can have many reactions, such as coupling and reversal. Studying its chemical properties can help us make good use of it, make useful things, or change its synthesis method, improve its efficiency and degree, and develop it in chemical engineering.

Synonyms & Product Names

M - Aminobenzenesulfonic Acid, or m-aminobenzenesulfonic acid, is very important in the chemical industry. There are many synonyms, such as m-sulfonic acid aniline, etc. Different industries or regions have different names due to differences in habits. Trade names are also rich and diverse, and they are indicated by unique trade names in various chemical product directories.
Investigating its roots, these synonyms are closely related to the formation of trade names and the development of the industry. In the early stage of chemical exploration, different researchers named them according to their own cognition and habits, and then they became a variety of synonyms. With commercial promotion, merchants gave their products unique trade names in order to highlight their characteristics or build brands.
For our chemical product researchers, it is crucial to clarify their synonyms and trade names. In this way, it is possible to accurately locate complex chemical data, ensure the coherence and accuracy of research, and promote continuous progress in the chemical industry.

Safety & Operational Standards

Specifications for safety and operation of M-aminobenzenesulfonic acid products
M-aminobenzenesulfonic acid is also a commonly used product in chemical research. It is related to safety and operation standards and cannot be ignored.
For storage, it should be placed in a cool, dry and well-ventilated place. Keep away from fire and heat sources to prevent accidents. If this product is exposed to high temperature or fire sources, it is dangerous, so caution should be taken. The packaging must be sealed to prevent moisture absorption or reaction with impurities in the air, which will damage its quality.
When operating, it is necessary to strictly follow the procedures. Operators should wear appropriate protective clothing, protective gloves and goggles to protect against potential harm. Avoid direct contact with the skin. If it is accidentally contaminated, rinse it with plenty of water quickly and seek medical treatment if necessary. Do not inhale its dust. The operating environment should be well ventilated or equipped with suitable respiratory protective equipment.
If handling is involved, it should be handled lightly to prevent package damage. Once the package is damaged and the material leaks, emergency measures should be taken immediately. Small leaks can be collected with clean equipment and placed in a suitable container to be disposed of. If there are large leaks, embankments or pits should be built for containment, and professional methods should be used for recycling or harmless disposal.
Furthermore, disposal should not be ignored. Relevant regulations should be followed and cannot be discarded at will. It must be handed over to a qualified processing agency and properly handled according to specific procedures to protect the environment and public safety.
In short, safety and operating standards are the top priority in the use of M-aminobenzenesulfonic acid. From storage, operation to disposal, it should be strictly treated to ensure the smooth operation of the experiment and the safety of personnel and the environment.

Application Area

M-Aminobenzenesulfonic Acid, or m-aminobenzenesulfonic acid, has a wide range of application fields. In the dye industry, it can be used as an important intermediate to synthesize a variety of colorful dyes. The resulting dyes have bright colors and good fastness. They are widely used in fabric dyeing to make fabrics colorful. In the field of medicine, it also plays an important role as an indispensable raw material for the synthesis of certain drugs, and is of great significance to disease treatment and drug research and development. In chemical production, it can be used to prepare various additives, such as surfactants, to improve the performance of chemical products. It can also be used to prepare photosensitive materials and play a key role in photography and other fields to help images appear clearly. Therefore, M-Aminobenzenesulfonic Acid plays a key role in many industries and promotes the development of various fields.

Research & Development

I have been dedicated to the research of M-Aminobenzenesulfonic Acid for a long time. At the beginning, I was trapped in the difficulty of finding raw materials and the complexity of the process. Every time I try it, I often fail to find the method, and the product obtained is impure and difficult to meet expectations.
However, I have not given up, I have searched ancient books and visited various houses. Seek new changes in ancient methods, and take advantage of foreign methods. After months of research, improve the process and optimize the process.
Today, the quality of the product is gradually improving, and the yield has also improved. However, there are still areas for improvement, the removal of impurities, and the reduction of energy consumption are all urgent matters. I should continue to be diligent and explore the details, hoping to make the research and progress of this product reach a new level and contribute to the prosperity of the industry.

Toxicity Research

Study on the toxicity of M-aminobenzenesulfonic acid
The observation of tasting and physical properties is related to the safety of people's livelihood. The toxicity of M-aminobenzenesulfonic acid is now clear.
M-aminobenzenesulfonic acid has a white crystalline appearance. Its effect in the body cannot be ignored. Oral intake may affect the function of the viscera. In animal experiments, excessive consumption may cause gastrointestinal discomfort, and even damage the liver and kidneys. And it is also at risk of irritation to the skin and mucous membranes. Touch it, or feel burning, redness and swelling.
The source of its toxicity, or the characteristics of groups in the molecular structure. The synergy of amino and sulfonic acid groups can interact with biological macromolecules and disrupt their biochemical order. Although it is widely used in industry, the danger of toxicity cannot be ignored. It is urgent to study its detoxification and protection strategies, so that the survivors are protected from its harm and the workers are content with their duties.

Future Prospects

I have tried to study M - Aminobenzenesulfonic Acid, and feel that its future development is quite impressive. Its unique nature is available in many fields.
In the field of medicine, it may help the research and development of new agents, adding a sharp tool for curing diseases and treating diseases. In the chemical industry, it can be used as raw materials to produce a variety of products and promote the prosperity of the industry.
Although the research is not complete at present, the prospects are shining. With time, we will be able to explore it in depth and understand its more wonderful uses. At that time, it may be widely used in the world to benefit people and goods, so that our lives will be changed and improved. This is my vision for the future development of M - Aminobenzenesulfonic Acid.

Frequently Asked Questions

What are the main uses of M-Aminobenzenesulfonic Acid?

M-aminobenzenesulfonic acid has a wide range of uses and is used in many fields such as industry and medicine.
In the dye industry, it is a key intermediate. A variety of dyes can be prepared, such as azo dyes. Based on it, through complex chemical reactions, it can generate colorful dyes with different properties. It is used in fabric printing and dyeing and other industries to make fabrics rich in color and have a certain color fastness.
In the field of medicine, it also has important uses. It is often a raw material for the synthesis of specific drugs. Due to its structural properties, it can participate in the construction of drug molecules, endow drugs with specific pharmacological activities, and help in the treatment of diseases.
In other industries, m-aminobenzenesulfonic acid also has manifestations. In the preparation of some fine chemical products, it is an indispensable component. It can be used to prepare auxiliaries, additives, etc., to improve product performance and quality.
From this perspective, m-aminobenzenesulfonic acid plays an important role in the development of modern industry and medicine. It has a wide range of uses and is diverse, and has made great contributions to promoting the progress of related industries.

What are the physical properties of M-Aminobenzenesulfonic Acid?

The m-aminobenzenesulfonic acid is one of the organic compounds. It has various physical properties, which are described in detail by you.
In terms of its appearance, it is a white to gray-white crystalline powder under normal conditions, which is like fine sand and has a fine texture. This substance is quite stable at room temperature. However, when exposed to high temperature, open flame or strong oxidizing agent, it is easy to chemically react, so it needs to be properly stored.
As for solubility, m-aminobenzenesulfonic acid is soluble in water, but its solubility varies with temperature. When the water temperature increases, its solubility also increases. This property makes it very interesting in the reaction or separation process of some aqueous solution systems. In organic solvents, its solubility is relatively limited, and it is mostly insoluble in common non-polar organic solvents, such as petroleum ether, benzene, etc. However, in some polar organic solvents, such as ethanol and acetone, it can be dissolved to a certain extent, but the solubility is not high.
The melting point of m-aminobenzenesulfonic acid is also an important physical property. Its melting point is about 288 ° C. At this temperature, the substance changes from solid to liquid. The determination of the melting point is of great significance in identifying its purity and studying its thermal stability. Those with high purity have a more acute melting point and a narrow range; if they contain impurities, the melting point decreases and the melting range becomes wider.
In addition, m-aminobenzenesulfonic acid has certain hygroscopicity. In a humid environment, it can absorb moisture in the air and cause its own deliquescence. When it is stored, it should be placed in a dry place to prevent it from affecting the quality and performance due to moisture absorption.
From the above, the physical properties of m-aminobenzene sulfonic acid play an important role in its production, storage, application and other links, and practitioners cannot ignore it.

M-Aminobenzenesulfonic the chemical properties of Acid

M-aminobenzenesulfonic acid is one of the organic compounds. It has the characteristics of acid, because it contains sulfonic acid groups (-SO-H), it can dissociate hydrogen ions in water, and is acidic. It can neutralize and react with alkali substances to form corresponding salts.
Its physical properties are mostly white to off-white crystalline powder under normal conditions. It has a certain solubility in water, and the solubility is affected by temperature. When the temperature increases, the solubility may increase.
In terms of chemical activity, both amino (-NH ²) and sulfonic acid groups can participate in many chemical reactions. Amino groups are nucleophilic and can undergo nucleophilic substitution reactions with halogenated hydrocarbons, acid anhydrides, etc. For example, when it meets the acyl halide, the nitrogen atom of the amino group will attack the carbonyl carbon of the acyl halide to form an amide compound. The sulfonic acid group can undergo substitution, condensation and other reactions, and can react with alcohols under appropriate conditions to form sulfonates.
And because its molecular structure contains a benzene ring, it is aromatic and can participate in the electrophilic substitution reaction unique to the benzene ring. Like under the action of an appropriate catalyst, it can undergo halogenation and nitrification reactions with halogenating agents, nitrifiers, etc., and introduce corresponding substituents on the benzene ring. M-aminobenzenesulfonic acid is used in many fields. It is often an important intermediate in the synthesis of dyes in the dye industry. Through its participation in a series of reactions, a variety of brightly colored dyes can be prepared. In the field of medicine, some of its derivatives may have specific pharmacological activities or be key raw materials for drug synthesis.

What is the production method of M-Aminobenzenesulfonic Acid?

M-aminobenzenesulfonic acid, commonly known as m-aminobenzenesulfonic acid, is prepared by chemical synthesis in the past.
The method often uses m-nitrobenzenesulfonic acid as the starting material. First take m-nitrobenzenesulfonic acid, place it in a suitable reactor, add an appropriate amount of water to dissolve it into a uniform solution. This step requires temperature control to stabilize the temperature within a certain range, usually in a mild temperature range, to ensure the dissolution effect.
Then, add an appropriate amount of reducing agent, such as a combination of iron powder and hydrochloric acid. Iron powder reacts with hydrochloric acid to generate new hydrogen, which has strong reducing properties and can gradually reduce the nitro group in m-nitrobenzenesulfonic acid to amino groups. During the reaction, it is necessary to continuously stir to allow the reactants to fully contact and accelerate the reaction process. And the temperature also needs to be strictly controlled, generally controlled within a certain temperature range to ensure that the reaction proceeds in the expected direction, while avoiding the generation of side reactions.
After the reaction is completed, the product often contains impurities. At this time, it needs to be separated and purified. First, solid impurities such as unreacted iron powder are removed by filtration. The filtrate is used with suitable chemical reagents, such as some salt solutions, to adjust its pH, so that M-aminobenzenesulfonic acid can be precipitated in a precipitated state. After centrifugation, washing, removing impurities on the surface of the precipitation, and finally drying at low temperature, pure M-aminobenzenesulfonic acid can be obtained.
There are other methods, such as using m-aminobenzenesulfonamide as raw material and preparing it by hydrolysis reaction. The m-aminobenzenesulfonamide is put into a reaction system containing an appropriate amount of acid or base, and under a specific temperature and pressure, the amide bond is hydrolyzed to convert to M-aminobenzenesulfonic acid. This process also requires fine regulation of the reaction conditions to achieve higher yield and purity.

M-Aminobenzenesulfonic Acid in storage and transportation

M-aminobenzenesulfonic acid is an important chemical raw material. The following things should be paid special attention to during storage and transportation:
First, the storage place must be dry and well ventilated. This substance is prone to moisture. If the environment is humid, it may cause it to deteriorate, affecting the quality and use efficiency. For example, if placed in a dark and humid corner, it is easy to absorb moisture and agglomerate, making subsequent access and processing difficult.
Second, temperature control is also crucial. High temperature hot topics should be avoided to prevent decomposition or other chemical reactions caused by excessive temperature. High temperature environment or cause its chemical structure to change, causing it to lose its original characteristics and functions.
Third, when storing, it needs to be isolated from oxidants, acids, alkalis, etc. Because of its active chemical properties, contact with these substances, or violent reaction, causing safety accidents, such as combustion, explosion, etc., must not be prevented.
Fourth, during transportation, the packaging must be tight and firm. Ensure that there is no risk of leakage during bumps and vibrations. Leakage will not only pollute the environment, but also may cause harm to transportation personnel and surrounding people.
Fifth, the means of transportation should also be clean and pollution-free. Other residual chemicals may react with M-aminobenzenesulfonic acid, affecting product quality.
Sixth, whether it is storage or transportation, it is necessary to strictly follow relevant regulations and operating procedures. Operators should be professionally trained and familiar with the characteristics of the substance and emergency treatment methods. In case of emergencies, they can quickly and properly handle it to ensure personnel safety and environmental safety.