2-Methylaniline-4-Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	991794
Chemical Formula	C7H9NO3S
Molar Mass	187.216 g/mol
Appearance	White to off - white solid
Solubility In Water	Soluble in hot water
Melting Point	180 - 185 °C
Boiling Point	Decomposes before boiling
Stability	Stable under normal conditions, but may decompose on heating or in contact with strong oxidizing agents

Packing & Storage

Packing	25 - kg bags for 2 - Methylaniline - 4 - Sulfonic Acid packaging.
Storage	2 - Methylaniline - 4 - Sulfonic 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 - sealed container to prevent moisture absorption and contamination. Avoid storing near incompatible substances to prevent potential chemical reactions.
Shipping	2 - Methylaniline - 4 - Sulfonic Acid is shipped in well - sealed, corrosion - resistant containers. They are carefully packaged to prevent leakage during transit, following strict chemical shipping regulations to ensure safety.

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General Information

Historical Development

2-Methylaniline-4-sulfonic acid is also a product of chemistry. Although its origin is difficult to trace back to the very beginning, it can be seen in the past, and its shadow can be seen in the evolution of chemical industry.
At the beginning, the chemical technology was not refined, and the research and development of this product was difficult to prepare. All kinds of attempts were made to obtain preliminary gains. As the years passed, scholars worked hard to improve the process. Or due to the selection of raw materials and the control of conditions, the yield gradually increased and the quality became better.
Looking at its development, from the initial exploration of ignorance to the skilled technique, it was not achieved overnight. The hearts and blood of countless craftsmen converged on the evolution of this product. Each step of change reflects the chemical road, from simple to complex, from coarse and refined, into today's 2-methylaniline-4-sulfonic acid appearance, paving the way for future chemical applications.

Product Overview

2-Methylaniline-4-sulfonic acid, which is an important raw material in the chemical industry. Its color is white, crystalline, and soluble in water and some organic solvents.
This product plays a key role in the synthesis of dyes. It can be used as an intermediate, through a series of delicate reactions, to produce colorful dyes, which are used in the dyeing process of fabrics and many other materials.
In terms of chemical properties, it has the characteristics of aniline and sulfonic acid substances. The presence of methyl and sulfonic acid groups on the benzene ring makes its activity and reaction tendency unique. Under specific conditions, it can participate in reactions such as electrophilic substitution, and derive a variety of chemical products. Due to its wide range of uses in industrial production and scientific research, its quality control and performance research have always been an important direction of chemical research, in order to better exert its effectiveness and promote the steady progress of the chemical industry.

Physical & Chemical Properties

2 - Methylaniline - 4 - Sulfonic Acid is an important compound. Its physical and chemical properties are particularly critical. Looking at its color state, it is often white to slightly yellow crystalline powder, which is easy to store and use. When it comes to solubility, it is soluble in water, which makes it effective in many chemical reactions and industrial processes. Its melting point also has a specific range, about [specific melting point value], which is of great significance to its purification and molding process. In terms of chemical properties, it has a certain acidity. Because it contains sulfonic acid groups, it can neutralize with alkalis to generate corresponding salts. This compound is widely used in dyes, medicine and other fields. Its unique physical and chemical properties lay a solid foundation for the performance improvement of products in various fields.

Technical Specifications & Labeling

2-Methylaniline-4-Sulfonic Acid, the essential products of the chemical industry are also important. The quality of the product (commodity quality) to the requirements. The production needs to be based on the quality of the product. The quality of the raw materials, seeking correctness, and the proportion must be refined. The reverse parts, such as the degree, force, etc., all need to be controlled.
To the extent that it is difficult to understand the quality of the product. The name and the mode are clear, and the quality and quality are also described. In this way, the user can be made aware of its situation and use it. By following this principle, we can obtain the 2-Methylaniline-4-Sulfonic Acid products and their effectiveness in the field of work.

Preparation Method

The preparation method of 2-methylaniline-4-sulfonic acid is related to the raw material and production process, reaction steps and catalytic mechanism. The raw material needs to take fine aniline, and carry out methylation reaction with appropriate methylation reagents, such as iodomethane, so that the amino group ortho-position is introduced into the methyl group to obtain 2-methylaniline. Then concentrated sulfuric acid is used as a sulfonating agent, the temperature is controlled at about 100 to 120 degrees Celsius, and it is slowly added dropwise to sulfonate the specific position of the benzene ring, and then 2-methylaniline-4-sulfonic acid is obtained. The reaction steps need to be rigorous, and first ensure that the reaction system is dry and oxygen-free to prevent side reactions. The ratio of raw materials is accurate, such as the molar ratio of aniline and iodometh In the catalytic mechanism, concentrated sulfuric acid is not only a sulfonating agent, but also a catalyst to promote the reaction to produce the target product. In this way, high purity 2-methylaniline-4-sulfonic acid can be prepared.

Chemical Reactions & Modifications

The modification of 2-methylaniline-4-sulfonic acid
of 2-methylaniline-4-sulfonic acid is also an important thing in the study of chemical. The reaction of this compound is the key to investigation. The reaction of this compound often involves the reaction of molecules, such as the reaction of functionalities, or the reaction of external components.
Modification aims to reduce its properties. Or improve its quality, so that it retains its inherent characteristics in different environments; or increase its activity, so as to facilitate more chemical reactions. Modification can make 2-methylaniline-4-sulfonic acid more effective in engineering, scientific research and other fields. The way of modification is often based on the insight of chemical and reverse theory, and the improvement of the properties is done in an exquisite way, so as to explore the new environment of research and application.

Synonyms & Product Names

2-Methylaniline-4-sulfonic acid, also known as p-toluidine-4-sulfonic acid. In the way of chemical exploration, their names are different, but they refer to the same thing. The ancient theory of chemical substances, although not as detailed as today, its properties and uses are also studied by Fang family.
2-methylaniline-4-sulfonic acid, its aliases are many, all due to the inheritance and rheology of the chemical industry. Although the names are different, their essence is one. In today's chemical exploration, it is clear that it is the same thing, so that its properties and uses can be known, so as to benefit the prosperity of chemical industry. This substance is used in various fields such as chemical synthesis and dye preparation, indicating that it has the same name and is the foundation for scientific research and practicality.

Safety & Operational Standards

Specifications for safety and operation of 2-methylaniline-4-sulfonic acid
For those with 2-methylaniline-4-sulfonic acid, it is also an important substance involved in chemical preparation. To ensure safe operation, all kinds of norms must not be ignored.
When storing, it is necessary to choose a cool, dry and well-ventilated place. Keep away from fire and heat sources to prevent accidents. It should be separated from oxidizing agents, acids and alkalis, and should not be mixed. The cover is easy to react and cause danger due to its active chemical properties.
When operating, the operator should strictly follow the procedures and wear appropriate protective equipment. Protective glasses, gloves and protective clothing are all essential to prevent the damage of substances to the body. In the operation room, ventilation equipment must be kept running at all times to allow air circulation and prevent the accumulation of harmful gases.
During the handling process, also be careful. Load lightly and unload lightly to avoid damage to the package. If the package is damaged and the material leaks, take emergency measures immediately. Small leaks should be adsorbed and collected by inert materials such as sand and vermiculite; if there are large leaks, a dike or a pit should be built for containment, and a pump should be transferred to a special collector for proper disposal.
Furthermore, first aid measures are also key. If you accidentally come into contact with the skin, quickly rinse with a large amount of flowing water; eye contact, immediately lift the eyelids, rinse with flowing water or normal saline, and seek medical attention in time. If inhaled, quickly move to a fresh place in the air to keep the respiratory tract unobstructed; those who eat by mistake, drink enough warm water to induce vomiting, and also need to rush to medical treatment.
In short, in the treatment of 2-methylaniline-4-sulfonic acid, safety is the first priority, and the operation is in accordance with regulations, so as to avoid disasters and ensure everything goes smoothly.

Application Area

2-Methylaniline-4-sulfonic acid is also a good material for chemical processing. The field of its application is extensive. With the help of dyes, it can increase the color and make the dye last longer. The characteristics of dye dyeing can make the color firm and not fade, and the color is rich and diverse.
In the field of chemical synthesis, it is also important. Synthesis of many raw materials can give the chemical a specific effect and help it improve its performance.
In addition, in the production of some chemicals, 2-methylaniline-4-sulfonic acid is also indispensable. The transformation of its characteristics can be achieved in a variety of ways, and it can be promoted to provide assistance for research and development. All of this is due to its important value in the field of general application, which cannot be ignored in chemical materials.

Research & Development

In recent years, I have studied "2-Methylaniline-4-Sulfonic Acid" to observe its properties, investigate its origin, and seek its progress. At the beginning, analyze its structure, understand its molecular structure, atomic position, and understand its essence. Then explore its preparation methods, try various paths, and seek efficient and pure methods. Although it encounters thorns, it is unremitting to study.
Looking at its application, it can be used in the field of dyeing and weaving and medicine. In dyeing and weaving, it adds color and stability, and the color is bright and lasting; in medicine, it is the foundation for making good medicines, or it can cure various diseases.
Progress is quite good at present, but if you want to achieve great success, you still need to cultivate deeply. Colleagues should work together to refine the technology and expand its application, hoping to make this product shine in various industries, become a driving force for development, and open a new chapter in the future.

Toxicity Research

Fu 2 - Methylaniline - 4 - Sulfonic Acid This substance, its toxicity research is a top priority. Examine its properties carefully, and it is related to the safety of public use. Now, study its toxicity, and observe its properties in the state of matter and breath. Observe its interaction with various things, or dissolve or melt, and study its changes. In the body of life, explore its entry and feeling, and observe its response to the viscera and meridians. Hope to be able to understand its harm and know its subtle effects. Only in this way can those who use it avoid its poison and use it safely. In the industry of construction, we can also take good precautions against its risks, protect the health of everyone, and everything goes smoothly. In the future, this toxicity study will lead to detailed results, which will be a complete solution for those who use this product in later generations.

Future Prospects

In the future, I have researched "2-Methylaniline-4-Sulfonic Acid", and my heart is grand. Its characteristics are unique, and its uses are unique. It can be used in the field of development to help research special effects and save people; it can also be used in chemical engineering, improving exquisite materials, and promoting innovation in engineering. I will continue to research unremitting, break its system, reduce its cost, and increase its quantity. Hope that before the end, this product is all over the world, leading the trend of technology, so that the results of our scientific research will benefit the people, and promote the world's progress. In the unseen exhibition, it will shine brightly and achieve extraordinary achievements.

Frequently Asked Questions

What are the main uses of 2-Methylaniline-4-Sulfonic Acid?

2-Methylaniline-4-sulfonic acid, which has a wide range of uses. In the dye industry, it is often an important raw material for the preparation of various dyes. Due to its unique structure, it can undergo various chemical reactions to derive colorful and different performance dyes, which are suitable for printing, dyeing, textile and other industries to meet the needs of different colors and fastness.
In the field of medicine, it is also of key significance. It may participate in the synthesis of specific drugs, and by virtue of its chemical properties, it helps to construct the active structure of drugs and contribute to the development of effective drugs for the treatment of diseases.
In the manufacture of some fine chemical products, 2-methylaniline-4-sulfonic acid is also indispensable. Such as the preparation of special surfactants, additives, etc., with their special functional groups, endow products with unique properties, such as improved solubility and enhanced stability.
In addition, at the scientific research level, due to its special chemical structure and properties, it is often a commonly used reagent for experiments in organic synthetic chemistry and other fields, helping researchers explore new reaction paths, synthesize novel compounds, and promote the development and progress of chemistry.

What are the physical properties of 2-Methylaniline-4-Sulfonic Acid?

2-Methylaniline-4-sulfonic acid is a kind of organic compound. Its physical properties are quite characteristic, let me tell you one by one.
Looking at its appearance, it is often in the form of white to light gray crystalline powder. This form is easy to observe and use, and it is easy to control in many chemical operations.
When it comes to solubility, it has a certain solubility in water. Water is soluble, because the molecular structure contains sulfonic acid groups, this group is hydrophilic and can interact with water molecules to form a stable dispersion system. And in polar organic solvents, there is also a certain dissolution performance, such as ethanol, etc. This property is conducive to its participation in various chemical reactions in organic synthesis and related processes. As a reactant or intermediate, it can better contact with other substances and react with the medium of the solvent.
Its melting point is also an important physical property. Accurate melting point data can be used as an important indicator to identify the purity of the substance. High purity of 2-methylaniline-4-sulfonic acid, the melting point is relatively fixed. If it contains impurities, the melting point may be offset or the melting range may be widened.
Furthermore, the density of the substance also has its specific value. This physical quantity is of great significance in terms of material measurement, reaction system ratio, etc. In the chemical production process, knowing its density can accurately control the feeding amount and ensure that the reaction proceeds as expected, which plays a key role in the stability of product quality.
In addition, its stability cannot be ignored. Under conventional conditions, 2-methylaniline-4-sulfonic acid is relatively stable. In case of extreme conditions such as strong acid, strong base or high temperature, the molecular structure may change, triggering a chemical reaction and causing its original properties to change. Therefore, during storage and use, appropriate measures should be taken according to its stability characteristics to ensure its quality and performance.

What are the chemical properties of 2-Methylaniline-4-Sulfonic Acid?

2-Methylaniline-4-sulfonic acid, this is an organic compound with unique chemical properties. Its properties are acidic. Due to the sulfonic acid group, hydrogen ions can be partially ionized in water, causing the solution to be acidic, and the acidity is medium strength in organic sulfonic acids.
The compound has certain solubility and strong hydrophilicity of the sulfonic acid group, making 2-methylaniline-4-sulfonic acid soluble in water and some polar organic solvents, such as ethanol, acetone, etc. However, it has poor solubility in non-polar organic solvents, such as benzene and toluene.
The chemical stability of 2-methylaniline-4-sulfonic acid is quite good, and it can exist stably at room temperature and pressure. However, in case of strong oxidants, such as potassium permanganate, concentrated sulfuric acid and concentrated nitric acid mixed solution, oxidation reaction may occur, and the sulfonic acid group or amino group is oxidized, resulting in structural and property changes.
Its amino group has a certain alkalinity and can react with acid to form salts. For example, when interacting with hydrochloric acid, it can generate corresponding hydrochloric salts. At the same time, the compound can participate in a variety of organic reactions, such as electrophilic substitution reactions. Because amino and methyl groups are power supply groups, the electron cloud density of the benzene ring can increase, and it is more susceptible to attack by electrophilic reagents. Substitution reactions occur at specific positions of the benzene ring. 2-Methylaniline-4-sulfonic acid is widely used in the field of organic synthesis, and can be used as an intermediate for fine chemicals such as dyes, medicines, and pesticides. It can be converted into a variety of organic compounds with different functions through various chemical reactions.

What is the production method of 2-Methylaniline-4-Sulfonic Acid?

2-Methylaniline-4-sulfonic acid, the method of making in the past, is obtained by chemical reaction of specific materials in a certain order, in a temperature and pressure environment.
First take an appropriate amount of 2-methylaniline and put it in the reactor. This material needs to be pure and free of impurities to avoid disturbing the reaction process. Next, slowly add fuming sulfuric acid. When the amount of fuming sulfuric acid is accurately proportioned, it will be difficult to complete the reaction if it is less, or it will produce other side effects and the quality of the bad product. When adding, it must be slow and accompanied by strong stirring to make the material mix evenly and avoid the risk of local overheating.
The reaction temperature is the key. Initially, the temperature is controlled at a moderate low level, so that the material gradually interacts with the phase and avoids overreaction. As the reaction progresses, the temperature is fine-tuned according to the situation and rises to a certain suitable value to promote the reaction speed and prevent overheating from causing side reactions. Temperature control depends on accurate measurement and temperature regulation tools.
The pressure should not be ignored. Maintain the pressure in the kettle in a stable state and keep the reaction environment constant. Improper pressure may cause the material to evaporate, or change the direction of the reaction, which will damage the quantity and quality of the product.
After the reaction is completed, separate and purify the product by appropriate methods, such as crystallization, filtration, washing, etc. When crystallizing, choose the appropriate solvent and the speed of cooling to make the product better. Filter to remove impurities, wash and remove residues, and finally obtain pure 2-methylaniline-4-sulfonic acid. All these steps require fine operation to obtain a good product.

2-Methylaniline-4-Sulfonic Acid in storage and transportation

For 2-methylaniline-4-sulfonic acid, many matters need to be paid attention to during storage and transportation. This substance has specific chemical properties, and when storing, the first environment should be selected. Find a cool, dry and well-ventilated place to avoid high temperature and humidity. High temperature can easily cause its chemical activity to change, or cause adverse conditions such as decomposition; humid environment may cause it to be damp and deteriorate, affecting quality.
In addition, storage containers should also be carefully selected. Corrosion-resistant materials must be used, because 2-methylaniline-4-sulfonic acid is corrosive to a certain extent. If the container is not corrosion-resistant, it may leak, which will not only waste materials, but also endanger the surrounding environment and personnel safety. And the container must be tightly sealed to prevent oxidation and other reactions in contact with the air.
When transporting, the packaging must be stable. Appropriate packaging materials and methods should be used in accordance with relevant regulations and standards to ensure that it is not damaged by vibration and collision during transportation. Transportation vehicles should also be kept clean and dry, away from fire and heat sources.
At the same time, transportation and storage personnel need to be professionally trained and familiar with the characteristics of 2-methaniline-4-sulfonic acid and emergency treatment methods. In case of emergencies such as leaks, they can respond quickly and correctly to reduce hazards. In this way, the safety of 2-methaniline-4-sulfonic acid during storage and transportation is guaranteed.