2-Amino Toluene-4-Sulphonic Acid

Lingxian Chemical

Specifications

HS Code	211656
Chemical Formula	C7H9NO3S
Molar Mass	187.216 g/mol
Appearance	White to light - yellow crystalline powder
Solubility In Water	Soluble in hot water
Solubility In Organic Solvents	Sparingly soluble in common organic solvents
Melting Point	288 - 290 °C
Ph Of Aqueous Solution	Acidic
Stability	Stable under normal conditions
Hazard Class	Irritant
Odor	Odorless

Packing & Storage

Packing	50 - kg bags for packaging 2 - Amino Toluene - 4 - Sulphonic Acid.
Storage	2 - Amino Toluene - 4 - Sulphonic Acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, open flames, and strong oxidizing agents. Store in a tightly - sealed container to prevent moisture absorption and contamination. Separate from incompatible substances. Ensure the storage area has appropriate spill - containment measures.
Shipping	2 - Amino Toluene - 4 - Sulphonic Acid is shipped in sealed, corrosion - resistant containers. Strict adherence to hazardous chemicals shipping regulations ensures safe transportation, minimizing risks during transit.

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General Information

Historical Development

The origin of 2-aminotoluene-4-sulfonic acid can be traced back to the past. At the beginning, the sages of chemistry set foot in the field of this compound on the way to explore the mysteries of matter. At that time, the research methods were still simple, but the enthusiasm did not decrease.
With the passage of time, science and technology have gradually developed, and the study of this object has deepened. Scholars analyze its nature and structure with determination and keen wisdom. From simple workshops to sophisticated laboratories, step by step to explore its characteristics.
Many ancestors worked in the classics, or in front of the test bench, adding to the understanding of 2-aminotoluene-4-sulfonic acid. From the initial exploration of ignorance to the clarification of its chemical wonders, this is the process of countless efforts, and it is also a wonderful stroke in the long volume of chemical evolution.

Product Overview

2-Aminotoluene-4-sulfonic acid is also a chemical substance. Its color is white or nearly white, and it is crystalline and has a certain degree of melting. This product can be prepared from a specific chemical reaction, and it is useful in the field of synthesis.

The method of taking the raw material of the original material and the exquisite chemical transformation is obtained, so this 2-aminotoluene-4-sulfonic acid is obtained. In the manufacture of dyes, it can be an important raw material to help form dyes of various colors. It also plays an indispensable role in the synthesis of some compounds, affecting the properties of the substance.
Its properties are determined whether or not, depending on the surrounding environment. Under proper preservation, it can be damaged for a long time. However, in case of special circumstances such as acid, acid or high temperature, it may be biochemically damaged and lose its original characteristics. Therefore, 2-aminotoluene-4-sulfonic acid has its status in the chemical domain.

Physical & Chemical Properties

2-Aminotoluene-4-sulfonic acid has unique properties. Its color may be light white and crystalline, and it is quite stable under normal temperatures. Its melting point is moderate, and it changes orderly when heated. This physical property is related to its performance in many reactions.
In terms of chemical properties, it has amphoteric characteristics due to the presence of amino groups and sulfonic acid groups. Amino groups can combine with acids, and sulfonic acid groups can react with bases. In the field of organic synthesis, it is often used as a key raw material and participates in the construction of complex molecular structures. With its chemical activity, it can be derived through many reaction paths and various products, opening up a broad path for chemical research and industrial production. The investigation of its physical and chemical properties is the key to understanding and making good use of this object.

Technical Specifications & Labeling

For 2-aminotoluene-4-sulfonic acid, it is also a chemical product. Its technical quality is not accurate (commodity quality) to the essential.
In terms of technical quality, it is necessary to clarify its degree, and seek high quality, in order to ensure that its properties are determined, not other, so as to meet the needs of general purposes. Melting and boiling also need to be determined precisely. According to the method of Ike, there can be no difference. This is one of the requirements for determining the quality of its products.
Above, the name must be correct, and the name of 2-aminotoluene-4-sulfonic acid is clear. Commodities such as composition ratio, physical properties, etc., are listed to make users clear. In this way, this product can be used in chemical industries, etc., and it can be used in a suitable manner.

Preparation Method

The preparation method of 2-aminotoluene-4-sulfonic acid is related to the raw material and production process, reaction steps and catalytic mechanism. The raw material is often toluene-based, through sulfonation and nitration reactions. First, toluene and sulfuric acid are heated together, and the sulfonation technique is performed to obtain p-toluenesulfonic acid. This step requires temperature control and reaction time to ensure the precise positioning of the sulfonic acid group.
Then, p-toluenesulfonic acid is mixed with nitric acid and sulfuric acid, and the nitration reaction is carried out, resulting in the introduction of nitro groups into ortho positions to obtain 2-nitro-4-methylbenzenesulfonic acid. Subsequently, iron powder, hydrochloric acid or sulfide base were used as reducing agents to transfer nitro to amino group to obtain 2-aminotoluene-4-sulfonic acid.
In the catalytic mechanism, sulfuric acid was used as a catalyst for sulfonation to reduce the reaction energy barrier and promote the reaction speed. The mixed acid of nitrification, sulfuric acid is also catalytic, and nitric acid is electrophilic. In the reduction step, different reducing agents have their own activities, which affect the reaction process and product purity. It needs to be adjusted according to the actual situation to achieve the best effect.

Chemical Reactions & Modifications

2 - Amino Toluene - 4 - Sulphonic Acid is also used to transform the material. Its transformation and reverse modification, the most important. To understand its reflection, it is necessary to observe the general components. Such as the rise and fall of the degree, the rate of reflection can be reduced. Under high temperature, the reaction or speed may also cause side reactions to occur.
It also dissolves, and it also affects the depth. Appropriate dissolution can help to reverse the process and increase the quality of the material. If the dissolution does not work, it can be reversed and used, or more materials can be obtained.
As for modification, it can be modified. If a specific foundation is introduced, it can be used for different purposes. Or to increase its solubility, or to change its quality, are all ingenious and precise operations. Chemists should study it carefully, so as to achieve a good environment, so that this thing can be used for its own purposes, and it is also effective in the field of work and scientific research.

Synonyms & Product Names

2-Aminotoluene-4-sulfonic acid, which is very important in the field of chemical industry. Its synonyms and trade names have always been valued by the academic and industry.
Looking back at the past, many books contain its related titles. Or the name is p-aminotoluenesulfonic acid, which is named because of the position of the amino group and the sulfonic acid group in its structure and the relationship between p-toluene. It is also called 4-sulfo-2-aminotoluene, which is named from another perspective according to the order of the groups.
In the middle of business, there is also another name. With its characteristics, it is given the name of a unique product, and it is expected to emerge in the market. However, no matter how the name changes, they all refer to the same chemical substance. When scholars study, they must clarify their synonyms and trade names, so as to be accurate and not confused, so that the research road is smooth and smooth, and they contribute little to the chemical industry.

Safety & Operational Standards

Safety and Handling Specifications for 2-Aminotoluene-4-Sulfonic Acid
Fu 2-Aminotoluene-4-Sulfonic Acid is a common substance in chemical research. To understand its safety and handling specifications, it is necessary to check all the details.
First words storage, must choose a cool, dry and well ventilated place. This product is afraid of moisture and heat. If it is in a humid and hot place, or causes quality variation, it may even pose a safety risk. And it should be placed separately from oxidizing agents, acids and other substances to prevent interaction and cause accidents.
As for the operation, the operator should wear strict protective equipment. It is necessary to wear protective glasses to protect your eyes from splashing; wear protective clothing to avoid contact with the skin; wear a mask to prevent dust from entering the lungs. The operation room must also be well ventilated to make the air smooth and avoid the accumulation of harmful gases.
When using, the action should be slow and careful. Dissolving or mixing this substance should be done in a specific order and rate, and do not be impatient. If there is a spill, clean it up immediately. Small spills can be collected with clean equipment and placed in designated containers; large spills need to be contained and properly disposed of.
Disposal should not be ignored. It must comply with relevant laws and regulations and cannot be discarded at will. It should be handed over to a professional organization and handled according to standardized procedures to ensure environmental safety.
In short, in the research and application of 2-aminotoluene-4-sulfonic acid, strict adherence to safety and operating standards is necessary to ensure the safety of personnel, protect the safety of the environment, and promote the smooth research.

Application Area

2-Aminotoluene-4-sulfonic acid, this compound has a wide range of uses. In the field of printing and dyeing, it can be used as a dye intermediate. Because its structure contains amino and sulfonic acid groups, it can react with a variety of compounds to produce dyes with brilliant color and good fastness, and dye fabrics with bright and long-lasting colors.
In the pharmaceutical and chemical industry, it also has important uses. It can be prepared through a specific reaction path with pharmacological activity, providing key raw materials for pharmaceutical research and development.
In the preparation of surfactants, 2-aminotoluene-4-sulfonic acid can participate in the synthesis, giving surfactants unique properties, such as good emulsification, dispersion and solubilization effects, and is widely used in daily chemical and other industries. Overall, it has important applications in many fields, promoting the development of related industries.

Research & Development

Yu Taste is dedicated to the research and development of 2-aminotoluene-4-sulfonic acid. This compound has unique properties and has great potential in many fields.
At the beginning, it explored its synthesis path, and after many attempts, it was finally feasible. However, the process is difficult and often encounters obstacles. The ratio of raw materials and the reaction conditions need to be carefully controlled.
Then study its properties, observe its changes in different environments, and understand the laws of its stability and activity.
After long-term research, this achievement has gradually become valuable. In industrial production, the process can be optimized; in the academic field, it is also a new way. I hope that in the future, its application can be further expanded, enabling it to shine in more aspects and promote the development of related fields.

Toxicity Research

Taste the chemical industry, there are many categories, and poisons are hidden in it. Today there are 2 - Amino Toluene - 4 - Sulphonic Acid. The investigation of its toxicity cannot be ignored.
Watching this product, or involving skin diseases, touch the skin discomfort, itching and red rash, which occurs from time to time. If you are not careful to enter the eyes, your eyes will sting, and even your eyesight will be damaged. If its qi is inhaled, the lungs will also suffer from it, coughing and wheezing, and breathing will be difficult.
Although it is useful in industry, the risk of toxicity is as high as your back. For the industry, it is essential to strictly protect it, explore the depth of its toxicity, and understand the breadth and narrowness of its harm, so as to ensure the safety of the survivors and not let the poison invade the body without knowing it. In the study of toxicity, we should be unremitting and keep improving, so that everyone can understand its harm and avoid disasters before they are conceived. This is the responsibility of my chemical researchers.

Future Prospects

Today there is a thing called 2 - Amino Toluene - 4 - Sulphonic Acid. Looking at this thing, I have an endless prospect. In the field of chemical industry, it may shine brightly. In the future, it may be able to contribute to improving the quality of products in fine chemical products, making the paint color brighter and the dye fastness better.
In the road of pharmaceutical research and development, there are also infinite possibilities. Or through subtle transformation, it can become a good medicine for curing diseases and saving people, and relieve the pain of patients. Above agriculture, or it can be turned into an aid to help crop growth, blessing the five grains.
Although the current situation is not perfect, I firmly believe that with time and unremitting research, we will be able to unearth its hidden power, seek the well-being of the world, and develop the brilliant future.

Frequently Asked Questions

What are the main uses of 2-Amino Toluene-4-Sulphonic Acid?

2-Aminotoluene-4-sulfonic acid has a wide range of uses. In the dye industry, this is a very critical raw material. With its unique chemical structure, it can participate in many dye synthesis reactions, and then obtain colorful dyes with excellent color fastness. For example, when synthesizing azo dyes, 2-aminotoluene-4-sulfonic acid can be used as a diazo component or coupling component. Through precise chemical reactions, dyes are endowed with unique color and properties, and are widely used in textiles, printing and dyeing and other industries to make fabrics show a colorful appearance.
In the field of medicine, 2-aminotoluene-4-sulfonic acid also has its uses. It can be used as some pharmaceutical intermediates and converted into pharmaceutical ingredients with specific pharmacological activities through a series of chemical reactions. Due to its own active groups, it can participate in the construction of drug molecules, providing a key basis for the development of drugs for the treatment of specific diseases and contributing to the progress of pharmaceutical science.
In the field of organic synthesis, 2-aminotoluene-4-sulfonic acid is often used as an important organic synthesis reagent. It can be used to construct complex organic molecular structures, using its reactivity of amino groups and sulfonic acid groups to react with other organic compounds, such as substitution and condensation, to expand the variety and structure of organic compounds, and to contribute to the development of organic synthetic chemistry. It also plays an indispensable role in materials science and other related fields.

Physicochemical Properties of 2-Amino Toluene-4-Sulphonic Acid

2-Amino-toluene-4-sulfonic acid, also known as p-aminotoluene-o-sulfonic acid, is an organic compound. Its physicochemical properties are as follows:
- ** Properties **: It is often white to off-white powder, with a delicate and uniform appearance. This form is easy to operate and use in many chemical reactions and industrial production processes.
- ** Solubility **: It has a certain water solubility and can be partially dissolved in water. This property is crucial in many reactions or separation processes using water as a medium. With its solubility in water, it can be mixed, reacted or separated from other substances.
- ** Melting point **: The melting point is within a specific range, and the exact melting point data may vary slightly due to different experimental conditions and purity. As a key physical property of a substance, the melting point characterizes its behavior during heating, melting, etc., which is of great significance for setting the processing temperature in industrial production.
- ** Stability **: Under conventional conditions, 2-amino-toluene-4-sulfonic acid has certain chemical stability, but if it encounters specific chemicals such as strong oxidizing agents, strong acids, and strong bases, or is exposed to extreme environments such as high temperature and high pressure, chemical reactions may occur, causing its chemical structure to change. For example, under the action of strong oxidizing agents, some groups in the molecule may be oxidized, which in turn affects the chemical properties and performance of the substance.
- ** Acidic **: Due to the sulfonic acid group contained in the molecular structure, 2-amino-toluene-4-sulfonic acid exhibits a certain degree of acidity. In solution, the sulfonic acid group can ionize hydrogen ions, exhibit acidic properties, and can neutralize with bases to generate corresponding salts. This acidic property has important applications in many chemical reactions and acid-base equilibrium systems.

What is the production method of 2-Amino Toluene-4-Sulphonic Acid?

2-Aminotoluene-4-sulfonic acid, also known as p-aminotoluene-o-sulfonic acid, is prepared by sulfonation and then nitrification, and then reduction.
Initially, p-toluidine is used as the base material to make it co-heat with sulfuric acid and undergo a sulfonation reaction. Capsulfuric acid has the ability to sulfonate, and can introduce the sulfonic acid group into the molecular structure of p-toluidine. In this process, p-toluidine interacts with sulfuric acid at a suitable temperature and duration, so that the sulfonic acid group is precisely connected to the ortho-position of the para-amino group of the toluene ring, and then p-toluidine o-sulfonic acid is obtained.
Then, the obtained p-toluidine o-sulfonic acid meets nitrifying reagents such as nitric acid and Nitric acid introduces nitro groups into molecules under specific conditions to construct intermediates containing nitro groups. In this step of the reaction, the control of conditions is the key, and the temperature and the proportion of reactants have a great influence on the direction of the reaction and the purity of the product.
Finally, the nitro group in the nitrification product is converted into an amino group by the method of reduction. Iron powder, sodium sulfide, etc. are often used as reducing agents to promote the gradual reduction of nitro groups to amino groups in a suitable medium, and finally 2-aminotoluene-4-sulfonic acid is obtained.
However, this traditional method may have many drawbacks such as complicated steps and more waste generation. Later researchers have also explored more green and efficient methods, hoping to optimize the preparation process of this compound, reduce its environmental disturbance, and increase its production benefits.

What is the market outlook for 2-Amino Toluene-4-Sulphonic Acid?

2-Aminotoluene-4-sulfonic acid, its market prospects are quite promising. This compound is widely used in dyes, medicine, pesticides and other industries.
Guanfu dye industry, today's consumers' pursuit of color is becoming more diverse and distinct, and there is a growing demand for high-quality, high-color fastness dyes in textiles, printing and dyeing and other fields. 2-Aminotoluene-4-sulfonic acid, as a key dye intermediate, can be derived from a number of brilliant and excellent performance dyes, and its market share in this industry is expected to expand steadily with the growth of demand.
As for the pharmaceutical industry, with the aging of the global population, the demand for various types of drugs continues to rise. This compound can be used to synthesize some drugs with special curative effects, and its value in the field of pharmaceutical research and development is gradually becoming prominent. In the future, more innovative drugs based on this may come out, which will then stimulate market demand.
The pesticide industry cannot be ignored. At present, agricultural production has a strong demand for high-efficiency, low-toxicity and environmentally friendly pesticides. 2-aminotoluene-4-sulfonic acid can play an important role in the creation of new pesticides, which can help to develop pesticide products that better meet the needs of modern agriculture. Therefore, there is also broad development space in the pesticide market.
Although its market prospects are good, it also faces some challenges. The fluctuation of raw material prices may have an impact on its production costs, which in turn affects market prices and profit margins. Furthermore, with stricter environmental supervision, the production process needs to meet more stringent environmental standards, which puts forward higher requirements for the technical and management level of the production enterprise.
Overall, 2-aminotoluene-4-sulfonic acid has a bright market prospect due to its wide application field. However, practitioners need to properly cope with challenges such as cost and environmental protection in order to stand out in the market competition and enjoy the dividends of industry development.

What are the precautions for using 2-Amino Toluene-4-Sulphonic Acid?

For 2-aminotoluene-4-sulfonic acid, many matters need to be paid attention to when using it.
First, this material has a certain chemical activity. When storing, it must be in a dry, cool and well-ventilated place. If it is in a humid and warm environment, it may cause its properties to mutate and affect the use effect.
Second, during operation, protective measures are essential. Appropriate protective clothing, protective gloves and goggles are appropriate. Because it may be irritating to the skin and eyes, if it is inadvertently touched, it should be rinsed with plenty of water immediately and treated according to the actual situation.
Third, in the preparation or reaction process, accurate control of the dosage and reaction conditions is the key. Its reactivity is greatly affected by factors such as temperature and pH. If the temperature is too high, the reaction may be out of control; if the pH is improper, it will be difficult to achieve the expected reaction effect.
Fourth, after use, the remaining materials and waste must not be discarded at will. It needs to be properly disposed of in accordance with relevant regulations to avoid polluting the environment and endangering the ecology.
Fifth, the place of use should maintain air circulation to prevent its volatile gas from accumulating in a limited space and causing latent risk.
In short, when using 2-aminotoluene-4-sulfonic acid, it is necessary to exercise caution and strictly follow the operating specifications to ensure safety and effectiveness.