P-Aminobenesulfonic Acid

Lingxian Chemical

Specifications

HS Code	547552
Chemical Formula	C6H7NO3S
Molar Mass	173.19 g/mol
Appearance	White to off - white crystalline powder
Odor	Odorless
Solubility In Water	Soluble in water
Melting Point	288 - 290 °C
Density	1.485 g/cm³
Ph Of Aqueous Solution	Slightly acidic in water
Stability	Stable under normal conditions
Sensitivity	Sensitive to strong oxidizing agents

Packing & Storage

Packing	1 kg of P - Aminobenzenesulfonic Acid packaged in a sealed plastic bag.
Storage	P - Aminobenzenesulfonic Acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, flames, and incompatible substances like strong oxidizers. Store in tightly - sealed containers to prevent moisture absorption and contamination. Avoid storage near acids or bases which could react with it, ensuring its stability and integrity.
Shipping	P - Aminobenzenesulfonic Acid is shipped in well - sealed containers. It must be protected from moisture, heat, and incompatible substances during transit to ensure safety and product integrity.

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General Information

Historical Development

"History of p-aminobenzenesulfonic acid"
p-aminobenzenesulfonic acid is also a chemical product. Its origin actually originated in the process of scientific evolution. In the past, chemists studied the properties and changes of substances, and studied more in the field of organic synthesis.
Since organic chemistry has gradually emerged, and various reaction mechanisms have gradually become clear. Fang family has tried to use benzene as a group to introduce amine groups and sulfonic acid groups. After repeated experiments and repeated attempts, the method of synthesizing p-aminobenzenesulfonic acid was finally obtained.
At the beginning, the preparation was difficult and the yield was quite low. However, chemists were reluctant to study, improve the process and optimize the conditions. Therefore, the yield gradually increased and it was widely used. It was first used in the dye industry to add color and color; later in the field of medicine, it also has efficacy and helps health. Its development process is a witness to chemical exploration and progress, and recognizes the great power of scientific progress.

Product Overview

P-Aminobenesulfonic acid (P-Aminobenesulfonic Acid) is an important chemical product. Its shape and color are often white crystals, stable in nature, soluble in water, slightly soluble in alcohol ether.
This product has a wide range of uses. In the dye industry, it is the key raw material for the production of azo dyes, with gorgeous and strong color. In the pharmaceutical industry, it is also widely used, and can be used as an intermediate for sulfonamides, which is related to the healing of diseases. In analytical chemistry, it is a commonly used reference reagent and accurately measures the content of substances.
The method of preparation starts with aniline and is obtained by sulfonation. The control of the reaction, the temperature and the amount of agent are required, and the yield and purity are determined.
p-Aminobenzenesulfonic acid, although not a rare thing, is indispensable in various fields such as chemical industry and medicine, and has made great contributions to promoting various industries.

Physical & Chemical Properties

P - Aminobenesulfonic Acid is also a chemical substance. Its properties are white and often crystalline, stable, and not easy to change at room temperature and pressure. Melt, about 288 degrees Celsius, at this time the form is from solid to liquid.
Its solubility is soluble in water, but slightly soluble in organic solvents. This property is related to its dispersion and reaction in different media. And it has acid properties, which can react with bases to form corresponding salts.
And its structure contains amino groups and sulfonic acid groups, which interact with each other, resulting in its unique chemical activity. In the field of organic synthesis, it is often a key raw material and can participate in various reactions to produce various useful products. Looking at its physical and chemical properties, it can be seen that it is important in the chemical industry, medicine and other industries, and is related to the formation of many processes and products.

Technical Specifications & Labeling

Process Specification and Identification of p-Aminobenzenesulfonic Acid (Product Parameters)
p-Aminobenzenesulfonic Acid is an important chemical product. Its process specification, the first choice of raw materials. It is necessary to choose high-purity aniline as the starting material, and the quality of sulfuric acid must also be high. The ratio of the two is accurate, and three to five is appropriate to ensure a smooth reaction. When reacting, the temperature should be controlled to one hundred and twenty degrees, and it needs to be stirred evenly, and the duration is about three hours to make the reaction sufficient.
As for the identification, the finished product is white and crystal pure, and should be marked with the full name of "p-Aminobenzenesulfonic Acid", and its molecular formula is C-H-NO-S. Indicate that the Another warning is attached, saying that it is slightly corrosive, touch it with caution, store it in a cool and dry place, moisture-proof and moisture-proof, to ensure quality.

Preparation Method

The key to the preparation of P-Aminobenesulfonic Acid is the raw material and the production process. Take aniline as the starting material, put it in a kettle with concentrated sulfuric acid, and heat it up. The initial temperature is slowly raised to more than one hundred and fifty degrees, and it is constant. This is the important step to form aniline sulfonic acid.
The reaction step needs to be carefully carried out, and the temperature and speed should be controlled. After the treatment is completed, the temperature is lowered, and the crystallization is obtained. After recrystallization with water, the purity is improved.
The method of refining is related to the quality. Use activated carbon to remove impurities, filter it, obtain a clear liquid, and then cool the crystallization to obtain high-purity P-Aminobenesulfonic Acid.
In this process, the catalytic mechanism is also heavy. Selecting the right catalyst can promote reaction and improve efficiency in time. In this way, according to this system, good products can be obtained.

Chemical Reactions & Modifications

I'm still studying the transformation of P-Aminobenesulfonic Acid. The nature of this thing is initially elusive, and its reverse appearance is also more common.
At the beginning, in the general state, its reverse state is not the same. And the way to change its appearance, its speed, dissolution, suddenly strange. It rises and reverses the speed, dissolution is very special.
And its molecules are delicate, and the functions are mutually controlled. Aminosulfonic acid groups, or phase-induced, or phase-inhibited and safe. Change its micro-level, and the properties are also different. Many times, we can learn about its nature, and the understanding is not often different, but we can change it because of it, so that it can be used in general. This is also a matter of research.

Synonyms & Product Names

The same name and trade name of p-aminobenzenesulfonic acid refer to
p-aminobenzenesulfonic acid. The chemical name of this substance is established, but in all walks of life, its same name and trade name are also different.
The chemical classics of the concept may be called "sulfamic acid". This name comes from its chemical properties and uses. P-aminobenzenesulfonic acid is an important raw material for sulfonamide drugs, so it is named "sulfamic acid", highlighting its association with medicine and chemical industry.
In the printing and dyeing industry, it is often called "aniline sulfonic acid". In printing and dyeing, p-aminobenzenesulfonic acid is a common auxiliary agent, which can help dyes fix fabrics. It is named "aniline sulfonic acid", because the raw material contains aniline
Furthermore, in the trade list, there is the name "4-aminobenzenesulfonic acid". This name is accurately named from the chemical structure, and the positional relationship between the amino group and the sulfonic acid group is clear, which is convenient for chemical practitioners to accurately identify and use.
All these same names and trade names are due to the needs and habits of various industries. Although the names are different, they all refer to p-aminobenzenesulfonic acid.

Safety & Operational Standards

Safety and Operation Specifications for P-Aminobenesulfonic Acid
P-Aminobenesulfonic Acid is also a commonly used substance in chemical research. It is related to safety and operation standards and cannot be ignored.
When storing, choose a cool, dry and well-ventilated place. This substance is prone to moisture and deterioration, so moisture protection is very important. It needs to be stored in a sealed container to avoid excessive contact with air to prevent oxidation and other reactions. If it is stored improperly, it may cause changes in its properties, which will affect the accuracy of the experiment.
As for the operation, the first protection. Wear appropriate protective clothing, goggles and gloves to prevent it from touching the skin and eyes to avoid burns or other injuries. It is best to operate in a fume hood, because if there is dust rising, it can avoid the risk of inhalation. Inhaling the dust of p-aminobenzenesulfonic acid may damage the respiratory system.
When taking it, the movement should be slow and careful, and the required amount should be measured with a precise measuring tool. Do not grab it with your bare hands to prevent contamination. After use, the utensils must be washed, and the remnants should not be discarded at will. This is not only for safety, but also for the sake of environmental protection.
If you accidentally touch it, if your skin is stained, rinse it with plenty of water immediately, then wash it with soap; if it enters the eyes, rinse it with running water immediately, and seek medical attention immediately. If inhaled, move it to a fresh air place. If you feel unwell, you must also seek medical attention.
In short, the safety and operation standards of p-aminobenzenesulfonic acid must be followed by researchers. Adhering to this standard can ensure the smooth operation of the experiment and protect your own health.

Application Area

P-Aminobenesulfonic Acid (P-Aminobenesulfonic Acid) is used in various fields. In medicine, it can be used as a raw material for preparations, to help make drugs and treat people's diseases. In the dye industry, it can be used as a color source, adding brilliant colors to fabrics and adding color to the world. In the process of chemical analysis, it is also a key agent for accurately measuring and clarifying the properties of substances.
And in some industrial processes, it can be used as a catalyst to assist, promote the speed of reaction, and improve the efficiency of production. Although the body is tiny, it is indispensable in the fields of medicine, dyes, analysis, and industry. Like a star shining in the sky, each uses its best to develop various industries, add bricks and tiles, and achieve all things.

Research & Development

Yu Taste is dedicated to the research of P - Aminobenesulfonic Acid. This substance is of great research value in the field of chemistry.
At the beginning, Yu studied its physicochemical properties in detail and studied the structure of its molecules. After repeated experiments, analyze the mechanism of its reaction, and want to understand its changes under various conditions.
During this period, I encountered many problems. The purity of raw materials, the temperature of the reaction, and the control of time are all key. However, I was not discouraged and failed repeatedly.
After the method was obtained, it can be made into purer products. Explore its application again and hope to expand it to industry and medicine. Although the road ahead is long, I firmly believe that continued research will surely enable it to achieve greater development and add new achievements to both academia and industry.

Toxicity Research

Study on the toxicity of p-aminobenzenesulfonic acid
The investigation of the physical properties of taste and smell is related to people's livelihood. Today's research on p-aminobenzenesulfonic acid, which is a commonly used product in chemical industry. Its color is white and crystalline, and it is used in all fields of industry.
The investigation of toxicity should not be ignored. After various tests, it may be potentially dangerous to the body of living beings. When viewed in animals, if the amount involved is slightly large, it can disturb their physiological routines. Damage to their internal organs and cause metabolic channels.
And this substance enters the environment, and it also has accumulated troubles. Although it is slightly soluble in water, it will accumulate for a long time, which can be a sewage source and harm aquatic people. Although its poison did not appear for a moment, it was a disaster when viewed for a long time. Therefore, when using this thing, you should be careful to prevent its harm from flowing into the world and endangering the safety of all things.

Future Prospects

In the future world, the technology of transformation is improving day by day. In P-Aminobenesulfonic Acid, my heart is grand. Its nature is unique, and its uses are vast. It has been used in the field of dyeing and dyeing.
In the future, the technology has not yet been developed, and P-Aminobenesulfonic Acid will definitely develop its capabilities. In the world of dyeing, the color will be more durable and lasting, and the beauty of human clothing will be preserved. The way to go, or we can help research new products, heal the disease like a sinking disease, and save the people from the pain.
Our researchers, who have exhausted our intelligence, explore its secrets, and make P-Aminobenesulfonic Acid so good. Looking forward to the future, this thing can benefit the world, and there will be extraordinary benefits in work and people's livelihood. This is what I have been looking forward to in the future.

Frequently Asked Questions

What are the main uses of P-Aminobenesulfonic Acid?

P-aminobenzenesulfonic acid has a wide range of uses. In the dye industry, it is an indispensable intermediate. It can produce many azo dyes, such as direct dyes, acid dyes and the like. Based on it, through complex compound reactions, it can produce colorful and long-lasting dyes for fabric printing and dyeing, making fabrics colorful.
In the field of medicine, it also has important functions. It can be used as a raw material for the synthesis of some drugs and participates in the preparation process of many drugs. Or it provides specific structural units for drug molecules, which are related to the activity and efficacy of drugs and help the treatment of diseases.
In the pesticide industry, p-aminobenzenesulfonic acid also has a place. It can be used to synthesize pesticides to resist pests and diseases, protect the strong growth of crops, improve crop yield and quality, and ensure a bumper harvest in agriculture.
Furthermore, in analytical chemistry, it can be used as a raw material for acid-base indicators. By changing its color with pH, it accurately indicates the midpoint of chemical reactions, providing a key basis for chemical analysis and ensuring the accuracy of analytical results.
In addition, in leather, papermaking and other industries, p-aminobenzenesulfonic acid also plays a unique role. In leather tanning, it can improve the performance of leather; in papermaking process, or affect the characteristics of paper. In short, p-aminobenzenesulfonic acid has important value in many industrial fields and contributes greatly to the development of various industries.

What are the Physical Properties of P-Aminobenesulfonic Acid?

P-aminobenzenesulfonic acid, also known as p-aminobenzenesulfonic acid, is an important kind of organic compounds. Its physical properties are unique and it has applications in many fields.
Looking at its properties, it is a white to off-white crystalline powder under normal conditions, which is easy to store and use. Its melting point is quite high, reaching about 288 ° C. This characteristic makes it able to maintain a stable solid state within a certain temperature range, not easy to melt and deform, and provides convenience for related industrial processes and experimental operations.
In terms of solubility, it is slightly soluble in cold water, but easily soluble in boiling water, and has poor solubility in organic solvents such as ethanol, ether, and benzene. This property is crucial in the separation and purification of substances. For example, by taking advantage of the difference in solubility in water at different temperatures, high-purity P-aminobenzenesulfonic acid can be obtained by recrystallization.
In addition, P-aminobenzenesulfonic acid has certain stability and is not easy to react with common components in the air such as oxygen and carbon dioxide under normal conditions. It can be stored for a long time without deterioration. However, when exposed to strong acids and alkalis, its chemical properties will change, and it needs to be properly stored to avoid contact with such substances.
Due to its above physical properties, P-aminobenzenesulfonic acid is used as an important intermediate in the dye industry to synthesize a variety of dyes; in the field of medicine, it is also used in the preparation of certain drugs; in analytical chemistry, it can also serve as an acid-base indicator and other analytical reagents. It is actually widely used and has made great contributions to industrial production and scientific research.

What are the chemical properties of P-Aminobenesulfonic Acid?

p-Aminobenzenesulfonic acid has unique chemical properties, which is quite interesting. At room temperature, it is white crystalline and exists stably, just like a quiet environment, not easily disturbed by the outside world.
It is acidic and can quietly react with alkali substances, just like the intersection of yin and yang to generate corresponding salts. This reaction process is peaceful and orderly, like a quiet stream, slowly blending. Its acid characteristics are derived from the sulfonic acid group attached to the benzene ring, which is the source of acidity, lively and agile.
The amino group of p-aminobenzenesulfonic acid also has characteristics. It can interact with many reagents. If it encounters acylating reagents, the amino group will be like an active dancer, dancing with it, and acylating reactions will occur, resulting in novel things. Under certain conditions, the amino group can participate in the diazotization reaction, which is like starting a wonderful journey to generate diazonium salts. This diazonium salt is extremely active and can trigger many subsequent reactions, which seems to open a new chapter in the chemical world.
In addition, p-aminobenzene sulfonic acid has limited solubility in water, like a hidden person in water, partially dissolved and partially hidden. However, when the temperature rises, the solubility gradually increases, just like a sleeper gradually waking up and merging into the embrace of water.
Its stability is worth mentioning. In normal environments, it can be stored for a long time, and its properties are difficult to change. However, when encountering special things such as strong oxidizers, it will also change, just like a calm lake throwing boulders into it, causing layers of ripples. Its chemical properties are rich and diverse, and it is like a magic key in the fields of organic synthesis, opening the door to many reactions and playing an indispensable role.

What are the precautions for P-Aminobenesulfonic Acid in the production process?

When preparing p-aminobenzenesulfonic acid, it is necessary to pay attention to many things. First, it is related to the selection and treatment of raw materials. The raw materials used should be of high quality and pure and free of impurities, which is the foundation for ensuring the purity and yield of the product. Fine pretreatment of raw materials, such as proper purification and accurate weighing, can make the reaction proceed smoothly.
Second, the control of reaction conditions is particularly critical. The temperature needs to be strictly controlled. This reaction is suitable for a specific temperature range. If the temperature is too high or too low, side reactions can occur, or the reaction rate can be delayed, and even the reaction is difficult to start. Generally speaking, accurate heating devices and temperature measuring instruments are required to ensure that the reaction temperature is stable within a suitable range.
Furthermore, the reaction time cannot be ignored. The reaction duration is too short, the raw materials may not be fully converted, resulting in low yield; if the duration is too long, it may cause excessive reaction and generate unnecessary by-products. Therefore, it is necessary to rely on rich experience or experimental exploration to find the best reaction time.
Fourth, the operation process must be standardized. Whether it is the order of adding drugs, or the rate and method of stirring, it has an impact on the reaction process. When adding drugs, they should be added slowly in a specific order to prevent sudden and violent reactions. Stirring must be uniform and moderate, so that the reactants can be fully contacted and promote the uniform development of the reaction.
Fifth, the separation and purification of the product is also an important link. After the reaction is completed, suitable separation methods, such as filtration, crystallization, etc., need to be selected to effectively separate the product from the reaction system. Then, by recrystallization and other methods to further purify to obtain high purity p-aminobenzenesulfonic acid. When operating with caution, try to reduce product loss. In this way, the ideal preparation effect can be obtained.

What is the market outlook for P-Aminobenesulfonic Acid?

p-Aminobenzenesulfonic acid, the ancient name may be called "p-aminobenzenesulfonic acid". Its market prospect is quite promising.
Looking at various industrial fields, p-aminobenzenesulfonic acid plays a pivotal role in the preparation of dyes. In today's printing and dyeing industry, it is very important to seek dyes with bright color and long-lasting, and this acid is the key raw material for the synthesis of many high-quality dyes. In printing and dyeing workshops, if you want to get the best cloth, you need the help of p-aminobenzenesulfonic acid, so it is constantly and widely needed in the dye industry.
As for the field of medicine, it is also indispensable. The synthesis of many drugs is based on p-aminobenzenesulfonic Nowadays, there are many people in the world who are sick and seeking medicine, and the industry of medicine is booming. The use of this acid in the synthesis of medicine will increase with the increase in the demand for medicine.
Furthermore, in the manufacture of pesticides, parabenesulfonic acid is also useful. Today's farmers want to protect their crops from pests, and the application of pesticides is common. This acid can be used to make efficient and low-toxic pesticides to protect the prosperity of farmers. Agriculture is the great capital of the world, and it is important to ensure the abundance of agricultural products. The prospect of parabenesulfonic acid in the pesticide industry is also very broad.
To sum up, looking at the development trend of dyes, medicine, pesticides and other industries, the demand for parabenzenesulfonic acid in the market is bound to grow day by day, and the future is bright. It can be a good thing for merchants and craftsmen to develop their skills.