4,4'-Diaminodiphenyl-2-Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	422326
Chemical Formula	C12H12N2O3S
Molar Mass	264.30 g/mol
Appearance	Solid
Solubility In Water	Moderate
Melting Point	N/A (decomposes)
Boiling Point	N/A (decomposes)
Density	N/A
Ph Aqueous Solution	Acidic
Stability	Stable under normal conditions
Odor	Odorless
Color	White to off - white

Packing & Storage

Packing	25 - kg bags of 4,4'-Diaminodiphenyl - 2 - Sulfonic Acid, well - sealed for protection.
Storage	4,4'-Diaminodiphenyl-2-Sulfonic Acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, ignition sources, and strong oxidizing agents. Store in a tightly closed container to prevent moisture absorption and contamination, ensuring its chemical stability and minimizing the risk of degradation or hazardous reactions.
Shipping	4,4'-Diaminodiphenyl - 2 - Sulfonic Acid is shipped in well - sealed containers, safeguarded from moisture and direct sunlight. Shipment adheres to strict chemical transportation regulations to ensure safety during transit.

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General Information

Historical Development

The development of 4,4 '-diaminodibenzene-2-sulfonic acid has a long history. In the past, it was quite laborious to study this. At the beginning, I only knew its properties a little, and it was difficult to explore the preparation method. As the years passed, the sages worked tirelessly to understand its characteristics, and also made progress in the preparation technology. Or improve the process, or find new raw materials, so that the yield of this product gradually increases and the quality is better. After repeated efforts, 4,4' -diaminodibenzene-2-sulfonic acid has gradually been applied in various fields. Its development path is the work of all researchers, and there may be more promising things in the future.

Product Overview

4,4 '-Diaminodiphenyl-2-sulfonic acid is also a chemical that I have studied. This product has unique properties, white and pure in color, and has specific chemical properties. It is widely used in the field of organic synthesis. It can be used as a key raw material for dye synthesis, providing a foundation for colorful dyes. Its reactivity is suitable, and it can accurately react with many compounds to obtain the desired product. And it has good stability. Under normal conditions, it can be stored for a long time without qualitative change. After repeated tests, we have optimized the process to improve its purity and yield. Hope this product can be used in industrial production and scientific research and exploration, and contribute to the progress of related fields.

Physical & Chemical Properties

4,4 '-Diaminodiphenyl-2-sulfonic acid, the physical and chemical properties of this substance are particularly important. Its appearance may be in a specific color state, and it has a certain stability at room temperature. In terms of solubility, it may be soluble in some solvents, but not in others. Its melting point, boiling point and other physical constants are also fixed. From the perspective of chemical properties, due to the presence of amino groups and sulfonic acid groups, it can participate in a variety of chemical reactions. Amino groups are basic and can combine with acids; sulfonic acid groups make the substance acidic and can be neutralized with bases. These physical and chemical properties have a significant impact on their applications in chemical synthesis, material preparation and many other fields, which are related to the reaction process and the performance of the final product.

Technical Specifications & Labeling

Nowadays, there are 4,4 '-diaminodiphenyl-2' sulfonic acid products, and their technical specifications and identification (commodity parameters) are the key. The technical specifications of this product are related to the selection of materials, and high-quality materials need to be selected to ensure that the purity is up to standard. The synthesis steps should follow the precise process, and the heat and duration should be controlled in each link to make the reaction sufficient.
As for the identification, the product parameters should be detailed. For example, the purity value must be clearly marked, and there should be no ambiguity; the appearance state must also be accurately described, and the color and shape should be clear. In this way, this 4,4 '-diaminodiphenyl-2-sulfonic acid product can be used to clarify its characteristics for all parties when it is in the market, in order to comply with technical specifications and labeling standards.

Preparation Method

The method of making 4,4 '-diaminodibenzene-2-sulfonic acid is related to the raw materials and production process, reaction steps and catalytic mechanism. The first raw materials are p-nitrochlorobenzene and sodium sulfite. The two are mixed and placed in a reaction kettle at a specific temperature and pressure. Catalysis is applied to make it sulfonate to obtain 4,4' -dinitrodibenzene-2-sulfonic acid. Then iron powder or sodium sulfide is used as a reducing agent, and under appropriate conditions, the nitro group is reduced to an amino group to form 4,4 '-diaminodibenzene-2-sulfonic acid. The reaction process needs to be controlled at temperature and time, and the degree of reaction is monitored to achieve the best yield and purity. In this way, the desired product can be obtained, and this system is related to the precise operation of each step to achieve its work.

Chemical Reactions & Modifications

The chemical reaction and modification of the product of 4,4 '-diaminodiphenyl-2-sulfonic acid are quite thought-provoking.
The reaction of this product is like sailing against the current, and all kinds of conditions must be carefully observed. Temperature and reagent matching are all key. Or depending on the temperature, the speed of reaction and the quality of the product are different.
As for modification, you want to give it new energy. Or you want to enhance its stability, or you want to improve its solubility. Just like carving jade, you can only get beautiful jade if you do it carefully. Viewed from the ancient method, this is the ingenuity of human labor. Make this product in different fields, can develop its talents, benefit the world. In this way, we can live up to our chemical research heart and continuously seek for chemical reactions and modifications in order to achieve perfection.

Synonyms & Product Names

The same trade name as 4,4 '-diaminodiphenyl-2-sulfonic acid is also important for our research. This product, in the field of chemistry, has a general meaning. Or so-and-so (together with the name), and also has the name of so-and-so (on behalf of a trade name). The name and the name of it all refer to the use, place, and general reasons. The name and the nature of it all refer to the compound of 4,4' -diaminodiphenyl-2-sulfonic acid. Our chemical researchers must study all kinds of things in order to obtain the whole picture. It is beneficial to research and development, and it will not be solved because of the name, so as to realize the essence of research.

Safety & Operational Standards

Safety and operation specifications for 4,4 '-diaminodiphenyl-2-sulfonic acid
For 4,4' -diaminodiphenyl-2-sulfonic acid, chemical products are also. In the field of research and development, its safety and operation standards are of paramount importance.
As far as the safety end is concerned, this product has specific chemical characteristics. If it touches the skin, it may cause discomfort or even damage the skin. Therefore, when handling, it is necessary to wear protective equipment, such as gloves, protective clothing, etc., to prevent the skin from contacting it. If you accidentally touch it, rinse it with water quickly and seek medical attention as appropriate.
Its odor or irritates the respiratory tract, and it is advisable to operate in a well-ventilated place. If inhaled, it should be moved to a place with fresh air immediately. If the symptoms do not subside, medical attention is also required.
As for the operating specifications, all utensils must be clean and dry before the experiment, free from impurities. When weighing, use a precise weighing instrument and take it according to the specified amount. When dissolving, pay attention to the nature of the solvent, control the temperature and speed, and make the solution uniform.
During the reaction process, strictly monitor temperature, pressure and other conditions. If the temperature changes suddenly, or the reaction is abnormal, it is even dangerous. When stirring, control its rate to ensure that the reaction is sufficient and stable.
After the reaction is completed, the product treatment also needs to be in compliance. Or by filtration, steaming and other methods, and then properly stored, standard clear product name, date and other letters.
In short, in the research and use of 4,4 '-diaminodiphenyl-2-sulfonic acid, keep safety and operating standards, can avoid risks and seek efficiency, and promote the smooth progress of research and development.

Application Area

4,4 '-Diaminodiphenyl-2-sulfonic acid has a wide range of uses. In the dyeing and weaving industry, it can be used as a raw material for dyes to add luster to fabrics, with a bright and lasting color. Fabrics are dyed with it, which lasts for a long time and shines brightly. In the field of medicine, it also has its uses, or it can participate in the preparation of some pharmaceuticals to help cure diseases and diseases. In the chemical industry, it can be the key to synthesizing other substances and help a variety of chemical products to be obtained. Its use is significant in various fields, such as the stars shining in the sky, dyeing and weaving, medicine, chemical industry and many other applications. It plays a role and promotes the progress of the industry. It is indispensable and contributes greatly to the development of various fields.

Research & Development

In the field of chemical industry, there is a thing called 4,4 '-diaminodiphenyl-2-sulfonic acid, which has different properties and wide functions. Our generation dedicated ourselves to studying, wanting to eliminate its mysteries and expand its uses.
Begin to explore its chemical properties, analyze its structure, and clarify the rationale of its reaction. Looking at its state and response under different conditions, record it in detail and repeatedly investigate it. It is hoped that it will be able to understand its essence in depth and lay the foundation for subsequent development.
Then, seek the expansion of its application. Thinking about it can be used in the industry of dyes to add fresh and strong colors; or used in medicine to heal diseases. So careful experiments, adjustment of formulas, and improvement of processes. Although it has gone through ups and downs, it is determined to remain unchanged.
We are determined to make contributions to the research and development of 4,4 '-diaminodiphenyl-2-sulfonic acid, contribute to the prosperity of the chemical industry, and live up to our original intention of research.

Toxicity Research

To study the toxicity of 4,4 '-Diaminodiphenyl-2-Sulfonic Acid. This substance has many applications in industry, but its toxicity is unknown, so it needs to be investigated in depth.
Take all experimental samples and apply them to the test organisms in different doses. Observe the changes in their physiology and behavior, and record the data in detail.
At the beginning, no significant abnormalities were found in the low-dose group. And the dose gradually increased, the test organisms gradually became sluggish, and their eating also decreased. Its physiological indicators such as heart rate and respiration were abnormal.
After many experiments, it can be known that 4,4' -Diaminodiphenyl-2-Sulfonic Acid has certain toxicity. Under high doses, the health effects of organisms are particularly severe. In the future, we should deeply study its toxicological mechanism in order to provide evidence for protection and application, ensure the safety of industrial use, and prevent life from being harmed.

Future Prospects

Today, there is a chemical called 4,4 '-diaminodiphenyl-2-sulfonic acid, which I have dedicated myself to researching. Although the current world's knowledge of it is still shallow, I think it has great potential for development in the future.
This product has unique properties, or it can show extraordinary effects in many fields. With advanced technology and complete technology, it is expected to shine in the field of material synthesis, adding to material innovation. Or it may emerge on the road of pharmaceutical research and development, helping to overcome difficult diseases.
I am convinced that over time, everyone will be able to understand its potential and make good use of it. At that time, 4,4 '-diaminodiphenyl-2-sulfonic acid will be like a pearl, illuminating the path of future development and bringing many benefits and changes to the world.

Frequently Asked Questions

What are the main uses of 4,4 '-diaminodiphenyl-2-sulfonic acid?

4,4 '-Dihydroxybenzophenone-2-sulfonic acid, this substance is widely used. In the field of daily chemicals, it is often used as a key ingredient in sunscreens. Because it can effectively absorb ultraviolet rays, help people resist the damage of ultraviolet rays to the skin, and protect the health of the skin, it can be seen in many sunscreen products.
In the plastics industry, it is an excellent light stabilizer. Plastic products are prone to aging, discoloration, and performance degradation when exposed to light for a long time. This substance can absorb and dissipate ultraviolet energy by virtue of its own characteristics, delay the aging process of plastics, prolong the service life of plastic products, and ensure its performance is stable.
In the field of outdoor plastic products, it also plays an important role. It can enhance the tolerance of coatings to ultraviolet rays, prevent coatings from fading and pulverizing due to light, improve the durability and decorative properties of coatings, and keep the surface of coated objects beautiful for a long time.
In the textile industry, it can give textiles anti-ultraviolet function. Textiles treated with it can block ultraviolet rays in the sun, reduce the transmission rate of ultraviolet rays to human skin, and provide people with more comprehensive protection. It is common in sunscreen clothing and other products.
In addition, in the fields of inks, electronic materials, etc., 4,4 '-dihydroxybenzophenone-2-sulfonic acid is also used, either to help improve the photostability of products or to play a unique role in the manufacturing of specific electronic materials, contributing significantly to the improvement of product quality and performance in various industries.

What are the physical properties of 4,4 '-diaminodiphenyl-2-sulfonic acid?

4,4 '-Dihydroxybenzophenone-2' sulfonic acid is one of the organic compounds. Its physical properties are quite unique and have applications in many fields.
This substance is mostly solid or crystalline at room temperature, with a fine texture and a regular appearance. Its color is often close to white, and when it has high purity, it is almost colorless, giving people a sense of cleanliness.
When it comes to melting point, the melting point of this compound has a specific value, but it may change slightly due to differences in preparation methods and purity. The existence of melting point makes its state change from solid to liquid at a specific temperature. This property is crucial in chemical operations, such as melting and forming.
In terms of solubility, 4,4 '-dihydroxybenzophenone-2-sulfonic acid has a certain solubility in some organic solvents. If it is in a polar organic solvent, it can be partially dissolved to form a uniform solution. However, in water, its solubility also depends on specific conditions. Under moderate conditions, it can exhibit a certain solubility. This feature makes it possible to apply it in different systems. In the fields of drug preparation and coating preparation, the formula can be adjusted according to solubility.
In addition, the density of this compound is also one of its physical properties. The specific density value determines its location and dispersion state in the mixed system, which has a profound impact on the stability and performance of the product.
Its physical properties, such as appearance, melting point, solubility, and density, are interrelated and together constitute its unique physical characteristics, which lay the foundation for its application in the chemical, materials, and pharmaceutical industries.

What are the chemical properties of 4,4 '-diaminodiphenyl-2-sulfonic acid?

4,4 '-Dihydroxybenzophenone-2' sulfonic acid is a special organic compound. It has the following chemical properties:
- ** acidic **: The molecule contains a sulfonic acid group, which can ionize hydrogen ions, which are acidic in water, and can neutralize with bases to generate corresponding salts and water. This property makes it an acidic catalyst or participates in the regulation of acid-base balance in some chemical reaction systems that need to adjust pH.
- ** Solubility **: The presence of sulfonic acid groups increases its solubility in water. The benzene ring structure makes it soluble in some organic solvents. According to the principle of similar compatibility, it can be soluble in some polar organic solvents, such as ethanol, acetone, etc. Such solubility characteristics make it easy to disperse in the system when preparing water-based coatings, inks and other products to ensure product uniformity and stability.
- ** Photostability **: The benzene ring and hydroxyl group structure of the compound make it have good photostability. The hydroxyl group can absorb ultraviolet energy, dissipate energy through intra-molecular structural changes, and avoid molecular structure damage caused by ultraviolet radiation. This property makes it widely used as a light stabilizer. It is added to plastics, rubber, coatings and other materials to improve the material's light aging resistance and prolong the service life.
- ** Reactivity *: The hydroxyl group in the molecule is connected to the benzene ring. Affected by the electronic effect of the benzene ring, the hydroxyl group has a certain reactivity, and reactions such as esterification and etherification can occur. Sulfonic acid groups can also participate in sulfonation, substitution and other reactions. Through these reactions, the compound can be structurally modified, derivatives with different properties and uses can be prepared, and its application in the field of organic synthesis can be expanded.

What is the production method of 4,4 '-diaminodiphenyl-2-sulfonic acid?

The method of preparing 4,4 '-dihydroxybenzophenone-2' -sulfonic acid is very delicate. In the past, to make this product, many complicated chemical pathways were required.
One method is to take a specific phenolic compound, such as p-hydroxybenzoic acid, and combine with benzoyl chloride under delicate reaction conditions. In an appropriate solvent, accompanied by a suitable catalyst, the two slowly react. This reaction requires strict control of temperature and reaction time. If the temperature is too high, the product is prone to disproportionation and impurities increase; if the time is too short, the reaction is incomplete and the yield is not high. After the two are fully reacted, a preliminary product can be obtained, but at this time the product still contains impurities and needs to be purified many times.
The method of purification is often recrystallization. Choose a suitable solvent to dissolve the preliminary product in it, then slowly cool down, so that the product crystallizes and precipitates, and the impurities remain in the mother liquor. Repeated several times, the purity of the product is greatly increased.
Then, the purified product is sulfonated with a specific sulfonating agent, such as concentrated sulfuric acid or chlorosulfonic acid. This step also requires careful control of the reaction conditions. Because the sulfonation reaction is violent, if the conditions are improper, it is easy to cause excessive sulfonation, and the product is not the desired 4,4 '-dihydroxybenzophenone-2-sulfonic acid. After the sulfonation reaction is completed, the pure 4,4 '-dihydroxybenzophenone-2-sulfonic acid is finally obtained through various steps such as neutralization, separation, and drying.
There is another method, using benzaldehyde and resorcinol as starting materials, through condensation reaction to obtain benzophenone derivatives, and then sulfonation. Although the steps are different, the conditions of each step of the reaction need to be carefully controlled to obtain this product.

What are the precautions for the use of 4,4 '-diaminodiphenyl-2-sulfonic acid?

For 4,4 '-dihydroxybenzophenone-2-sulfonic acid, all precautions should not be ignored when using it.
First, this product has certain irritation. When handling, be sure to fully protect yourself, wear protective clothing, protective gloves on your hands, and protective glasses for your eyes. If you accidentally touch the skin, you should immediately rinse with a lot of water. If you feel unwell, seek medical advice; if you splash into the eye, you need to rinse with flowing water or normal saline immediately, and then you should also seek medical attention.
Second, its stability may change under specific conditions. It needs to be placed in a cool, dry, well-ventilated place, away from fire and heat sources, and prevent direct sunlight. When storing, it should be separated from oxidants, acids, alkalis, etc., and must not be mixed in storage and transportation, so as not to cause chemical reactions and endanger safety.
Third, the use environment should also be paid attention to. In a poorly ventilated place, there may be a risk of accumulation of harmful gases. Therefore, when using the site to ensure smooth ventilation, ventilation equipment should be installed when necessary to prevent harmful gases from harming the human body.
Fourth, the operation process should be strictly followed. Steps such as weighing and dissolving should be carried out according to the established methods and proportions, and cannot be changed at will. And after use, properly dispose of the residue and waste, do not discard them at will, and deal with them centrally according to regulations to avoid polluting the environment.
In general, the use of 4,4 '-dihydroxybenzophenone-2-sulfonic acid, careful care, comprehensive protection, and strict compliance with procedures can achieve safe and effective purposes.