4,4'-Diaminobiphenyl-2,2'-Disulfonic Acid

Lingxian Chemical

Specifications

HS Code	521233
Chemical Formula	C12H12N2O6S2
Molecular Weight	344.36 g/mol
Appearance	Solid (usually powder or crystalline form)
Color	Typically white to off - white
Solubility In Water	Soluble in water
Odor	Odorless
Melting Point	Decomposes rather than having a distinct melting point
Ph In Solution	Acidic, due to the sulfonic acid groups
Stability	Stable under normal conditions, but may react with strong oxidizing agents

Packing & Storage

Packing	5 - kg pack of 4,4'-Diaminobiphenyl - 2,2'-Disulfonic Acid in sealed chemical - grade bag.
Storage	4,4'-Diaminobiphenyl-2,2'-disulfonic acid should be stored in a cool, dry, and well - ventilated area. Keep it away from heat sources, open flames, and incompatible substances like strong oxidizers. Store it in a tightly - sealed container to prevent moisture absorption and potential degradation, ensuring its stability during storage.
Shipping	4,4'-Diaminobiphenyl-2,2'-Disulfonic Acid is shipped in sealed, corrosion - resistant containers. It's transported with proper handling to prevent spills, following all safety regulations for chemical shipments.

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4,4'-Diaminobiphenyl-2,2'-Disulfonic Acid

General Information

Historical Development

4,4 '-diaminobiphenyl-2,2' -disulfonic acid, the development of this substance has been traced in ancient times. In the past, chemical researchers first ventured into its field and explored its properties. At that time, the conditions were difficult, but everyone worked tirelessly. As the years passed, researchers refined their skills and deepened their understanding of it. In the synthesis method, from crude to exquisite, the yield also gradually increased. The application is also limited and gradually expanded. It was first used in specific niche fields, and later expanded to many industries. After several generations of researchers' efforts, it has today's appearance. Its historical evolution is actually a microcosm of the development of chemistry, witnessing the process of our generation's continuous research and breakthrough.

Product Overview

4,4 '-diaminobiphenyl-2,2' -disulfonic acid, this is the chemical I recently studied. Its unique properties are white to light gray powder, soluble in water, and exhibit extraordinary chemical activity under specific conditions.
The preparation of this product is quite delicate, and it needs to be carefully reacted in multiple steps. First, a specific raw material is used, and the key reaction is carried out through fine proportions and conditions to obtain the intermediate. Then the intermediate is converted, and the temperature, pH and other factors are precisely regulated to obtain 4,4 '-diaminobiphenyl-2,2' -disulfonic acid.
It has a wide range of uses. In the dye industry, it can give fabrics a brilliant color and lasting color. In the field of pharmaceutical synthesis, it is also a key raw material to help the development of new drugs. I am convinced that with the deepening of research, its potential will be further revealed, bringing new opportunities to many fields.

Physical & Chemical Properties

For 4,4 '-diaminobiphenyl-2,2' -disulfonic acid, the physical and chemical properties of its substances are related to many aspects. Looking at its physical properties, it often takes a specific form at room temperature, or is a powder, or has a specific color. When it comes to solubility, in water and some solvents, each has its own performance, either soluble or insoluble. Chemically, the amino group in its structure interacts with the sulfonic acid group, so that the substance can participate in many chemical reactions under specific conditions. The reactivity of the amino group may react with acids; the characteristics of the sulfonic acid group also affect its stability in different environments. These physical and chemical properties are of great significance in chemical production, scientific research experiments and other fields, laying the foundation for related applications.

Technical Specifications & Labeling

Today, there is 4,4 '-diaminobiphenyl-2,2' -disulfonic acid, which is very important in the field of chemical industry. Its technical specifications and identification (commodity parameters) need to be clearly identified.
Looking at its technical specifications, the first purity is very high, and the impurities must be minimal to ensure high quality. And its physical properties, such as color, crystal form, etc., are all fixed.
As for the identification (commodity parameters), the molecular weight and molecular formula should be accurate, which is its essential sign. Parameters such as solubility and stability are also key to the effectiveness of its application. On the occasion of production and application, strict adherence to this technical specification and identification (commodity parameters) allows 4,4 '-diaminobiphenyl-2,2' -disulfonic acid to perform its functions and add luster to the chemical industry.

Preparation Method

The preparation method of 4,4 '-diaminobiphenyl-2,2' -disulfonic acid is related to the raw materials and production process, reaction steps and catalytic mechanism.
First, an appropriate amount of biphenyl is taken, and after sulfonation, concentrated sulfuric acid is used as the sulfonating agent. At a specific temperature and time, the biphenyl molecule is introduced into the sulfonic acid group to form biphenyl-2,2 '-disulfonic acid. Afterwards, the product is nitrified with an appropriate nitrifying agent, such as mixed acid (mixture of nitric acid and sulfuric acid), under strictly controlled reaction conditions, to obtain 4,4' -dinitrobiphenyl-2,2 '-disulfonic acid. Then with a suitable reducing agent, such as the combination of iron powder and hydrochloric acid, or catalytic hydrogenation, the nitro group is reduced to an amino group, and the final product is 4,4 '-diaminobiphenyl-2,2' -disulfonic acid. During the reaction process, it is necessary to precisely control the temperature, the proportion of reactants, the reaction time and other factors, and pay attention to the separation and purification of each step to ensure the purity and yield of the product.

Chemical Reactions & Modifications

Nowadays, there is a chemical substance 4,4 '-Diaminobiphenyl-2,2' -Disulfonic Acid. In chemical reactions and modifications, our chemists should investigate in detail. The reaction of this substance requires the investigation of its molecular structure and the search for activity check points. If appropriate reagents are used, nucleophilic substitutions may be induced to occur, so that sulfonic acid groups or amino groups participate in the reaction to modify its properties.
When modified, its water solubility can be increased or its chemical stability can be changed. For example, by modifying the amino group with a specific reaction, it can adjust its acidity and alkalinity, and then change its solubility in different media. Or the sulfonic acid group can participate in the condensation reaction to form a new polymer, giving this substance different physical and chemical properties. We should use our sophisticated instruments to analyze the reaction process in detail, seeking the best reaction and modification effects, and make every effort for the progress of chemistry and the new use of substances.

Synonyms & Product Names

Today there is a thing called 4,4 '-Diaminobiphenyl-2,2' -Disulfonic Acid. The synonyms and trade names of this thing are also important for our investigation. Its synonyms may be named after its characteristics and structure. The name of the product is chosen by the merchant to recognize the difference of its product and to facilitate the market.
The synonyms of husband cover its chemical essence and characteristics in order to achieve the effect of accurate reference. The name of the product may contain the ingenuity of the merchant, hoping to attract the attention of everyone. Although the two names are different, they actually refer to the same thing. In the process of my chemical research, I can obtain the details of the synonyms and trade names of this thing, use it correctly, and make progress in research. It is of great benefit to all things in the chemical industry.

Safety & Operational Standards

Specifications for the safety and operation of 4,4 '-diaminobiphenyl-2,2' -disulfonic acid
F 4,4 '-diaminobiphenyl-2,2' -disulfonic acid, chemical products are also used in various fields of experiment and production. However, in order to ensure safety, it is essential to follow the rules of operation.
When it comes to storage, find a cool, dry and well-ventilated place. Avoid direct sunlight to prevent its qualitative change. Seal the container to prevent the entry of moisture and impurities, and avoid co-storage with strong oxidants, strong alkalis, etc., to prevent unexpected reactions.
When operating, protective equipment is necessary. Such as anti-gas masks, protect the safety of breathing and avoid the invasion of harmful gases; wear protective gloves to protect the skin of the hands and avoid touching their objects; wear protective goggles to protect the eyes of the eyes. Operating environment, ventilation must be smooth, so that harmful gases can quickly disperse.
If you accidentally touch the skin, rinse quickly with a lot of water, followed by fine soap. If it enters the eyes, quickly open the eyelids, buffer with water, and then seek medical attention. If you inhale it by mistake, leave the scene quickly and go to a place with fresh air. If you feel unwell, call for medical assistance. If you eat it by mistake, do not urge vomiting, and send to the hospital for first aid.
The principle of waste should follow environmental protection regulations. Classified collection, handed over to professional institutions, must not be disposed of at will, so as not to pollute the environment.
In summary, the research and use of 4,4 '-diaminobiphenyl-2,2' -disulfonic acid, safety and operating standards, must be kept in mind, practice in reality, in order to ensure all things smooth and people's peace.

Application Area

4,4 '-diaminobiphenyl-2,2' -disulfonic acid, this substance has a wide range of uses. In the field of printing and dyeing, it can be used as a dye intermediate to make fabrics fresh and have good color fastness, and will not fade after years and washing. In the pharmaceutical and chemical industry, or as a raw material for the synthesis of specific drugs, it participates in the construction of key compounds to help human health. In scientific research and exploration, its special structure may lead to the creation of new materials and help optimize material properties, such as improving the stability and functionality of materials. With its unique characteristics, Siwu shines in various fields, contributing extraordinary power to the progress of industry and scientific research, and is sincerely a treasure of the chemical world.

Research & Development

Today there is a thing called 4,4 '-Diaminobiphenyl-2,2' -Disulfonic Acid, and we take it as our duty to study it. The nature of this thing is related to various fields of chemical industry, and it is quite important for business use.
We study it carefully to explore its chemical properties and craftsmanship. After months of study, we analyze its structure, measure its quality, and seek its delicacy. On the top of craftsmanship, think of new ways and create techniques, hoping to improve its production and improve its quality.
Looking forward to the future, this thing can be explored by us, and it can show new appearance and extraordinary ability in business use. Make the technology advance the industry prosperous, and add bricks and tiles to the progress of chemical industry, and expand the magnificent scenery.

Toxicity Research

The taste of the nature of things is related to the use of human beings, and it cannot be ignored. Today's research on 4,4 '-Diaminobiphenyl-2,2' -Disulfonic Acid, the study of its toxicity is particularly important.
This thing is used in work and research, or it may be useful. However, how toxic it is, it cannot be ignored. It is necessary to carefully examine its response to various things in different situations, and its sound to the living body. Observe whether it is easy to enter the body, and how it can harm the organs and disrupt qi and blood.
Examine the classics in detail, collect the evidence of experiments, and explore the strength and severity of its toxicity. After the investigation, we can know that it is appropriate to ban its use, to protect people from danger, and to use this chemical substance properly to avoid disasters and profit, which is the responsibility of the researcher.

Future Prospects

Today there is a thing named 4,4 '-diaminobiphenyl-2,2' -disulfonic acid. I have been studying this thing for a long time, and I often think about its future development. This material is unique, or in the field of chemical industry, it has extraordinary uses.
In the future, I hope it can help the dyeing and weaving industry, with a brighter and longer-lasting color, or in the way of medicine, it will become a key agent and cure various diseases. The road of scientific research is long and far-reaching, but my heart is firm, and I hope to open up new frontiers with this thing. Although the road ahead is unknown and there are many obstacles, I believe that with time, it will be able to tap its endless potential, seek well-being for the world, and develop the grand future. It will live up to the painstaking research of our generation.

Frequently Asked Questions

What is the main use of 4,4 '-diaminobiphenyl-2,2' -disulfonic acid?

4,4 '-Dihydroxybiphenyl-2,2' -disulfonic acid is one of the organic compounds. It has a wide range of uses and has important applications in many fields.
First, in the dye industry, this compound is a key intermediate. Through a series of chemical reactions, it can be converted into various dyes with bright color and excellent performance. Because of its special molecular structure, it can endow dyes with excellent dyeing properties, making fabrics dyed evenly and have a long-lasting color, so it is very popular in the textile printing and dyeing industry.
Second, in the field of polymer materials, 4,4 '-dihydroxybiphenyl-2,2' -disulfonic acid also plays an indispensable role. It can be used to prepare special engineering plastics to improve the heat resistance, mechanical properties and chemical stability of plastics. Polymer materials made from it are often used in aerospace, electronics and other fields that require strict material properties to help related products achieve better performance.
Furthermore, in pharmaceutical chemistry, the compound also shows potential application value. Its structural characteristics may provide novel ideas and key structural units for the design and synthesis of drug molecules. Through chemical modification and modification, it is expected to develop new drugs with specific pharmacological activities and contribute to human health.
In conclusion, 4,4 '-dihydroxybiphenyl-2,2' -disulfonic acid occupies an important position in many aspects of industrial production and scientific research. With the continuous progress of science and technology, its application prospects will also be broader.

What are the physical properties of 4,4 '-diaminobiphenyl-2,2' -disulfonic acid

4,4 '-Dihydroxybiphenyl-2,2' -dicarboxylic acid is a kind of organic compound. Its physical properties are quite characteristic, and the investigation of its properties is of great significance in the field of chemistry.
The color state of this compound is mostly solid at room temperature, or it is a white crystalline powder. It is delicate, uniform in texture, and soft in luster. Its melting point is a key physical constant. After accurate determination, it is within a specific temperature range. The value of this melting point is an important basis for the identification and purity judgment of this substance.
When it comes to solubility, it shows a certain solubility in common organic solvents, such as ethanol and acetone. However, in water, its solubility is relatively limited, and this property is closely related to the interaction between polar groups and non-polar parts contained in the molecular structure. Due to the characteristics of the molecular structure, the interaction between the polar part and the water molecule, and the hydrophobic effect caused by the non-polar part, the solubility in water is not good.
In addition, its density is also a specific value, which reflects the compactness of the molecular accumulation of the substance, which has a potential impact on its distribution and behavior in different media.
The physical properties of 4,4 '-dihydroxybiphenyl-2,2' -dicarboxylic acids have important applications in organic synthesis, materials science and other fields. Its solid state characteristics make it easy to store and transport; its melting point characteristics can provide guidance for temperature control in the synthesis process; and its solubility characteristics can help to select suitable reaction solvents and separation and purification methods. All of these demonstrate the important value of its physical properties research.

Is the chemical properties of 4,4 '-diaminobiphenyl-2,2' -disulfonic acid stable?

4,4 '-Dihydroxybiphenyl-2,2' -dicarboxylic acid, this material is stable. In its molecular structure, the connection between dihydroxyl and biphenyl, and the specific position of dicarboxylic acid give it unique chemical properties. In terms of stability, the presence of benzene ring makes it chemically inert to a certain extent. Dihydroxyl groups can participate in a variety of chemical reactions, but under normal conditions, if there is no drastic change in the environment, its structure is not easy to be damaged.
Furthermore, although the dicarboxylic acid group has certain activity, 4,4 '-dihydroxybiphenyl-2,2' -dicarboxylic acid can maintain a relatively stable state under conventional temperature, pressure and common chemical environments. Its stability also depends on the forces acting within the molecule, such as hydrogen bonds, van der Waals forces, etc. The internal forces of the molecule check and balance each other, which helps to maintain the stability of the overall structure.
However, it needs to be understood that in case of extreme conditions such as high temperature, strong acid, strong base or strong oxidant, its stability may be affected. Under high temperature, the thermal movement of the molecule intensifies, and the chemical bond may be destroyed; strong acids and strong bases can react with hydroxyl and carboxyl groups to change their chemical structure; strong oxidants can also oxidize some groups in the molecule. However, under normal experimental and storage conditions, 4,4 '-dihydroxybiphenyl-2,2' -dicarboxylic acid can remain stable for a long time.

What are the precautions for 4,4 '-diaminobiphenyl-2,2' -disulfonic acid in the production process?

For 4,4 '-dihydroxybiphenyl-2,2' -disulfonic acid, many matters need to be paid attention to in the manufacturing process.
First, the purity of the raw material is crucial. If the raw material is pure, the product is of high quality. If the raw material is mixed with impurities and impurities are mixed into the product, the product will be impure, which will affect its performance and application. Therefore, when using raw materials, when carefully reviewing their purity, choose high-purity materials to ensure that the process is smooth and the product is good.
Second, the reaction conditions should not be ignored. Temperature, pH, reaction time, etc., all affect the reaction process and product quality. If the temperature is too high or low, the reaction rate may cause abnormalities, the product yield may decrease, or even cause side reactions to produce undesired products. The same is true of pH. Peracid or alkali may cause the reaction to be unbalanced, which will damage the structure and performance of the product. Therefore, the reaction conditions must be precisely controlled. According to the reaction characteristics and requirements, the temperature, pH should be set in a timely manner to ensure stable and efficient reaction.
Third, the cleaning and maintenance of the equipment is also important. The equipment is unclean, leaving impurities or remnants of the previous reaction, mixing new reactions and contaminating products. And if the equipment is damaged, it will affect the heat transfer and mass transfer of the reaction, etc., hindering the reaction. Therefore, regular cleaning of the equipment, keeping it clean and fully functional is the basis for the smooth operation of the process.
Fourth, safety protection must not be forgotten. The process may involve harmful and corrosive reagents and substances, and if you don't pay attention, it will endanger the person. Operators should be aware of the nature and hazards of various substances, and wear suitable protective equipment, such as gloves, goggles, protective clothing, etc. And work in a well-ventilated place to prevent the accumulation of harmful gases. At the same time, be familiar with emergency treatment methods, and respond quickly in case of accidents to reduce damage.

What are the environmental effects of 4,4 '-diaminobiphenyl-2,2' -disulfonic acid?

4,4 '-Dihydroxybiphenyl-2,2' -disulfonic acid has a wide range of effects on the environment. This compound has a certain water solubility, and if it exists in water, it may cause changes in water quality. Due to the sulfonic acid group, it can increase its solubility and stability in water, and then spread in aquatic ecosystems.
In terms of aquatic organisms, it may be potentially toxic. It may interfere with the normal physiological functions of aquatic organisms, such as affecting the respiration, reproduction and other processes of fish. Larval organisms are more sensitive to it or cause changes in population numbers. And because of its stable structure, it is difficult to be rapidly degraded by the natural environment and is easy to accumulate in the environment.
Soil environment is also affected by it. If wastewater and soil containing this substance are polluted, it will change the soil chemical properties and affect the structure and function of soil microbial community. Microorganisms are crucial to soil material circulation and nutrient transformation, and their disturbance may cause changes in soil fertility and affect plant growth.
Although its direct impact in the atmospheric environment is relatively small, it enters the atmosphere in a small amount through wastewater treatment, industrial discharge, or volatilization, and then returns to the ground or water body through dry and wet deposition to complete environmental migration and continue to affect the ecology. In conclusion, 4,4 '-dihydroxybiphenyl-2,2' -disulfonic acid has an impact on various environmental media, and it needs to be handled with caution to reduce its negative effects on the ecosystem.