4-Amino-1,1'-Diphenylamine-2-Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	300525
Name	4-Amino-1,1'-Diphenylamine-2-Sulfonic Acid
Chemical Formula	C12H12N2O3S
Molar Mass	264.30 g/mol
Appearance	reddish-brown crystals or powder
Solubility In Water	slightly soluble
Solubility In Organic Solvents	soluble in ethanol, slightly soluble in ether
Ph Aqueous Solution	acidic
Melting Point	257 - 263 °C
Stability	stable under normal conditions
Hazard Class	irritant

Packing & Storage

Packing	100g of 4 - Amino - 1,1'-Diphenylamine - 2 - Sulfonic Acid packaged in a sealed plastic bag.
Storage	4 - Amino - 1,1'-Diphenylamine - 2 - Sulfonic Acid should be stored in a cool, dry place away from direct sunlight and heat sources. Keep it in a well - sealed container to prevent moisture absorption and contact with air, which could lead to oxidation. Store it separately from incompatible substances like strong oxidizers to ensure safety.
Shipping	4 - Amino - 1,1'-Diphenylamine - 2 - Sulfonic Acid is shipped in well - sealed containers. Special care is taken to prevent moisture and physical damage during transit, following all chemical shipping regulations.

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4-Amino-1,1'-Diphenylamine-2-Sulfonic Acid

General Information

Historical Development

The formation of 4-amino-1,1 '-diphenylamine-2-sulfonic acid has a long history. In the past, many sages have diligently explored the chemical path to obtain this delicate thing. At the beginning, the conditions were scarce, but everyone was determined. After countless attempts, either from the ratio of raw materials to change, or from the reaction conditions to study. From ignorance to gradual understanding, from crude to refined. Years pass, technology becomes more and more mature. The difficulties of the past have turned into today's smooth road. Today, the method of preparing this compound is quite complete and can be produced stably. Looking back on its development process, it is a shining chapter in the long river of chemical evolution, witnessing the efforts of countless wise people, and paving the foundation for subsequent chemical exploration and guiding the way forward.

Product Overview

4-Amino-1,1 '-diphenylamine-2-sulfonic acid is an important substance for chemical research. It has unique properties, distinct color states, and often takes on a specific appearance. This substance has important uses in many fields of chemistry. In the field of analysis and detection, it can provide a key basis for accurate judgment; in the synthesis reaction, it can be used as a key raw material to help create new compounds.
The preparation method goes through several processes and requires fine control of conditions. Temperature and humidity, and the proportion of reactants are all key. However, its preparation is not easy, and the product is impure due to a slight difference.
It has shown significant value in many aspects such as industry and scientific research, and has made great contributions to promoting the development of the field of chemistry. It is an indispensable part of chemical research.

Physical & Chemical Properties

The physicochemical properties of 4-amino-1,1 '-diphenylamine-2-sulfonic acid are particularly important. Looking at its shape, it may be crystalline under normal conditions, white or slightly colored. Its solubility may have a certain degree of dissolution in water, but it also has different manifestations in organic solvents, which is related to the interaction between its molecular structure and the solvent. When it comes to stability, it can still maintain a stable state at room temperature and pressure. In the case of high temperature and strong acid and alkali conditions, it may undergo chemical changes. Its melting point and boiling point are all key parameters characterizing physical properties. The melting point or in a specific temperature range, the boiling point is also related to it. These properties need to be carefully considered during chemical preparation and application in order to make good use of this material and maximize its effectiveness.

Technical Specifications & Labeling

For 4-amino-1,1 '-diphenylamine-2-sulfonic acid, its process specifications and identification (commodity parameters) are the key. This compound has attracted much attention in the field of chemical industry. Its process specifications need to be rigorous, and the selection of raw materials must be pure and free of impurities to ensure high quality. The reaction conditions also need to be precisely controlled. The temperature and pressure are fixed. If there is a slight difference, the purity of the product will be affected.
As for the label, when its chemical characteristics, such as molecular formula and molecular weight, are clearly marked. Appearance and properties should also be described in detail so that the user can see at a glance. In the commodity parameters, the purity, impurity content and other data need to be accurate, which is the key to measuring the quality of the product. In this way, it can be fully effective in chemical applications and live up to the efforts of developers.

Preparation Method

The preparation method of 4-amino-1,1 '-diphenylamine-2-sulfonic acid is related to the raw materials and production process, reaction steps and catalytic mechanism.
The raw materials need to be accurately selected from aniline, p-nitrochlorobenzene, etc. The aniline and p-nitrochlorobenzene are placed in a reaction kettle in an appropriate proportion, and potassium carbonate is used as an acid binding agent to stir the reaction at a specific temperature and pressure. This is the key starting step.
When the reaction reaches a certain degree, cool down, add an appropriate amount of sodium bisulfite, adjust the pH, and promote the sulfonation reaction to form an intermediate product. After the reduction process, the nitro group is reduced to an amino group using a reducing agent such as iron powder or sodium sulfide to obtain the target product. During the
reaction process, temperature, pressure, ratio of reactants and reaction time must be strictly controlled. In the catalytic mechanism, the acid binding agent promotes the positive progress of the reaction, and the reaction conditions cooperate to ensure the purity and yield of the product. In this way, through multiple steps of fine operation, 4-amino-1,1 '-diphenylamine-2-sulfonic acid can be obtained.

Chemical Reactions & Modifications

4-Amino-1,1 '-diphenylamine-2-sulfonic acid is also a chemical compound. Its chemical properties, to the gist. The reaction of this compound is often involved in the synthesis. Its chemical properties are also special, and can be different under general conditions.
In the past, researchers have studied its anti-chemical system to find out its essence. Or a catalytic method to increase the rate of reaction and improve its quality. And its chemical properties can be controlled by factors such as temperature and solubility.
In the room, different methods can be used to obtain the best anti-chemical products. Or change the proportion of the reaction material, or different catalysts, all of which are good for their chemical properties, so that this compound can be used in a variety of fields, such as dyes, compounds, etc., for better use.

Synonyms & Product Names

4-Amino-1,1 '-diphenylamine-2-sulfonic acid, its nickname and trade name, is also very interesting.
Fu 4-amino-1,1' -diphenylamine-2-sulfonic acid, or p-aminophenyl-o-sulfonic acid aniline, which is one end of the nickname. Or called barium diphenylamine sulfonate intermediate, because it plays an important role in the relevant chemical synthesis process, it is also the key intermediate for the preparation of barium diphenylamine sulfonate.
As for the trade name, it also has an exclusive title in the industry. With its unique chemical properties and application scenarios, it has emerged in the list of chemical products. The nickname and trade name of this compound are like logos, highlighting its characteristics and uses in the field of chemistry. They are well known to chemical researchers and practitioners, and are also a part of the chemical knowledge system. We need to explore them in depth to clarify their details.

Safety & Operational Standards

4-Amino-1,1 '-diphenylamine-2-sulfonic acid is also a chemical product. Its safe production and operation specifications must not be ignored.
Although this material is not extremely strong, it should not be ignored. When storing, it should be placed in a dry and cool place, protected from water and fire, and kept away from all flammable, explosive and corrosive materials. If the storage is inappropriate, causing it to get damp or heat, it may change biomass and endanger safety.
When operating, make sure that the operator wears complete protective equipment, such as masks to protect breathing, gloves to protect hands, and protective clothing to cover the body. If you accidentally touch the skin, or cause allergies or burns; if you inhale its dust and mist, it will also damage the respiratory tract.
And in the operation room, it must be well ventilated to prevent the accumulation of gas. If there is a leak, when the source is quickly cut off, the polluted place should be surrounded and controlled, and it should not be scattered. Small leaks can be sucked up by sand, vermiculite, etc.; large leaks should be collected by professional equipment and properly disposed of, so as not to pollute the environment.
Furthermore, the operator should know the emergency method. In case of an accident, such as touching the body or entering the eyes, rinse with water quickly and seek medical attention urgently. As for a fire, it is advisable to choose the appropriate extinguishing agent according to its nature.
In short, in the safe production and operation of 4-amino-1,1 '-diphenylamine-2-sulfonic acid, it is necessary to follow the norms and be careful to ensure the safety of people and avoid all kinds of disasters.

Application Area

4-Amino-1,1 '-diphenylamine-2-sulfonic acid is also a chemical product. The scope of its application is quite wide. In the field of chemical analysis, it is often used as an indicator. When the process of titration, it can sensitively indicate the sign of discoloration, help the analyst to determine the end point of the reaction, and accurately measure the content of the substance. In the industry of dye manufacturing, it is also involved. With its special chemical structure, it can be used as a raw material for synthesizing specific color dyes, adding color to fabrics and other substances. And in some research experiments, because of its unique chemistry, it can be a key substance for exploring new reactions and new mechanisms, and it can lead to new directions in chemical exploration. It is very useful in chemical things.

Research & Development

Since modern times, chemistry has advanced, and all kinds of new things have emerged one after another. In today's words, 4 - Amino - 1,1 '- Diphenylamine - 2 - Sulfonic Acid, I have been studying this thing for a long time.
When I first got involved in this thing, I felt that its structure is exquisite and it contains a wonderful chemical mechanism. Then I studied the classics and visited various houses, wanting to understand its nature and explore its origin.
In the laboratory, observe its reaction and measure its data in a rigorous way. Observe its state and changes under different conditions. Each result is repeatedly verified to ensure accuracy.
After long-term study, I have gradually understood its many characteristics and applications. I am also thinking about how to optimize the production method, improve the quality, and expand its use in a wider range. I am willing to use what I have learned to promote the development of this product, and make a small contribution to the progress of chemistry. I hope to have greater breakthroughs and achievements in the future.

Toxicity Research

Since modern times, the toxicity study of chemical substances has gradually become more and more important in the academic community. In this paper, the toxicity of 4-Amino-1,1 '-Diphenylamine-2-Sulfonic Acid also needs to be investigated in detail.
Observe its molecular structure, containing amine groups and sulfonic acid groups, both of which may have potential effects on biological organisms. After various experiments, observe its interaction with biological cells, observe the changes in cell morphology and metabolism. If applied to animals, pay attention to the differences in their behavior and physiological functions.
The study of toxicity cannot be done overnight. Factors such as dose, exposure route, and time of action need to be considered. Only preliminary results are known. At high doses, this substance may disturb the normal operation of cells and affect the nervous system of animals. However, to clarify the details, more research is needed to confirm the full picture of its toxicity and provide solid evidence for the world to use this substance.

Future Prospects

Guanfu 4 - Amino - 1,1 '- Diphenylamine - 2 - Sulfonic Acid This thing has shown its extraordinary ability in this world. However, the eyes of our generation should be placed in the future.
In the unfinished time, it may bloom in more ingenious fields. On the road of chemical industry, it is expected to use its power to open up new paths and make more delicate materials to meet the needs of all things.
The method of analysis will also be improved accordingly, becoming more and more accurate and subtle, exploring its subtle nature, and understanding its hidden power. In the field of medicine, it can be used as the foundation of a wonderful medicine to heal diseases; in the field of electronics, it can become a key element to promote progress.
The future development is still immeasurable. We should study it diligently to open up its endless possibilities, live up to this wonderful thing, and lead the path of chemical industry towards a bright realm.

Frequently Asked Questions

What is the chemical structure of 4-Amino-1,1 '-Diphenylamine-2-Sulfonic Acid?

4 - Amino - 1,1 '- Diphenylamine - 2 - Sulfonic Acid, Chinese name 4 - amino - 1,1' - diphenylamine - 2 - sulfonic acid, its chemical properties are as follows.
This compound is mainly composed of benzene and nitrogen atoms, forming the basic framework of diphenylamine. In which the amino group of one benzene is connected to the position (1 - position) of the benzene, and another benzene is connected, this 1,1 '- diphenylamine part. On the other benzene, the amino group (-NH2O) is connected at the 2-position, and the sulfonic acid group (-SO-H) is connected at the position of the amino phase, that is, it forms a complete solution of 4-amino-1,1 '-diphenylamine-2-sulfonic acid.
Its chemical formula can be C-H-N-O-S, and the molecular weight of the phase is 264.30. This compound has specific uses in chemical reactions and some applications such as dyes and analysis. The sulfonic acid group can provide acidity, which is advantageous for its decomposition under specific conditions and for some molecular crossings; the amino group can be substituted and combined with some nuclei, making it important in the synthesis and phase domains.

What are the main uses of 4-Amino-1,1 '-Diphenylamine-2-Sulfonic Acid?

4-Amino-1,1 '-diphenylamine-2-sulfonic acid, with a crystalline powder and a light purple color, is often used as an indicator for analytical chemistry experiments.
This agent is widely used in the field of redox titration. Because of the specific chemical environment, its color becomes acute, which can indicate the end point of titration. In the experiment of potassium dichromate titration of ferrous ions, when ferrous ions are oxidized, the solution potential gradually changes, and at the end point, 4-amino-1,1 '-diphenylamine-2-sulfonic acid transiently changes from colorless to purplish-red. This significant color change allows the experimenter to accurately judge the end of the reaction, and the data measurement is more accurate.
Furthermore, it is also indispensable in the analysis process such as the determination of total iron in steel. First, iron is converted into a specific valence state with an appropriate reagent, and then titration is performed. 4-Amino-1,1 '-diphenylamine-2-sulfonic acid, with its characteristics, provides a clear label for the monitoring of the reaction process and the determination of the endpoint, and helps the experimenter obtain reliable analysis results. It is of great significance for the quality control and composition analysis of steel.

What are the physical properties of 4-Amino-1,1 '-Diphenylamine-2-Sulfonic Acid?

4-Amino-1,1 '-diphenylamine-2-sulfonic acid, in the form of purple-brown crystalline powder, soluble in water and ethanol. Its physical properties are particularly important and have a great impact on many chemical processes and industrial applications.
Looking at its properties, the purple-brown crystalline powder gives it a different appearance from others. In addition, it can be used as an important basis for identification and preliminary judgment.
In terms of solubility, it can be soluble in water and ethanol, which is of great significance. In aqueous systems, its solubility can participate in many chemical reactions, such as ion exchange, complexation reactions, etc. It can also be dissolved in organic solvents such as ethanol, which makes it suitable for use as a reaction intermediate or in the preparation of specific reaction solutions in the field of organic synthesis.
Furthermore, its melting point, boiling point and other data, although not detailed, are also key physical properties. The melting point is related to its physical state transition temperature. During the heating process, the melting point is changed from solid to liquid state. This temperature point is of important guiding value for its processing, molding and stability research in high temperature environments. The same is true for boiling points. Understanding boiling points helps to control its behavior in the gas phase environment and is a key reference indicator in separation operations such as distillation and fractionation.
In addition, the physical property of density is of great significance to the accurate measurement and the ratio of the reaction system. If a quantitative reaction is carried out and its density is known, the required quality can be accurately measured to ensure that the reaction is carried out according to the predetermined stoichiometric ratio, thereby improving the reaction efficiency and product purity.
The physical properties of 4-amino-1,1 '-diphenylamine-2-sulfonic acid, from appearance to solubility, to melting point, boiling point, density, etc., play an indispensable role in many aspects of chemical research and industrial production, and have far-reaching significance for in-depth exploration of its chemical behavior and expansion of its application range.

What is the synthesis method of 4-Amino-1,1 '-Diphenylamine-2-Sulfonic Acid?

The synthesis method of 4-amino-1,1 '-diphenylamine-2-sulfonic acid is as follows:
Take aniline first, and react with an appropriate amount of sulfuric acid to form aniline sulfate. This step requires attention to the amount of sulfuric acid and the reaction temperature. If the temperature is too high, side reactions will easily occur, resulting in impure products.
Then, aniline sulfate is heated to promote its isomerization, resulting in p-aminobenzenesulfonic acid. In this reaction process, the control of heating rate and time is very critical. If the rate is too fast or the time is too short, the isomerization will be incomplete; if the time is too long, it may cause an overreaction.
Then take p-aminobenzenesulfonic acid and carry out a condensation reaction with aniline under specific conditions In this step, a suitable catalyst needs to be selected, and the reaction temperature and reaction time are strictly controlled, so that the condensation reaction can proceed smoothly to generate 4-amino-1,1 '-diphenylamine-2-sulfonic acid.
After the reaction is completed, the product needs to be separated and purified. Crystallization, filtration, washing and other methods are often used to remove impurities and improve the purity of the product. After these steps, 4-amino-1,1' -diphenylamine-2-sulfonic acid can be obtained. During the synthesis process, precise control of the reaction conditions at each step is the key to obtaining high-purity products.

4-Amino-1,1 '-Diphenylamine-2-Sulfonic What are the precautions in the use of Acid

4-Amino-1,1 '-diphenylamine-2-sulfonic acid, when using, many matters need to be paid attention to.
First, this substance has certain toxicity and irritation, and should not be taken lightly when exposed. During operation, be sure to wear suitable protective equipment, such as protective gloves, goggles and gas masks, to prevent it from contacting the skin, eyes, or inhaling the human body through the respiratory tract, causing damage to the body.
Second, 4-amino-1,1' -diphenylamine-2-sulfonic acid is relatively sensitive to light and heat. When storing, it should be placed in a cool, dry and well-ventilated place, away from fire and heat sources, and at the same time avoid light to prevent it from deteriorating due to photothermal action and affecting the use effect.
Third, during use, precise control of the dosage is the key. It should be accurately weighed and added according to specific experimental requirements or production process regulations, and the dosage must not be increased or decreased at will. Too much dosage may not only cause waste, but also cause side reactions; if the dosage is too small, it will be difficult to achieve the desired effect.
Fourth, this substance acts as an indicator in some chemical reactions, and it is necessary to pay attention to the conditions of the reaction system when using it. For example, the pH of the solution has a great impact on its indication effect. The pH of the solution must be adjusted to an appropriate range according to the needs of the reaction to ensure that its indication effect is accurate.
Fifth, after use, the remaining substances must not be discarded at will. Relevant regulations must be followed and properly disposed of to prevent pollution to the environment. At the same time, the used utensils should also be cleaned in time to avoid residual substances affecting subsequent experiments or production.