4-Aminoazobenzene-4'-Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	825964
Chemical Formula	C12H11N3O3S
Molar Mass	277.299 g/mol
Appearance	Orange - red solid
Solubility In Water	Slightly soluble
Melting Point	290 - 295 °C (decomposes)
Ph	No typical pH value as it's a solid, but in solution properties would depend on dissociation
Stability	Stable under normal conditions, but may decompose on heating
Sensitivity To Light	May be sensitive to light, potentially undergoing photochemical reactions
Odor	Odorless or very faint odor

Packing & Storage

Packing	100g of 4 - Aminoazobenzene - 4'-Sulfonic Acid packaged in a sealed chemical - grade container.
Storage	4 - Aminoazobenzene - 4'-Sulfonic Acid should be stored in a cool, dry place away from direct sunlight. Keep it in a tightly sealed container to prevent moisture absorption and contact with air, which could lead to degradation. Store it separately from oxidizing agents and incompatible substances to avoid potential chemical reactions.
Shipping	4 - Aminoazobenzene - 4'-Sulfonic Acid should be shipped in tightly sealed, corrosion - resistant containers. It must be labeled properly as a chemical. Shipments should comply with relevant hazardous material regulations to ensure safety during transit.

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General Information

Historical Development

4-Aminoazobenzene-4 '-sulfonic acid is also a chemical product. In the past, it was not covered, and the science of chemistry was not yet developed at that time, so it was difficult to explore its details.
and chemistry gradually flourished, and everyone began to pay attention to this thing. At the beginning, scholars studied its properties, analyzed its components, and gradually understood its rationale. As the years passed, the research deepened, and they knew that it could be used as a dye in the dyeing and weaving industry, helping to make the colors gorgeous.
However, the times changed, and they also felt that this thing might be harmful to the human body, so they used it cautiously. Researchers continue to explore, hoping to find better ways to protect its benefits and avoid its harm. From this perspective, the development of 4-aminoazobenzene-4 '-sulfonic acid fluctuates with the progress of chemistry and the increase of human intelligence, and ultimately seeks a harmless environment.

Product Overview

4-Aminoazobenzene-4 '-sulfonic acid is an important substance in chemical research. Its color state is different and often shows a specific appearance. This compound has unique chemical properties and often changes wonderfully in many reactions.
The preparation method is quite laborious and requires precise control of various conditions, such as temperature, reagent ratio, etc. If there is a slight difference, it is difficult to achieve the expected quality.
In the field of application, 4-aminoazobenzene-4' -sulfonic acid also develops its capabilities. Or used in the dyeing and weaving industry to give fabrics a brilliant color; or in scientific research experiments, to help explore the truth. However, it also needs to be treated with caution, because of its certain characteristics, or potential impact on the environment and biology. Therefore, those who study this thing should think about its advantages and disadvantages in order to promote its good use and avoid its harm.

Physical & Chemical Properties

The physical and chemical properties of 4-aminoazobenzene-4 '-sulfonic acid can be studied. Looking at its shape, it often takes a specific shape, or is a powder, or has a different form. Its color, or bright, or plain color.
In terms of its solubility, it may be soluble or insoluble in a specific solvent, which is determined by its molecular structure and solvent characteristics. Thermal stability is also a key property. When heated, it may be stable, or change, or decompose, or transform.
Its chemical activity cannot be ignored, and it can react with specific reagents to form new substances in various chemical reactions. This is all about the bonding and functional groups in its molecules, which are important for exploring the physical and chemical properties of this chemical. We will study it in detail.

Technical Specifications & Labeling

4-Aminoazobenzene-4 '-sulfonic acid is an important chemical product. Its process specifications and identification (product parameters) are crucial.
In terms of process specifications, the synthesis process needs to be carefully controlled. The ratio of raw materials must be accurate, and the reaction temperature and duration must also be strictly controlled. If the initial reactants meet, they need to be reacted at a specific temperature for several hours to ensure sufficient reaction.
As for the identification (product parameters), the purity should be clearly marked, which is related to its use and quality. And the physical properties, such as color, shape, etc., should be clearly indicated. In this way, users can be properly applied to various fields according to their characteristics, and product quality and safety are also guaranteed. In the chemical industry, strict adherence to this process specification and marking is essential for long-term development.

Preparation Method

Preparation of 4-aminoazobenzene-4 '-sulfonic acid (raw materials and production process, reaction steps, catalytic mechanism)
To prepare 4-aminoazobenzene-4' -sulfonic acid, prepare raw materials. With p-aminobenzene sulfonic acid and sodium nitrite as the group, supplemented by an appropriate amount of hydrochloric acid. Dissolve the p-aminobenzene sulfonic acid into an appropriate amount of water to form a uniform solution, and then slowly add a dilute hydrochloric acid solution containing sodium nitrite. This is the beginning of the reaction.
The reaction step needs to be temperature controlled, and it is suitable for low temperature, about 0 to 5 degrees Celsius, so that the diazotization reaction is smooth. When the diazonium salt is formed, another aniline is taken, dissolved in an appropriate alkaline solution, slowly poured into the diazonium salt solution, and stirred at the same time to promote the coupling reaction.
On the catalytic mechanism, the acid-base environment and temperature have a significant impact. The alkaline environment is aniline active and accelerates the coupling. Pay attention to the temperature control and the ratio of raw materials throughout the process. After this process, 4-aminoazobenzene-4 '-sulfonic acid can be obtained.

Chemical Reactions & Modifications

The transformation and inversion of Aminoazobenzene-4 '- Sulfonic Acid. The transformation and inversion of this object is worth exploring. Its inversion is caused by the transformation of the object. The degree and catalysis can both affect the inversion of it.

Its transformation properties can also be determined. Or it has the property of acid, and it can cause the reaction of things that are related to each other. Among them, some bases are given their specific transformation properties. However, in order to understand the inversion and inversion of it, it is still necessary to study the effects of various factors. Only by observing the image of its inversion and the generated things can we understand the transformation and help the field.

Synonyms & Product Names

4 - Aminoazobenzene - 4 '- Sulfonic Acid, this is a chemical substance. Its synonymous name may be referred to differently in the classics. According to the family of the past, there may be a person named "p-aminoazobenzene - 4' -sulfonic acid". This name is named after the characteristics of its chemical structure. "p-amino" indicates the position of its amino group, "azobenzene" indicates the structure of its main body, and "4 '-sulfonic acid" indicates the location of the sulfonic acid group.
In addition, between the market and business, there are also merchants who call it by another name, either in line with industry habits, or because it is easy to remember. However, no matter what the title is, it refers to this thing. Its synonymous names and trade names need to be made clear in both the academic and industry circles to avoid mistakes and hindrances to research and transactions.

Safety & Operational Standards

The safety production and operation specifications of 4-aminoazobenzene-4 '-sulfonic acid are related to the important matters of our chemical research and should be discussed in detail.
This compound has specific chemical properties and is the first safety protection during operation. The operator must wear complete protective equipment, such as protective clothing, goggles, gloves, etc., to prevent contact with the skin, eyes and eyes and cause damage to the body. Because of its irritation and toxicity, a little carelessness can lead to disaster.
There are also strict regulations on storage. It should be placed in a cool, dry and well-ventilated place, away from fire and heat sources. And it needs to be stored separately from oxidants, acids, alkalis, etc., and must not be mixed to prevent dangerous chemical reactions from occurring, causing fire and explosion.
During the operation, strictly follow the established procedures. Weighing, mixing and other steps should be accurate and there should be no omissions. If it involves heating, stirring and other operations, it is necessary to pay close attention to the reaction situation, control the temperature and rate, and beware of accidents. After the experiment is completed, properly dispose of the remaining materials and waste, in accordance with environmental protection requirements, and do not discard them at will to avoid polluting the environment.
Only by strictly adhering to these safety and operating practices can we achieve the purpose of scientific research while maintaining our own safety and the tranquility of the environment when studying 4-aminoazobenzene-4 '-sulfonic acid.

Application Area

The application field of 4-aminoazobenzene-4 '-sulfonic acid has been known since ancient times. This substance is often used as a color addition for dyes in the field of printing and dyeing. Because of its special structure, it can make fabrics dye bright colors and last for a long time, so it is very popular.
In the past, printing and dyeing craftsmen often used it as a base to prepare various colors and weave beautiful clothes. And in paper dyeing, it is also useful, which can make paper bright and eye-catching.
Furthermore, it is occasionally involved in scientific research. Because of its chemical properties, it can be used as a medium to study the reaction mechanism, helping researchers to understand the mystery of the reaction and understand the changes of substances. This is the past application of 4-aminoazobenzene-4 '-sulfonic acid, although it has been used for many years, its use should not be underestimated.

Research & Development

4-Aminoazobenzene-4 '-sulfonic acid has attracted much attention in the field of chemical research in China. In the past, the research on this substance mostly focused on its structure analysis. After various experiments and explorations, the subtlety of its molecular structure was revealed.
Today, the research focus is gradually shifting to the discovery of its characteristics and the expansion of its application. This substance may have unique properties in the field of dyes, which can make the color brighter and longer lasting. However, the road to research is by no means smooth. How to optimize the synthesis method, improve the yield and reduce impurities are all problems that need to be solved urgently.
In order to make breakthroughs, we study day and night to try new reaction conditions and raw material ratios. With unremitting efforts, we have taken a solid step in the research and development of 4-aminoazobenzene-4 '-sulfonic acid, enabling it to add luster to various industries and bloom a unique chemical light.

Toxicity Research

Taste the chemical industry, the categories are diverse, and the properties of substances are different. Today's research on 4-Aminoazobenzene-4 '-Sulfonic Acid, the study of its toxicity is crucial.
Looking at this substance, in various experiments, it gradually emerged. Or enter the body of living beings to observe its reaction. See its ability to affect physiology, or disturb the viscera, or disrupt the meridians. Its toxicity should not be underestimated.
However, the study of toxicity cannot be achieved overnight. It needs to be tested many times and investigated carefully. Use different methods to observe its changes in different environments. Or refer to the predecessors, or according to the current technology, in order to know its true appearance, the depth and scope of its toxicity, for the world to use this thing, set safety limits, avoid disasters in the future, to protect the safety of life and the environment.

Future Prospects

4-Aminoazobenzene-4 '-sulfonic acid is a chemical that I have been working on recently. At present, although I have a certain understanding of its many properties, I hope that its application can be pushed to a new height in the future.
I hope that in the future, through more delicate processes, the purity and quality of this chemical can be improved, so that it will shine more brightly in the field of fine chemicals. I also hope that through in-depth research, it will reveal its unique role in the synthesis of new materials, and contribute to the progress of materials science.
Over time, when the technology is mature, 4-aminoazobenzene-4 '-sulfonic acid may emerge in cutting-edge fields such as pharmaceutical research and development, high-end dye manufacturing, etc., injecting tremendous impetus into the development of related industries and leading the industry to an unprecedented level of brilliance. This is my hope for its future development.

Frequently Asked Questions

What is the main use of 4-Aminoazobenzene-4 '-Sulfonic Acid?

4-Aminoazobenzene-4 '-sulfonic acid, this substance has a wide range of uses. In the dyeing and weaving industry, it is often used as a raw material for dye synthesis. It can be transformed into a variety of bright dyes through exquisite chemical processes, which can be used to dye colorful fabrics, making the fabrics bright and lasting, and adding brilliance to textile products.
In the field of scientific research, it is also of great value. It is often used as an analytical reagent to help researchers accurately determine the characteristics and content of many substances. With its special chemical structure and properties, it can react specifically with specific substances, providing key clues and evidence for researchers to gain insight into the composition, structure and reaction mechanism of substances.
In some industrial production processes, 4-aminoazobenzene-4 '-sulfonic acid can also be used as an auxiliary agent to optimize the production process and improve product quality. For example, in the preparation of some fine chemical products, the reaction rate can be adjusted, the physical properties of the product can be improved, and the production can be carried out efficiently and stably.
However, it is necessary to pay attention to the potential hazards of this product. During use and handling, strict safety procedures must be followed to avoid adverse effects on the human body and the environment. In this way, the latent risk can be minimized while enjoying the benefits of its use.

What are the environmental effects of 4-Aminoazobenzene-4 '-Sulfonic Acid?

4-Aminoazobenzene-4 '-sulfonic acid, the impact of this substance on the environment needs to be investigated in detail.
Its chemical properties may cause complex environmental effects. If dispersed into water bodies, due to certain solubility, or interfere with aquatic ecology. If aquatic organisms are exposed, they may cause physiological disorders. Such as fish, or affect their key physiological processes such as respiration and reproduction, causing population changes.
In the soil environment, or adsorbed by soil particles, changing soil physicochemical properties. Affect soil microbial activity, which in turn affects nutrient cycling and transformation in the soil, laying hidden dangers to the soil ecosystem where plants grow and root.
And it may have potential toxicity and persistence. If it is transmitted and enriched through the food chain, from lower organisms to higher organisms, humans are at the top of the food chain and may also be harmed by it. Long-term intake of food or water sources containing this substance may threaten health and cause various diseases.
And because its structure contains special groups, or under the action of environmental factors such as light and oxidation, complex chemical transformations occur, generating new pollutants, further exacerbating the complexity and uncertainty of environmental hazards. Therefore, the impact of 4-aminoazobenzene-4 '-sulfonic acid on the environment should be carefully monitored, and efforts should be made to reduce its harm and protect ecological safety.

What are the Physical and Chemical Properties of 4-Aminoazobenzene-4 '-Sulfonic Acid

4-Aminoazobenzene-4 '-sulfonic acid, the physical and chemical properties of this substance are as follows:
Under normal temperature, it is mostly solid or powdery, with a fine texture. The color is often light yellow or orange, and the color is more vivid.
When it comes to solubility, it has a certain solubility in water, but the solubility is not very high. In hot water, the solubility is slightly better than that of cold water. Due to the increase in temperature, the thermal movement of molecules intensifies, which makes the solute molecules more easily dispersed between solvent and water molecules. In common organic solvents, such as ethanol, ether, etc., the degree of solubility is relatively limited.
When it comes to stability, under normal environmental conditions, 4-aminoazobenzene-4 '-sulfonic acid can maintain a relatively stable structure without direct light, high temperature hot topic or special chemical reagents. However, when encountering strong acids and bases, its molecular structure is easily damaged, triggering chemical reactions. For example, in a strongly acidic environment, amino groups may protonate, causing molecular charge distribution to change; under strongly alkaline conditions, azo bonds may break, which in turn affects the stability of the entire molecule.
Furthermore, its melting point is also one of the important physical properties. After determination, there is a specific melting point value, which is the inherent characteristic of the substance and can be used as the basis for identifying the substance. When heated to the melting point temperature, the substance gradually changes from solid to liquid, realizing the phase transition.
In terms of spectral properties, it will show absorption peaks at specific wavelengths. In the ultraviolet-visible spectrum, due to the conjugate system in the molecule, that is, the conjugate structure formed by azo groups and benzene rings, it has characteristic absorption in the ultraviolet and visible regions, so that it can be qualitatively and quantitatively analyzed.
In addition, the 4-aminoazobenzene-4 '-sulfonic acid molecule contains an amino group and a sulfonic acid group, which give the substance a certain acidity and alkalinity. The sulfonic acid group is acidic and can ionize hydrogen ions in solution; while the amino group can accept protons under certain conditions and is alkaline. This acid-base property also affects its existence and chemical reactivity in different media.

What is the production method of 4-Aminoazobenzene-4 '-Sulfonic Acid?

The preparation method of 4-aminoazobenzene-4 '-sulfonic acid is synthesized by the ancient method of Doraization. At the beginning, the appropriate aromatic amine is used as the base, and the diazotization method is used to generate diazonium salts. This diazotization method is obtained at low temperature and in an acidic medium by the interaction of sodium nitrite and aromatic amines.
The obtained diazosalt is coupled with an aromatic compound with an active hydrogen atom. This aromatic hydrocarbon needs a suitable substituent to make the coupling reaction easy. During the reaction, the temperature, pH and other conditions are controlled to make the diazosalt and aromatic hydrocarbon accurately coupled to produce 4-aminoazobenzene intermediates.
Then, for the obtained intermediate, if you want to obtain 4-aminoazobenzene-4 '-sulfonic acid, you need to introduce a sulfonic acid group. The method of introducing a sulfonic acid group is often to use a sulfonating agent such as fuming sulfuric acid or chlorosulfonic acid to interact with the intermediate. In the sulfonation process, you should also pay attention to the reaction temperature, time and dosage of the sulfonating agent. If the temperature is too high, it may cause side reactions such as excessive sulfonation; if the temperature is too low, the reaction will be slow and the yield will not be high.
The steps of separation and purification after the sulfonation reaction is completed. Separation methods, or crystallization, extraction, etc. When crystallizing, control the concentration of the solution and the rate of temperature drop, etc., In extraction, a suitable extractant is selected to separate the target product and impurities. In the purification process, or by means of recrystallization, column chromatography, etc., impurities are removed to obtain pure 4-aminoazobenzene-4 '-sulfonic acid. In this way, it is the approximate preparation method for the preparation of 4-aminoazobenzene-4' -sulfonic acid in ancient times.

4-Aminoazobenzene-4 '-Sulfonic Acid What are the precautions during use

4-Aminoazobenzene-4 '-sulfonic acid, when using, there are several precautions that should not be ignored.
This substance has certain chemical activity, and it is first necessary to pay attention to its storage method. It must be placed in a dry, cool and well-ventilated place, away from fire and heat sources, to prevent unexpected changes. Endangering people and things around you due to heat or exposure to open flames, or the risk of burning.
Furthermore, when using, protective measures are indispensable. When wearing appropriate protective clothing, such as laboratory clothes, to protect the body; wear protective gloves to avoid direct contact with the skin, because it may be sensitizing and irritating to the skin. Facial protection is also key. You can wear protective glasses or a mask to prevent this object from accidentally splashing into the eyes and damaging the eyes.
The operation process must be rigorous. It should be carried out in a fume hood so that the volatile gas can be discharged in time to avoid the accumulation of harmful gases and endanger breathing. When taking it, take it according to the precise measurement method, not more or less, to ensure the accuracy of the experiment or production.
Also, after use, the residue should not be discarded at will. When following proper waste disposal procedures, store it in categories and hand it over to professional disposal institutions to avoid polluting the environment and harming the ecology.
In addition, the relevant operators must undergo professional training and be familiar with the nature, use and risk of this substance. In case of emergencies, they can respond calmly and take correct measures to reduce the harm. In this way, 4-aminoazobenzene-4 '-sulfonic acid can be used safely and effectively.