2-Nitroaniline-4-Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	131605
Chemical Formula	C6H6N2O5S
Molecular Weight	218.19
Appearance	Yellow - brown crystals or powder
Solubility In Water	Slightly soluble
Solubility In Organic Solvents	Insoluble in most common organic solvents
Melting Point	Decomposes
Odor	Odorless
Ph	Acidic in aqueous solution
Stability	Stable under normal conditions
Hazard Class	Harmful if swallowed, inhaled or in contact with skin

Packing & Storage

Packing	25 - kg bags of 2 - Nitroaniline - 4 - Sulfonic Acid, well - sealed for chemical protection.
Storage	2 - Nitroaniline - 4 - Sulfonic Acid should be stored in a cool, dry, well - ventilated area, away from heat sources and open flames. Keep it in a tightly closed container to prevent moisture absorption and exposure to air. Store separately from incompatible substances like oxidizing agents and bases to avoid potential chemical reactions.
Shipping	2 - Nitroaniline - 4 - Sulfonic Acid is shipped in well - sealed containers. These are carefully packed to prevent spills and ensure safety during transit, following strict regulations for hazardous chemical shipping.

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General Information

Historical Development

2 - Nitroaniline - 4 - Sulfonic Acid is an important product of chemical industry. Back in the past, in the process of chemical development, the development process of this product has been tortuous and significant.
In the initial stage, chemists dedicated themselves to exploring new compounds. After repeated experiments, they gradually touched on the preparation clues of 2 - Nitroaniline - 4 - Sulfonic Acid. Early attempts were difficult, and progress was slow due to technical and cognitive limitations at that time.
However, science and technology are gradually advancing, and many innovative methods have emerged. Researchers continue to study the reaction conditions, raw material ratio, etc., to optimize the preparation process. With the passage of time, the preparation efficiency and product purity have been significantly improved, enabling 2-Nitroaniline-4-Sulfonic Acid to be more widely used in chemical, pharmaceutical and other fields, with far-reaching impact on human life.

Product Overview

2 - Nitroaniline - 4 - Sulfonic Acid is an important chemical product. Its color may be light yellow, and it is like a crystalline powder. This product has a wide range of uses in the chemical industry and is often a key raw material for dye synthesis. It can be carefully prepared through a specific chemical reaction path. Its molecular structure is unique, containing key groups such as nitro and sulfonic acid groups, which endows the product with many special chemical properties. With this unique structure and properties, it can effectively participate in the reaction during the dye manufacturing process and help dye a brilliant and lasting color. And when storing, pay attention to environmental conditions, and it should be placed in a dry and cool place to prevent its deterioration and affect the subsequent use efficiency to ensure that it plays a stable and important role in the chemical production process.

Physical & Chemical Properties

2 - Nitroaniline - 4 - Sulfonic Acid is an important chemical substance. Its physical properties are unique, with a light yellow color and a crystalline powder. It is stable at room temperature and has a specific melting point. The melting point is about [X] ° C and the boiling point is near [X] ° C. This property helps to separate and purify.
Its chemical properties are active, and it has significant reactivity due to the presence of nitro groups and sulfonic acid groups. Nitro groups change the electron cloud density of the benzene ring, which is easy to cause nucleophilic substitution. Sulfonic acid groups are acidic and can react with bases to form salts.
This substance has a wide range of uses in the field of organic synthesis and can be used as a dye intermediate. With its reaction properties, a variety of brightly colored dyes can be synthesized. It is also used in pharmaceutical chemistry to provide key raw materials for the preparation of specific drugs, and to achieve specific structures and functions of drugs based on their unique physical and chemical properties.

Technical Specifications & Labeling

2-Nitroaniline-4-sulfonic acid process specification and identification (product parameters)
Fu 2-nitroaniline-4-sulfonic acid, the choice of the first raw material for the process specification. It is necessary to start with pure aniline, according to the exact ratio, blend with nitric acid and sulfuric acid, and control the temperature to be appropriate, so that the nitrosulfonic acid can progress in an orderly manner. In the meantime, the degree of temperature and time are all related to the purity of the product.
As for the identification, when the name is "2-nitroaniline-4-sulfonic acid", mark its chemical formula, and list the parameters of molecular weight, melting point, and boiling point in detail. The color of the appearance, or light yellow powder, or crystals, should also be clearly indicated. And its danger should be noted. In a prominent part of the packaging, the police should protect it to prevent it from hurting the body and dyeing the environment. In this way, the craftsmanship is strict and the logo is detailed to ensure the goodness of this product.

Preparation Method

The method of making 2-Nitroaniline-4-Sulfonic Acid is related to the raw materials and production process, reaction steps and catalytic mechanism. First, take an appropriate amount of aniline as raw material, use sulfuric acid as a sulfonating agent in a specific container, control the temperature moderately, make the aniline sulfonate, and obtain p-aminobenzene sulfonic acid.
Then, the mixed acid of p-aminobenzene sulfonic acid with concentrated nitric acid and concentrated sulfuric acid is reacted. This step requires careful temperature control to prevent side reactions. Nitric acid is used as a nitrating agent to nitrate p-aminobenzene sulfonic acid, and then 2-Nitroaniline-4-Sulfonic Acid is obtained.
After the reaction is completed, the product is purified through neutralization, filtration, crystallization and other As for the catalytic mechanism, when sulfuric acid is sulfonated, it helps to activate aniline, reduces the reaction energy barrier, and promotes the sulfonation reaction. When mixed acid is nitrified, concentrated sulfuric acid also acts as a catalyst and dehydration, making the reaction smooth and efficient. In this way, a relatively pure 2-Nitroaniline-4-Sulfonic Acid can be obtained.

Chemical Reactions & Modifications

Nowadays, there is a product called 2-Nitroaniline-4-Sulfonic Acid. In chemical research, the discussion of its chemical reaction and modification is crucial. The reaction of this compound is related to many chemical processes. To obtain a good effect, it is necessary to carefully observe the reaction conditions and the proportion of reactants.
The improvement of the chemical reaction is the key to optimizing its performance. You can adjust the reaction temperature, pressure, or add a specific catalyst to change the reaction path and promote it to form a better product. And looking at its structure, you can find ways to chemically modify it to increase its stability and activity.
Our chemical researchers should study the chemical reaction and improvement of 2-Nitroaniline-4-Sulfonic Acid with diligence, explore its subtlety, and contribute to the development of chemistry and material optimization, in order to obtain more practical results and benefit the world.

Synonyms & Product Names

2 - Nitroaniline - 4 - Sulfonic Acid, also known as nitroaniline - 4 - sulfonic acid. There are many names, such as 4 - sulfonic acid - 2 - nitroaniline, etc. In the chemical industry, its trade name is also used. The name refers to the same thing. This compound is specific and has many uses in dyes, chemical synthesis, etc. Its name and trade name have different expressions, but they all refer to this thing. Those who work with it need to be familiar with each of them to avoid confusion and use it accurately in research and production.

Safety & Operational Standards

2 - Nitroaniline - 4 - Sulfonic Acid is safe to operate
If you want to use 2 - Nitroaniline - 4 - Sulfonic Acid, keep it safe and careful, and it is essential.
First talk about the method of its storage. It should be placed in a place where it is dry and well-connected, and it is a fire and a source. If it is exposed to high heat, or in case of open fire, it may cause danger. Hidden utensils must be kept in good condition to prevent them from being exposed. Outside, it does not pollute the environment, and it is easy to cause trouble.
Operating it, keep it safe. Those who work hard must wear protective clothing, eyewear, and protective shields, so as not to connect them to the body. The journey of the road, so that the harmful air can be quickly dispersed outside, not gathered in the room.
And if it is unfortunate to be exposed, don't be impatient. First detect the source of fire, and prohibit people from approaching. For small quantities, cover them with sand, dry lime, or ash, put them up, and place them in a container with water, and place them properly. For large amounts of water, block and collect them, use a pump to use the equipment, and then deal with them. Don't let them flow.
Furthermore, the damage of this thing should not be ignored. It is necessary to follow the safety of the chemical products, properly pack them, and add them. On the way, to avoid shocks and high temperatures, those who are in charge are aware of their nature, and they are in danger. In case of emergency, they can do it.
, 2 - Nitroaniline - 4 - Sulfonic Acid is an essential product of chemical products, and they are safe to operate, and they are essential. All those who do it are in compliance, so as to avoid problems and ensure people's safety and property.

Application Area

2-Nitroaniline-4-sulfonic acid is also widely used. In the dye industry, it can be used as a chromogen to make the color of the dye bright and firm, and all kinds of textures depend on it to enhance their color. In the pharmaceutical system, it is also a key material, involving the synthesis of a variety of drugs, related to the healing of diseases. And in chemical research, it is a key intermediate, assisting students to explore the mystery of chemistry and expand the unknown. Its ability to show work in various fields is really a treasure of chemical industry. Therefore, 2-nitroaniline-4-sulfonic acid has extraordinary value in the fields of industry, medicine, and academia, and cannot be ignored.

Research & Development

With the rise of modern chemistry, all kinds of substances are the object of research. In this case, the research and development of 2-Nitroaniline-4-Sulfonic Acid is worthy of considerable attention.
At the beginning of the study, scholars investigated its physicochemical properties in detail. Study its structure, explore its reaction rules, and hope to understand its role in various chemical processes. After years of study, its synthesis method has gradually improved. At the beginning, the synthesis technique was complicated and ineffective, but after being improved by many experts, new methods came out one after another, and the yield was improved.
As for development, this substance is gradually showing its ability in the industrial field. In the production of dyes, it adds its color-enhancing effect; in pharmaceutical research and development, it may have potential use. However, its development has also encountered various problems, such as environmental impact, cost control. Scholars have tried their best to find solutions. With scientific wisdom, break the barrier of development, so that 2-Nitroaniline-4-Sulfonic Acid can develop its strengths in more fields, promote chemical progress, and benefit the world.

Toxicity Research

The nature of taste and smell is related to use and safety. Jin Yan 2 - Nitroaniline - 4 - Sulfonic Acid This substance, the study of its toxicity is crucial.
This substance is toxic, or hurts the body. Touch it, it may damage the skin, enter the body, it will harm the viscera. Looking at the structure of its molecules, nitro and sulfonic acid groups coexist, or are the source of toxicity. Nitro is active and easily disturbs the biochemical sequence; although sulfonic acid groups are often hydrophilic, in this substance, it may help the spread of toxicity.
In the context of experiments, test with white mice. Feed a small amount, a few days, the white rat is tired and lazy, and the body decays after eating less. If you look at it, the organs are ill, the liver is damaged and the kidneys are weak.
Therefore, the toxicity of this product is studied, and you must be careful to prevent it from harming the unborn, the safety of the survivors, and the right way to promote chemical industry.

Future Prospects

Guanfu 2 - Nitroaniline - 4 - Sulfonic Acid This product, today's researchers, all hope that it will have outstanding development in the future. Its characteristics are unique, and it may be able to shine in many fields. The field of chemical industry, or the foundation of new materials, with its characteristics, can help materials with unusual properties, such as enhancing corrosion and wear resistance, and is used in equipment and construction. In medicine, it is also hoped that it may become a key element in the development of new drugs, adding a new way for the treatment and treatment of diseases. Although the current research is not complete, everyone believes that with time, it will be able to overcome difficulties and develop its hidden capabilities. In the future, it can be expected to emerge in various industries, be used by the world, and benefit people, in recognition of its extraordinary value, and become a powerful basis for future technological progress and life improvement.

Frequently Asked Questions

What are the main uses of 2-Nitroaniline-4-Sulfonic Acid?

2-Nitroaniline-4-sulfonic acid has a wide range of uses. In the dye industry, this is a crucial intermediate. Through delicate chemical reactions, many colorful dyes can be derived, such as azo dyes. These dyes are bright in color and have good fastness. They are widely used in fabric printing and dyeing. They can give fabrics a colorful color and will not fade for a long time, adding color to the textile industry.
Furthermore, in the field of medicinal chemistry, 2-nitroaniline-4-sulfonic acid also plays a role that cannot be ignored. It can provide a key structural unit for the synthesis of specific drugs. With its unique chemical structure, through a series of complex synthesis steps, it may be able to prepare drugs that have curative effects on certain diseases and help human health.
In the field of organic synthetic chemistry, this compound is often used as a starting material or an important intermediate. Due to the nitro, amino and sulfonic acid groups contained in its molecular structure, it can be skillfully chemically converted to construct various complex organic compounds, expanding the boundaries of organic synthesis and laying the foundation for the development of new organic materials.
In addition, in some specific analytical chemical methods, 2-nitroaniline-4-sulfonic acid may act as an indicator. Its chemical properties will show obvious differences due to changes in the environment, which can keenly indicate the process of chemical reactions or the presence or absence of specific substances, providing a convenient and effective means for analytical work.
In short, 2-nitroaniline-4-sulfonic acid, with its unique chemical properties, plays an indispensable role in many fields, promoting the progress and development of related industries.

What are the physical properties of 2-Nitroaniline-4-Sulfonic Acid?

For 2-nitroaniline-4-sulfonic acid, its physical properties are important. This compound is solid, and its color is often as light as brown powder. Its melting properties are characteristic, but the melting properties vary slightly due to factors such as the degree of resistance, mostly due to a certain degree of solubility.
In terms of solubility, its solubility in water is limited, because the molecule contains both aqueous sulfonic acid groups and hydrophobic nitro-aniline groups, which limits its solubility in water. In solutions such as ethanol and acetone, the solubility is not high, which is due to its special molecular properties.
Furthermore, its density is also a matter of physical properties. Density reflects the quantity of its position, and this property refers to the quantity of materials in the phase engineering process, mixing and other operations.
In addition, the crystal form of 2-nitroaniline-4-sulfonic acid also affects its physical properties. Different crystal forms may have differences in external properties and qualitative properties. And the particle size distribution of the powder, its fluidity and dispersibility also play a role. If the particle size is small, the fluidity may be poor, but the dispersibility may be better; if the particle size is slightly larger, the opposite is true. In addition, the general physical properties of this compound are indispensable for its synthesis, extraction, and application.

2-Nitroaniline-4-Sulfonic the chemical properties of Acid

2-Nitroaniline-4-sulfonic acid, this is an organic compound with unique chemical properties. Its properties are usually in solid form and are relatively stable at room temperature and pressure.
When it comes to solubility, it has a certain solubility in water, but the specific solubility is affected by factors such as temperature. Generally speaking, when the temperature increases, the solubility may increase. This property is crucial in many chemical processes and experiments, related to its separation, purification and reaction process.
Its acidity cannot be ignored. The sulfonic acid group gives the compound acidic properties, which can ionize hydrogen ions in solution and exhibit acid properties. This acidity can be used for specific acid-base reactions, and is often used in the field of organic synthesis to adjust the reaction environment and promote the occurrence of certain reactions.
Nitro and amino groups in 2-nitroaniline-4-sulfonic acid are also important functional groups. Nitro has strong electron absorption, which has a great impact on the electron cloud distribution of the compound, thereby changing its chemical activity and reaction check point. Amino groups have certain nucleophilic properties and can participate in a variety of nucleophilic substitution reactions. The existence of these two types of functional groups makes the compound an important intermediate in organic synthesis, capable of constructing more complex organic molecular structures through various chemical reactions.
In terms of stability, although it is relatively stable at room temperature and pressure, there are still certain risks in case of hot topics, open flames or contact with strong oxidants. During storage and use, corresponding safety procedures should be followed to prevent accidents.
2-nitroaniline-4-sulfonic acid plays an important role in industrial fields such as dyes, medicines and pesticides due to its unique chemical properties, providing a key chemical raw material basis for the development of related industries.

What is the production method of 2-Nitroaniline-4-Sulfonic Acid?

There are many ways to prepare 2-nitroaniline-4-sulfonic acid in ancient times. Aniline is often used as the starting material, and it is formed by sulfonation and nitration.
The first word is sulfonation. In the past, concentrated sulfuric acid was used as the sulfonating agent. In an appropriate reaction vessel, aniline and concentrated sulfuric acid are placed to control the temperature and reaction time. Generally, in a specific temperature range, such as when it is moderately warm, aniline interacts with concentrated sulfuric acid, and the sulfonic acid group (SOH) replaces the hydrogen atom on the aniline aniline ring to form an intermediate product of aniline sulfonic acid. This step requires fine control of conditions. If the temperature is too high or too low, and the reaction time is too long or too short, it may affect the yield and purity of the product.
Nitrification is followed by the introduction of nitro groups (-NO 2) based on the sulfonation products. The commonly used nitrification reagent is mixed acid, that is, a mixture of concentrated sulfuric acid and concentrated nitric acid. Under low temperature and strict temperature control conditions, the mixed acid is slowly added to the system containing the intermediate product of aniline sulfonic acid. Because the introduction of nitro groups is dangerous and the reaction conditions are strict, slightly higher temperatures may cause side reactions to occur, forming unnecessary isomers or other by-products, so the operation must be cautious. After nitrification, the nitro group successfully replaced the hydrogen atom at a specific position on the benzene ring, and finally obtained 2-nitroaniline-4-sulfonic acid.
In addition, there are other variants, either slightly adjusting the raw materials or optimizing the reaction conditions. However, the basic path of sulfonation and nitrification is inseparable, aiming to improve the yield and purity of the product, and make the operation safer and more efficient.

2-Nitroaniline-4-Sulfonic Acid in storage and transportation

2-Nitroaniline-4-sulfonic acid is a chemical substance. When storing and transporting, pay attention to many matters.
First storage, this substance should be stored in a cool, dry and well-ventilated place. Because of the cool environment, it can avoid its changes due to excessive temperature, causing changes in properties, or causing danger. Dry places can prevent it from being damp, and the moisture can often cause chemical reactions to be disordered and damage its quality. Well-ventilated, it can dissipate harmful gases that may be generated and keep the storage environment safe.
Furthermore, keep away from fire and heat sources. Both of these can cause the substance to heat up, which in turn triggers chemical reactions, and even causes fires and explosions, so be sure to stay away. And should be stored separately from oxidants, reducing agents, acids, alkalis, etc., and cannot be mixed. Because of its active chemical properties, it encounters with the above-mentioned substances, or reacts violently, endangering safety.
As for transportation, it should not be ignored. The packaging must be complete and firm to ensure that there is no leakage during transportation. During transportation, it should be strictly driven according to the specified route, and it should not be changed at will to avoid increasing danger. Transportation vehicles should be equipped with corresponding varieties and quantities of fire-fighting equipment and leakage emergency treatment equipment to prevent accidents. When loading and unloading, it should be handled lightly to avoid collision, friction, and damage to the package and cause material leakage.
All of these are important for the storage and transportation of 2-nitroaniline-4-sulfonic acid, and should not be slack to ensure safety.