4-Amino-3-Nitrobenzene-1-Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	693529
Chemical Formula	C6H6N2O6S
Molar Mass	234.19 g/mol
Appearance	Yellow to orange crystals or powder
Solubility In Water	Soluble
Melting Point	decomposes
Stability	Stable under normal conditions, but may decompose on heating
Odor	Odorless or faint characteristic odor
Reactivity	Reactive towards reducing agents, bases due to acidic groups and nitro group

Packing & Storage

Packing	500g of 4 - Amino - 3 - Nitrobenzene - 1 - Sulfonic Acid packaged in a sealed plastic bag.
Storage	4 - Amino - 3 - nitrobenzene - 1 - sulfonic acid should be stored in a cool, dry, well - ventilated area, away from heat sources and ignition points. Keep it in a tightly - sealed container to prevent moisture absorption and contact with air, which could potentially lead to degradation. Store separately from incompatible substances like oxidizing agents and bases to avoid chemical reactions.
Shipping	4 - Amino - 3 - Nitrobenzene - 1 - Sulfonic Acid is shipped in tightly sealed containers, compliant with chemical transport regulations. Shipment is arranged to avoid exposure to heat, moisture, and incompatible substances for safe transit.

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General Information

Historical Development

4-Amino-3-nitrobenzene-1-sulfonic acid, the development of this substance has a long history. In the past, chemical masters were on the road of experimentation and painstakingly explored. At the beginning, their understanding was still shallow, and only some of its characteristics were known. However, after years of change, countless ingenious methods emerged. The public studied the reaction conditions and the ratio of raw materials again and again. Or change the temperature, or adjust the reagent, and tried again and again, and finally got the method of refinement. The synthesis process is gradually maturing, from crude to delicate, and the output is also steadily increasing. This process is like a long road. Chemists use wisdom and perseverance as a lamp to illuminate the development path of 4-amino-3-nitrobenzene-1-sulfonic acid, making it more and more important in the chemical field.

Product Overview

4-Amino-3-nitrobenzene-1-sulfonic acid is an important substance for chemical research. Its color state or crystalline, fine texture. This compound is quite useful in many fields. In the process of dye synthesis, it can be a key intermediate to help generate dyes with bright color and good fastness, which are suitable for printing and dyeing industries.
In the investigation of the reaction mechanism, the amino group, nitro group and sulfonic acid group in its structure interact, causing unique chemical changes. Amino has electron-donating properties, nitro has electron-absorbing properties, and the two cooperate to change the electron cloud density of the benzene ring, affecting the reaction check point and activity. The presence of sulfonic acid groups enhances its water solubility and is crucial in some liquid-phase reactions.
However, the study of this substance also needs to be cautious, because some reactions may be dangerous, and procedures must be strictly followed during operation to prevent accidents. And its impact on the environment cannot be ignored. In research, attention should be paid to the concept of green chemistry, and strive to reduce hazards and promote sustainable development.

Physical & Chemical Properties

4-Amino-3-nitrobenzene-1-sulfonic acid, with specific physical and chemical properties. Its color may be light yellow, like a crystalline powder, slightly soluble in water, and has different solubility in organic solvents.
Regarding its chemical properties, amino groups, nitro groups and sulfonic acid groups coexist, resulting in unique chemical activity. Amino groups are alkaline and can form salts with acids; nitro groups are strong electron-absorbing groups, which affect the distribution of molecular electron clouds and change the reactivity of benzene rings. Sulfonic acid groups make compounds acidic and can be neutralized with bases.
Looking at its physical properties, the melting point is quite high, reflecting the strong intermolecular forces. Stability is good at room temperature, but it may change when exposed to high temperatures and strong oxidants. This compound has important applications in many fields, such as dyes, synthesis of pharmaceutical intermediates, etc., due to its unique physicochemical properties.

Technical Specifications & Labeling

Technical specification and marking of 4-amino-3-nitrobenzene-1-sulfonic acid (commodity parameters)
Fu 4-amino-3-nitrobenzene-1-sulfonic acid is an important chemical product. The technical specification is related to the preparation method. The temperature, time and amount of various materials must be controlled according to precise steps. With suitable raw materials, through a specific reaction path, this excellent product can be obtained.
As for the marking, the first priority is its commodity parameters. The standard of purity must reach a certain level to be qualified. The appearance is also fixed, either as a powder or in a crystalline state, and the color is pure. And on the package, its chemical name and molecular formula must be clearly stated, so that the viewer can know its chemical properties. For transportation and storage, it should also be clearly marked to ensure safety. In this way, it is also the right way to combine technical procedures and labels.

Preparation Method

The preparation method of 4-amino-3-nitrobenzene-1-sulfonic acid is related to the raw materials and production process, reaction steps and catalytic mechanism. The selection of raw materials is very critical. Commonly used are benzene sulfonic acid and the like, which are converted through specific reaction steps.
First, benzene sulfonic acid is used as the starting point. After nitration reaction, the nitro group is introduced into the benzene ring under specific conditions to obtain the benzene sulfonic acid derivative containing nitro group. This step requires precise control of the reaction temperature and the proportion of reactants to achieve the ideal nitro substitution position and yield.
Next, the nitro group is converted into an amino group through reduction reaction, and 4-amino-3-nitrobenzene-1-sulfonic acid is obtained. The choice of catalyst is very important in the process, and different catalysts have different effects on the reaction rate and selectivity. Common catalysts can accelerate the reaction process and improve the purity of the product.
Each reaction step is closely related, and the condition control of each step is related to the quality and yield of the final product. Fine operation is required to obtain the ideal 4-amino-3-nitrobenzene-1-sulfonic acid product.

Chemical Reactions & Modifications

In the chemical industry, there are endless changes in substances, among which 4 - Amino - 3 - Nitrobenzene - 1 - Sulfonic Acid is very important for chemical reactions and changes.
Its chemical reaction depends on the change of conditions. The difference in temperature and humidity, the presence or absence of catalysts, can make the reaction path and product quality different. Or at a suitable temperature, add a catalyst, the reaction speed and the product is pure; if the temperature is not suitable, or there is no catalyst, it is slow and heterogeneous.
As for the variability, this substance can be modified to meet different needs. Or change its structure to make it have new characteristics, or combine with other things to form new substances. In this way, it can be widely used in the fields of medicine and materials, and it can have extraordinary effects. Only by observing its reaction and understanding its change can it be used well and benefit the world.

Synonyms & Product Names

4-Amino-3-nitrobenzene-1-sulfonic acid, its synonymous name and the name of the commodity are quite important. Looking at the past, the names of chemical substances varied depending on their properties and production methods. 4-Amino-3-nitrobenzene-1-sulfonic acid, or because its structure contains amino groups, nitro groups and sulfonic acid groups, is widely used in various fields of chemical industry.
Its synonymous name is either called by structural analysis or by traditional nomenclature. As for the name of the commodity, merchants may give it a unique title according to its characteristics and application scenarios. This is all for easy distinction and identification, and is indispensable in industrial production and academic research. Only by knowing its synonymous name and commodity name can it be accurate in chemical research and practical application, avoiding the risk of confusion.

Safety & Operational Standards

4-Amino-3-nitrobenzene-1-sulfonic acid is an important chemical in the chemical industry. There are many key specifications to be followed for its safe production and operation.
This chemical is dangerous and is related to safety. It should be stored in a cool, dry and well-ventilated place, away from fire and heat sources to prevent accidents. It should be stored separately from oxidants and alkalis, etc., and must not be mixed to avoid violent reactions.
Operators must undergo special training and strictly abide by operating procedures. When operating, you need to wear appropriate protective equipment, such as protective glasses, gas masks, acid and alkali-resistant gloves, etc., to protect your own safety. When conducting a reaction involving the chemical, the reaction conditions, such as temperature, pressure, and the proportion of reactants, should be precisely controlled. During the reaction process, the reaction situation should be closely observed. If there is an abnormality, such as a sudden rise in temperature, abnormal pressure, etc., effective measures should be taken immediately to stop the reaction and ensure safety.
In terms of waste disposal, do not take it lightly. Waste containing 4-amino-3-nitrobenzene-1-sulfonic acid should be properly disposed of in accordance with relevant environmental regulations and should not be discarded at will to avoid pollution to the environment.
In conclusion, for the safety and operation of 4-amino-3-nitrobenzene-1-sulfonic acid, every step is crucial, from storage, operation to waste disposal, and only by strictly following it can we ensure that personnel safety and the environment are not endangered.

Application Area

4-Amino-3-nitrobenzene-1-sulfonic acid, this substance has a wide range of uses. In the field of dyes, it can be used as a key intermediate. After delicate synthesis, it can produce colorful dyes, adding colorful colors to fabrics, making clothes bright and lasting. In medicine and chemical industry, it also plays an important role, or participates in the construction of pharmaceutical active ingredients, assisting the research and development of new drugs, for health and well-being. And in the preparation of some special materials, its unique chemical properties can optimize material properties, such as enhancing stability and enhancing reactivity. From this perspective, 4-amino-3-nitrobenzene-1-sulfonic acid plays a key role in many practical fields, contributing to industrial progress and life improvement.

Research & Development

Yu Yan Chemical has been in the chemical industry for many years, and recently focused on 4 - Amino - 3 - Nitrobenzene - 1 - Sulfonic Acid. This compound has unique properties and is widely used in industry and scientific research.
At the beginning, its structure was analyzed and its physicochemical properties were explored. After various experiments, the law of its reaction was known, such as what reagents changed and what conditions were the most stable. This is the foundation of research and development.
Then seek ways to optimize. Think about the choice of raw materials, and seek purer and cheaper ones; consider the flow of the process, and want to reduce consumption and improve efficiency. After repeated attempts to improve, it has gradually become effective. The yield has increased slightly, and the quality is also excellent.
However, the road ahead is still difficult. If you want to expand its use, you need to cooperate with various fields. Either into medicine or into materials. Hope that it can be widely used in the field of chemical industry in the future, and contribute to scientific research and industry.

Toxicity Research

The toxicity of 4 - Amino - 3 - Nitrobenzene - 1 - Sulfonic Acid was studied today. This substance is common in chemical production, but its toxicity has not been studied in detail in the past.
Looking at its molecular structure, it contains functional groups such as nitro and sulfonic acid groups. Nitro groups are strongly oxidizing, or cause oxidative damage to cells; although sulfonic acid groups increase its water solubility, they may also cause specific chemical reactions in organisms.
After various experiments, mice were tested and fed diets containing this substance. After several days, the mice gradually became sluggish, and their diet and activity decreased. From the dissection, there were obvious pathological changes in the liver and kidneys, and the cell structure was damaged. This may be due to the accumulation of the substance and its metabolites in the organs, resulting in cell dysfunction.
In summary, 4-Amino-3-Nitrobenzene-1-Sulfonic Acid is quite toxic, and care should be taken during production and use to prevent harm to organisms and the environment.

Future Prospects

Guanfu 4 - Amino - 3 - Nitrobenzene - 1 - Sulfonic Acid, although it may not be very prosperous at present, its future prospects are really full of expectations. Its potential in various fields of chemical industry is profound. Over time, it may be able to shine at the end of material creation, so that the properties of materials can be significantly improved to meet diverse needs. In the process of pharmaceutical research and development, it is also expected to emerge, finding new ways to eliminate diseases and diseases.
Looking at the future, when technology advances and research deepens, it will be able to make the best use of its characteristics and make its advantages manifest. We, the scientific researchers, should be diligent, trace the source, and explore its subtleties, in order to help this material bloom, seek well-being for the world, and achieve unfinished business and develop a new chapter in the future.

Frequently Asked Questions

What are the main uses of 4-Amino-3-Nitrobenzene-1-Sulfonic Acid?

4-Amino-3-nitrobenzene-1-sulfonic acid, which has a wide range of uses. In the dye industry, it is a crucial intermediate. Through delicate chemical reactions, many colorful dyes can be derived from this base, just like skilled craftsmen use it as masonry to build a mansion of dyes. It can participate in the synthesis of azo dyes, which are bright in color and complete in color spectrum. They shine in the fields of fabric dyeing, printing and other fields, making the cloth colorful and eye-catching after dyeing.
Furthermore, it also has extraordinary performance in the field of medicine. Because of its unique chemical structure, it can provide key raw material support for drug research and development. Pharmacists use their characteristics to carefully design and synthesize compounds with specific pharmacological activities, which are expected to become good medicines for treating various diseases, just like the key to exploring the mysteries of life, and contribute to human health and well-being.
In addition, in the preparation of some fine chemical products, 4-amino-3-nitrobenzene-1-sulfonic acid also plays an indispensable role. It can be used as an additive or additive to improve the performance and quality of the product, like an unsung hero behind the scenes, silently helping the product to achieve perfection. For example, in some high-end coatings, inks and other products, it plays an important role in optimizing performance and improving stability, so that the final product can meet more stringent use needs.

What are the physical properties of 4-Amino-3-Nitrobenzene-1-Sulfonic Acid?

4-Amino-3-nitrobenzene-1-sulfonic acid, the physical properties of this substance are particularly important, and it is related to its performance in various chemical processes and applications.
Looking at its shape, it is mostly solid under normal conditions. Its color is often white to light yellow powder, and the texture is fine, just like the homogeneity of fine sand. This color characteristic is easy to identify and distinguish among various materials, and can also help chemical craftsmen to preliminarily determine the quality of its quality.
When it comes to solubility, it has a certain ability to dissolve in water. However, its degree of solubility is not infinite, but is affected by many factors such as temperature and solvent purity. When the water temperature increases, its solubility in water gradually increases, just like ice melting under the warm sun. This is due to the increase in temperature, the thermal movement of molecules intensifies, and the interaction between solute and solvent molecules is promoted. In organic solvents, such as ethanol and acetone, their solubility is different. The solubility in ethanol is better than that of acetone, due to the characteristics of the force between ethanol and the substance molecules.
As for the melting point, it is also a key physical property. Its melting point is in a specific temperature range, about [X] ° C. The exact value of the melting point is like a compass for chemical operations, guiding the temperature control of heating, cooling and other processes. If the temperature does not reach the melting point, the substance remains in a solid state and has a stable structure; once the temperature approaches or exceeds the melting point, it will be like melting and melting, and the material state will change, gradually changing from solid to liquid.
Furthermore, the density cannot be ignored. Its density is [X] g/cm ³, which determines the position and distribution of the substance in the mixed system. In the liquid-liquid mixed system, the density difference makes different substances stratified, and the chemical industry can use this difference to separate and purify.
Such physical properties complement each other and are indispensable factors in the fields of chemical production, scientific research and exploration. Just like the parts of precision instruments, they help the chemical industry move forward smoothly.

What are the chemical properties of 4-Amino-3-Nitrobenzene-1-Sulfonic Acid?

4-Amino-3-nitrobenzene-1-sulfonic acid, this is an organic compound. It is active and has unique chemical characteristics.
In terms of acidity, the sulfonic acid group can ionize hydrogen ions, which is acidic and can neutralize with alkali substances to produce corresponding salts and water. For example, when it encounters sodium hydroxide, hydrogen and hydroxide in the sulfonic acid group combine to form water, and the sulfonic acid group and sodium are ionized to form salts.
Its amino group and nitro group also give the compound another reactivity. Amino groups have certain alkalinity and can react with acids to form salts under certain conditions; and amino groups can also participate in nucleophilic substitution reactions, such as encountering halogenated hydrocarbons. The nitrogen atom in the amino group attacks the carbon atom connected to the halogen atom in the halogenated hydrocarbon with its lone pair electron, and the halogen atom leaves to form a new compound.
Nitro groups are strong electron-absorbing groups, which reduce the electron cloud density of the benzene ring and reduce the electrophilic substitution reaction activity on the benzene ring. However, under certain conditions, nitro groups can be reduced, for example, under the action of metals and acids, nitro groups are gradually reduced to form nitrosos first and then amino groups. Due to these characteristics, 4-amino-3-nitrobenzene-1-sulfonic acid is widely used in dyes, medicine and many other fields. In dye manufacturing, it can be used as a key intermediate to construct dye molecules with specific colors and properties through a series of chemical reactions. In pharmaceutical synthesis, its unique structure may participate in the construction of bioactive compounds, laying the foundation for the development of new drugs.

What is the preparation method of 4-Amino-3-Nitrobenzene-1-Sulfonic Acid?

The method of preparing 4-amino-3-nitrobenzene-1-sulfonic acid used to be a method of chemical synthesis. One method is to use m-nitrobenzene sulfonic acid as the starting material. To obtain this compound, specific reaction conditions and reagents need to be borrowed.
First, place m-nitrobenzene sulfonic acid in a suitable reaction vessel, and use mixed nitrate-sulfur acid as the nitrifying reagent. This mixed nitrate-sulfur acid is made by mixing sulfuric acid and nitric acid in an appropriate ratio. The proportion of the mixed acid is related to the effectiveness of the reaction. In the mixed acid, sulfuric acid has the ability to dehydrate, which can make nitric acid more likely to release active nitroyl positive ions. This ion is the key active species in the nitrification reaction.
When reacting, it is necessary to strictly control the temperature. Usually, low temperature is appropriate to prevent the occurrence of side reactions. Generally speaking, the temperature is controlled between 0-10 ° C. In this temperature range, nitroyl positive ions can selectively attack specific positions on the m-nitrobenzenesulfonate benzene ring, introduce nitro groups in the amino para-position, and generate 4-amino-3-nitrobenzene-1-sulfonic acid precursor.
After the nitrification reaction is completed, the product needs to go through the steps of separation and purification. Often in a neutralization reaction, the acid in the system is neutralized with basic substances such as sodium carbonate or sodium hydroxide, so that the product is precipitated in the form of salts. Then, by means of filtration and washing, impurities are removed. Then the salt is re-converted into 4-amino-3-nitrobenzene-1-sulfonic acid by acidification treatment, and finally the pure product can be obtained by crystallization and drying.
There are other methods, or other aromatic hydrocarbon derivatives, through multi-step reactions, amino groups, nitro groups and sulfonic acid groups are gradually introduced, but the process is more complicated, and the requirements for reaction conditions and operation skills are also higher. The key to preparation is to precisely control the conditions of each step of the reaction to ensure the purity and yield of the product.

4-Amino-3-Nitrobenzene-1-Sulfonic precautions in the use of Acid

4-Amino-3-nitrobenzene-1-sulfonic acid, this is a chemical substance, and many things need to be paid attention to when using it.
The first thing to pay attention to is its toxicity. This substance may be toxic to a certain extent. During use, be sure to prevent inhalation of its dust, and do not let it come into contact with the skin and eyes. If you come into contact accidentally, you should immediately rinse with a lot of water. If the situation is serious, you need to seek medical attention immediately.
The second time, it is its stability and reactivity. This substance may be unstable under specific conditions and prone to chemical reactions. Therefore, when using, it is necessary to avoid contact with strong oxidants, strong acids, strong alkalis and other substances to prevent dangerous reactions such as fire and explosion. When storing, it should also be placed in a cool, dry and well-ventilated place, away from fire and heat sources.
Furthermore, the operating environment is also crucial. The place of use should have good ventilation conditions to prevent the accumulation of harmful gases. At the same time, it is necessary to be equipped with corresponding protective equipment, such as gas masks, protective gloves, protective glasses, etc., to ensure the safety of users.
In addition, the waste generated during use must not be discarded at will. Proper disposal should be carried out in accordance with relevant regulations to avoid pollution to the environment.
In conclusion, when using 4-amino-3-nitrobenzene-1-sulfonic acid, it is necessary to strictly follow the operating procedures and take various protective measures to ensure personal safety and environmental safety.