O-Amino-Benzene Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	408983
Chemical Formula	C6H7NO3S
Molar Mass	173.19 g/mol
Appearance	White to light - yellow crystals or powder
Solubility In Water	Soluble in water
Melting Point	132 - 135 °C
Boiling Point	Decomposes before boiling
Pka Value	pKa1 = 2.86, pKa2 = 10.62
Density	1.51 g/cm³
Odor	Odorless

Packing & Storage

Packing	O - Amino - Benzene Sulfonic Acid: Packed in 25 - kg bags for convenient handling.
Storage	O - Amino - Benzene Sulfonic Acid should be stored in a cool, dry, well - ventilated area, away from heat sources and direct sunlight. Keep it in a tightly - sealed container to prevent moisture absorption and contact with air, which could potentially lead to decomposition or degradation. Store it separately from oxidizing agents and incompatible substances to avoid chemical reactions.
Shipping	O - Amino - Benzene Sulfonic Acid should be shipped in well - sealed containers, protected from moisture and heat. Follow all relevant regulations for transporting chemicals, ensuring proper labeling and handling to prevent spills and ensure safety.

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General Information

Historical Development

The industry of chemical industry is changing with each passing day, and all kinds of products are related to people's livelihood. In today's O-Amino-Benzene Sulfonic Acid, there are traces to follow in the past.
At the beginning, the research of chemistry was still shallow, and it was quite difficult to obtain this O-Amino-Benzene Sulfonic Acid. Craftsmen and scholars, after years of hard work, have been studying and seeking. After many trials, they have achieved success. Its production method has gradually become more refined, from simple to complex, from coarse to fine.
At that time, although resources were scarce and equipment was simple, everyone was determined. Or in a shabby room, put all kinds of bottles and dishes, carefully reconciled; or on a book, record the data in detail, and repeatedly investigate. With the passage of time and the advancement of skills, the output of O-Amino-Benzene Sulfonic Acid has become increasingly abundant, and its application has also become wider. It has its uses in dyeing, weaving, medicine and other industries, contributing to the development of the world and making remarkable achievements.

Product Overview

"Overview of O-Aminobenzenesulfonic Acid Products"
O-Aminobenzenesulfonic Acid is one of the organic compounds. Its color is often white to light gray crystalline, with specific physical and chemical properties. In the chemical field, it has a wide range of uses.
This product can be used as a dye intermediate to help generate and stabilize the color of dyes. It also plays a key role in the synthesis of medicine and provides important raw materials for the preparation of many drugs.
Its preparation method is through specific chemical reactions. Using benzene as the starting material, it is carefully prepared through sulfonation, nitrification, reduction and other steps.
However, when preparing, it is necessary to strictly control the reaction conditions, such as temperature, pressure, and the proportion of reactants. A slight difference will affect the purity and yield of the product. And the production process also needs to pay attention to environmental protection and properly handle waste to ensure environmental safety.

Physical & Chemical Properties

Today there is a substance called O-Amino-Benzene Sulfonic Acid. Its physical and chemical properties are particularly important and cannot be ignored.
Viewing its shape, at room temperature, it is usually a solid state, with a color as white as snow or slightly light. Its texture is fine and it feels slightly dry to the touch. In terms of its solubility, it has a certain degree of solubility in water, and can merge with water molecules to form a uniform solution. This property is crucial in many reactions.
In terms of self-chemical properties, this substance is active. Its amino group and sulfonic acid group are both active check points and can react with many reagents. When exposed to alkali, sulfonic acid groups can interact with it to form salts, which shows its acidic properties. And amino groups can also participate in many nucleophilic reactions, making this substance widely used in the field of organic synthesis. It can be used as a raw material to prepare a variety of important compounds, making great contributions to chemical research and industrial production.

Technical Specifications & Labeling

O - Amino - Benzene Sulfonic Acid is also a transformative thing. The quality of its manufacturing technology is essential. If you want to obtain its excellent products, you must follow the quality of the product.
For those who are skilled, the quality of the raw materials is refined, and the quality of the reverse parts is high. The quality, strength, and quality are all fixed. If the reverse is high, or it needs to be high in a certain degree, the strength cannot be ignored, so that the reverse is profitable and efficient.
As for the quality of the product (commodity quality), the name, quality, content, etc., it is clear. The name is established as O - Amino - Benzene Sulfonic Acid, and its specifications, such as particle size, external quality, etc., are also clear. The content is more complex, and it must be determined by the method of precision. Only when it is completed can the qualified products be used in the world.

Preparation Method

The key to the preparation of p-aminobenzenesulfonic acid is the raw material and the production process. Take aniline as the initial raw material and react with concentrated sulfuric acid. First, the aniline is slowly injected into the preheated concentrated sulfuric acid. This process needs to be handled with caution to prevent accidents. At the beginning of the reaction, aniline sulfate is formed, and then it is baked at high temperature to achieve molecular rearrangement and converted into p-aminobenzenesulfonic acid.
The reaction steps are first to neutralize aniline and sulfuric acid to form a salt, and then to promote its rearrangement by baking. As for the catalytic mechanism, sulfuric acid is not only a reactant at high temperature, but also has a catalytic effect, which promotes the rearrangement reaction to occur smoothly. In this way, through this series of steps, p-aminobenzenesulfonic

Chemical Reactions & Modifications

The chemical reaction of O-Amino-Benzene Sulfonic Acid is related to many reaction pathways or electrophilic substitution. On the benzene ring, there are different reactivity at specific positions. The positioning effect of sulfonic acid groups and amino groups interacts, resulting in different reaction products.
In terms of its chemical properties, amino groups have a certain alkalinity and can form salts with acids; sulfonic acid groups are acidic and can participate in acid-base neutralization. And the two have a significant impact on the distribution of electron clouds in the benzene ring, causing the electron cloud density and reactivity of the benzene ring to change. After considering various factors, seeking an optimization method, adjusting the reaction conditions, such as temperature, pH, catalyst, etc., it is possible to improve its chemical reaction, improve its chemical properties, and obtain better products, contributing to the chemical industry.

Synonyms & Product Names

O-aminobenzenesulfonic acid is also a chemical thing. Its synonyms are quite complex. In the past, Fang's family explored, and gradually became clear about its properties and names.
This substance or o-aminobenzenesulfonic acid is also called 2-aminobenzenesulfonic acid. Businesses are in the city, and the names they label have their own formulas. Or from the vulgar name, or according to the scientific name, I want to let the public know its quality.
The books of the past, although they did not describe this thing directly, the principles of chemistry are consistent from ancient and modern times. Today's O-aminobenzenesulfonic acid is widely used. In the industry of dyeing and weaving, it helps to make color materials; in the road of medicine, it is the basis of preparations. Although its name is different, it is Fang family should scrutinize its name in detail and make it clear that it is the same thing, so that it can be used in research and application without error and make the best use of it, so as to benefit the interests of all things.

Safety & Operational Standards

Standard for the safety and operation of o-aminobenzenesulfonic acid products
For those who use o-aminobenzenesulfonic acid, it is also a chemical substance. It has a wide range of industrial uses, but it is related to safety and operation standards, so it must not be ignored.
The way to safety is the first protection. Those who use this object must wear suitable protective equipment. Goggles to prevent it from splashing into the eyes and eyes; masks to prevent dust from entering the lungs; gloves to protect the hands from touching the skin. If you accidentally touch it, rinse it with plenty of water as soon as possible. If it enters the eyes, seek medical attention immediately after rinsing; if it is stained on the skin, deal with it as appropriate after washing.
Storage rules are also important. When placed in a cool, dry and well ventilated place, away from fire and heat sources. Do not store with oxidants, acids, etc., to prevent dangerous reactions.
When operating, strictly follow the procedures. Weighing accurately, do not make errors. The operation of dissolution and mixing is slow and orderly to prevent overreaction. Stirring is appropriate, not too violent.
Waste disposal is also in accordance with regulations. Do not discard it at will. When collected in accordance with relevant laws and regulations, it should be properly handled to avoid polluting the environment.
In general, although o-amino benzenesulfonic acid is a useful thing, it must be handled and stored with caution to ensure safety and keep the environment clean for a long time.

Application Area

O - Amino - Benzene Sulfonic Acid is also used in the field of transformation. In the field of dyes, it can use important raw materials to help create a beautiful color. With its special properties, it can make the color of dyes more bright and lasting, and it can be used for printing and dyeing of dyes, etc., to make the product colorful.
It is also used in the field of material research and development, and also has its own functions. Its chemical properties can be used for the synthesis of new materials, or in the process, to help the research of new products, and it is expected to be the power of the next step.
Furthermore, for some chemical systems, O-Amino-Benzene Sulfonic Acid is also indispensable, which can provide the necessary information for analysis and other work, and promote the research process. Its important effect in the field of multi-application is to research the things that are important in the industry.

Research & Development

The rise of modern chemistry is increasingly detailed in the study of matter. Today there is O-Amino-Benzene Sulfonic Acid, and its research and development are worth paying attention to.
At the beginning, everyone knew little about its properties and production methods. However, those who have studied it have worked hard, based on experiments, guided by theory, and unremitting exploration. After a long time, gradually understand its structure and understand the principle of its reaction.
In the production method, only a crude method was obtained at the beginning, but after repeated improvements, the process improved and the yield also increased. Its application has also gradually spread, and it has contributed to various industries such as dyes and medicine. Nowadays, researchers are still looking forward to further optimizing the performance and expanding the application, so that this material can be used in more fields, shining brightly and being used by the world, promoting the progress of science and technology, and seeking the benefit of everyone.

Toxicity Research

Since modern times, chemical refinement, all kinds of new substances have emerged, and O-Amino-Benzene Sulfonic Acid is also one of these chemical products. However, its toxicity cannot be ignored.
The remaining elements study chemical toxins, and O-Amino-Benzene Sulfonic Acid focuses a lot. It enters the body, either through the mouth and nose, or from the skin. At first, it may only feel slightly ill, such as the head is dizzy and abdominal discomfort. However, over time, the viscera are damaged. Liver, the main excretion, toxic accumulation is abnormal excretion; kidney, Division excretion, invasion is not smooth excretion. What's worse, it may cause deficiency of qi and blood, blockage of meridians and collaterals, weakness of the body, and a multitude of diseases.
Looking at various experiments, feeding white mice, I saw that its activity gradually slowed down, hair was withered, and organ lesions were obvious. Therefore, in the production and use of this thing, the protection policy must not be ignored. Practitioners must be made aware of its harm, and they must be careful to wait for it, so as to protect their health and avoid the suffering of poisoning.

Future Prospects

Prospects of the future, for O - Amino - Benzene Sulfonic Acid products, is of great importance. The use of this product is not limited, and it can be used in its future storage.
It can be used in the chemical industry, or it can be developed. It can help the research of new materials, so that the material is more efficient and the performance is better, so as to meet the needs of many people. In terms of development, it is also expected to become an important raw material, or it can help new research and save more patients.
In addition, in the process of protection, this product may work wonders. It can develop high-quality workmanship, reduce pollution, and meet the needs of the next protection.
In the future, O - Amino - Benzene Sulfonic Acid is like a bright star, full of hope, waiting for our scientific researchers to unremitting exploration, we will definitely be able to create a new situation.

Frequently Asked Questions

What are the main uses of O-Amino-Benzene Sulfonic Acid?

O-aminobenzenesulfonic acid, this substance is widely used. In the dye industry, it can be called a key raw material. It can undergo a series of delicate chemical reactions to turn into many colorful dyes, such as azo dyes. These dyes are very useful in the field of textile dyeing. They can give fabrics a colorful color, make them bright and durable, and add color to the textile industry.
Furthermore, in the field of medicine and chemical industry, o-aminobenzenesulfonic acid also plays a pivotal role. It can be used as an important intermediate in the synthesis of specific drugs. By ingeniously fusing with other chemicals, it can be carved through fine craftsmanship to make a good medicine for treating diseases and saving people, contributing to human health and well-being.
In the manufacture of pigments, o-aminobenzenesulfonic acid is also indispensable. With its unique chemical properties, it can help to prepare pigments with excellent performance. These pigments are widely used in coatings, inks and other industries, so that the products show high-quality color effects, enhance their decorative and practical.
In addition, in the synthesis of some fine chemicals, o-aminobenzenesulfonic acid is also often used as a key reagent or intermediate, participating in complex chemical reaction systems, promoting the development and progress of the fine chemical industry, and helping to produce more high-performance, high-value-added fine chemicals to meet the stringent needs of special chemicals in various fields.

What are the physical properties of O-Amino-Benzene Sulfonic Acid?

O-aminobenzenesulfonic acid is one of the organic compounds. Its physical properties are unique.
Looking at its morphology, it is mostly white to light yellow crystalline powder under normal conditions, which is easy to observe and operate. In terms of solubility, it can show a certain solubility in water, which makes it play a role in many aqueous reaction systems and can be evenly dispersed to participate in the reaction; while in organic solvents, such as ethanol, ether, etc., its solubility is relatively limited. This difference is of great significance for separation, purification and the selection of specific reaction environments.
When it comes to melting point, o-aminobenzenesulfonic acid has a specific melting point value. This melting point characteristic can help to identify the substance, and also provide a key reference for its state transition during heating. Knowing the melting point can better control its changes in the heating process. In addition, its stability cannot be ignored. Under normal environmental conditions, it has certain stability. In case of extreme conditions such as high temperature and strong oxidants, its chemical structure may change and its stability will be damaged. This stability characteristic determines its storage and transportation requirements. It is necessary to choose a suitable environment to avoid contact with substances that may cause reactions, so as to ensure that its chemical properties remain unchanged, so as to ensure normal application in industrial production, scientific research experiments and other fields.

What are the chemical properties of O-Amino-Benzene Sulfonic Acid

O-Amino-Benzene + Sulfonic Acid (O-Amino-Benzene + Sulfonic Acid) has unique chemical properties. It is active and has a special reaction because it contains amino groups and sulfonic acid groups.
Amino groups are basic and can form salts with acids. When encountering strong acids, amino groups are easy to react with them to form ammonium salts. This reaction is like yin and yang, with acid and base complementing each other, transforming the properties of the substance.
Sulfonic acid groups are acidic and can exhibit the commonality of acids. It can neutralize with bases to form corresponding salts and water. And sulfonic acids are basically stable and can maintain their own structure in many chemical reaction environments.
O-aminobenzenesulfonic acid is also nucleophilic, and can participate in nucleophilic substitution reactions due to amino groups. Like a warrior, amino groups act as nucleophilic reagents to attack suitable electrophilic substrates and realize the remodeling and transformation of molecular structures.
At the same time, it has electrophilicity, and sulfonic acid groups can attract electrons. In specific reactions, they attract nucleophilic reagents to attack. This property makes it an important raw material for building complex molecular structures in the field of organic synthesis.
In addition, due to the interaction between intra-molecular amino groups and sulfonic acid groups, intra-molecular hydrogen bonds can be generated, which affect their physical properties, such as melting point and solubility. In solvents, its solubility is different from conventional compounds due to hydrogen bonding, or increased or decreased, depending on the specific solvent properties. This is an important chemical property of o-aminobenzene sulfonic acid.

What is the production method of O-Amino-Benzene Sulfonic Acid?

The method of making o-aminobenzenesulfonic acid used to follow the path of sulfonation and then nitrification and reduction.
At the beginning, benzenesulfonic acid was used as the beginning, and it was mixed with acid (sulfuric acid and nitric acid) to form nitrobenzenesulfonic acid. This step requires strict control of temperature, acid ratio and other conditions. The cover temperature is slightly biased, and the location of the product is different. If you want to obtain ortho-nitrobenzenesulfonic acid, you must adjust it carefully.
After obtaining nitrobenzenesulfonic acid, apply iron powder and hydrochloric acid or other suitable reducing agents to it to make the nitro group into an amino group, and then obtain o-aminobenzenesulfonic acid However, although the method of iron powder reduction is classic, it has many drawbacks, such as the generation of iron sludge waste residue, pollution in the environment, and cumbersome post-treatment.
In today's world, there is also a new way. The method of catalytic hydrogenation is gradually emerging. It uses precious metals or other high-efficiency catalysts to hydrogenate nitrobenzenesulfonic acid at a suitable hydrogen pressure and temperature. This way is clean, there is no risk of waste residue, and the atomic economy is good. However, the catalyst is expensive and requires high equipment.
Or there is a special substitution reaction, starting from benzene derivatives with special substituents, through ingenious reaction design, the structure of o-amino benzenesulfonic acid is constructed. These new methods often rely on novel reagents and unique reaction conditions. Although they are innovative, they are mostly in the research stage. To achieve industrialization, it will take time to solve many engineering and cost problems.

What are the precautions for O-Amino-Benzene Sulfonic Acid in storage and transportation?

O-Aminobenzenesulfonic acid, this substance must pay attention to many key matters when storing and transporting.
Bear the brunt, the storage environment is very important. It should be placed in a cool, dry and well-ventilated place. Because of its certain hygroscopicity, humid environment is prone to moisture agglomeration, affecting quality and use. If it is damp, it may cause changes in chemical reactivity or even deterioration.
Furthermore, keep away from fire and heat sources. Although this substance is not highly flammable, it is still potentially dangerous when heated or exposed to open flames, or it may cause combustion or even explosion, endangering the safety of personnel and facilities.
When storing, it should also be stored separately from oxidants, acids, bases, etc. Due to its active chemical properties, contact with the above substances is prone to violent chemical reactions, resulting in accidents. If it encounters with strong oxidants, or induces oxidation reactions, a large amount of heat is released, causing danger.
During transportation, the packaging must be tight and firm. Ensure that the packaging is not damaged or leaked to prevent the product from being lost or coming into contact with external substances. Choose suitable transportation tools to avoid mixing with other incompatible substances.
When loading and unloading, the operator should load and unload lightly, and do not drop or press. Due to rough operation or damage to the packaging, and may cause chemical reactions due to friction and impact.
At transportation and storage sites, corresponding emergency treatment equipment and suitable containment materials should be prepared. In the event of a leak or other accident, it can be properly disposed of in a timely manner to reduce the harm.
In short, the storage and transportation of O-aminobenzenesulfonic acid requires careful follow of relevant regulations and operating procedures to ensure the safety of personnel, the environment and the stability of product quality.