6-Amino-2-Naphthalenesulfonic Acid

Lingxian Chemical

Specifications

HS Code	768599
Chemical Formula	C10H9NO3S
Molar Mass	223.25 g/mol
Appearance	white to light brown solid
Solubility In Water	slightly soluble
Solubility In Organic Solvents	soluble in some organic solvents like ethanol
Melting Point	163 - 164 °C
Pka Value	around 3.8
Density	1.48 g/cm³
Odor	odorless
Stability	stable under normal conditions

Packing & Storage

Packing	500g of 6 - Amino - 2 - Naphthalenesulfonic Acid packaged in a sealed plastic bag.
Storage	6 - Amino - 2 - Naphthalenesulfonic Acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, flames, and incompatible substances like strong oxidizing agents. Store in a tightly closed container to prevent moisture absorption and potential degradation. This helps maintain its chemical integrity and safety during storage.
Shipping	6 - Amino - 2 - Naphthalenesulfonic Acid should be shipped in tightly sealed containers, protected from moisture and heat. Follow relevant chemical transport regulations to ensure safe and proper delivery.

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General Information

Historical Development

6-Amino-2-naphthalene sulfonic acid is also an important product in the chemical industry. It originated in the past when chemical research was pursued. At that time, various sages were dedicated to organic synthesis, hoping to obtain new quality for use.
At the beginning, it was difficult to explore, and the method for making this acid was not good, and the yield was quite low. However, scholars were persevering and studied it for many years. After repeated attempts, the process was improved, and progress was gradually made.
At a certain time, a method stood out, starting with naphthalene, and through sulfonation, nitrification and other steps, this 6-amino-2-naphthalene sulfonic acid was obtained. Since then, its production has gradually stabilized, emerging in the dye, pharmaceutical and other industries, and its function has become increasingly apparent, becoming a key achievement in the history of chemical industry.

Product Overview

6-Amino-2-naphthalene sulfonic acid is also a chemical product. Its shape, or crystal, white and pure. It has the characteristics of acid, and has different solubilities in solvents such as water and alcohol.
The method of making, often starts with naphthalene, and is obtained by nitrate, sulfonation, and reduction. Nitrate causes naphthalene to produce nitro, sulfonates and adds sulfonic acid groups, and then uses the farro nitro as an amino group, so it becomes this product.
It has a wide range of uses and is an important material for dyeing and pharmaceutical industries. In the dyeing industry, it can be used as the original dyeing agent, and the dyeing aids are colorful; in the pharmaceutical industry, or as an intermediate for medicine, it is related to the system of various medicines.
Viewing this 6-amino-2-naphthalenesulfonic acid, its function in the chemical industry is obvious, and its preparation and use are worth studying and analyzing by researchers to promote the progress of the chemical industry and expand its capabilities.

Physical & Chemical Properties

6-Amino-2-naphthalenesulfonic acid is an organic compound. Its color is often white to light gray, and it is like a crystalline powder.
In terms of its physical properties, the melting point is quite high, about 165 to 168 degrees Celsius. It is difficult to dissolve in cold water, slightly soluble in hot water, and soluble in alkali.
As for chemical properties, it is amphoteric because of its amino and sulfonic acid groups. Amino groups can form salts with acids, and sulfonic acid groups can react with bases. Its chemical activity also makes it useful in many fields such as dyes and pharmaceutical synthesis. In the preparation of dyes, with its structural properties, it can be used as a key intermediate to help dyes generate brilliant colors and make dyeing wonderful.

Technical Specifications & Labeling

Process specification and identification of 6-amino-2-naphthalenesulfonic acid (commodity parameters)
Fu 6-amino-2-naphthalenesulfonic acid is an important chemical product. Its process specification, the first choice of raw materials, must choose pure ones to ensure quality. In the synthesis method, temperature control and speed regulation are all important. During the reaction, the temperature needs to be stable in a suitable range. If it is too fast, it will easily cause side effects, and if it is too slow, it will be time-consuming and laborious.
As for the identification, the product parameters must be detailed. The geometry of the purity content and the number of impurities should be clearly informed. On the packaging, state the product name, specification, batch number and other items, so that it can be identified and managed. Only in this way can we ensure its quality and smooth use during production and circulation, so that this chemical product is suitable for all industrial needs and contributes to the prosperity of all industries.

Preparation Method

The method for preparing 6-amino-2-naphthalenesulfonic acid, the raw materials of which are important for biotechnology, reverse steps, and catalytic preparation. Take the amount of naphthalene and the initial raw material, and put it in a specific reverse vessel. Under the catalytic action of sulfuric acid, add 1 to a certain degree to make naphthalenesulfonic acid, and generate naphthalenesulfonic acid. In this step, it is necessary to control the degree of reaction, so as to avoid side reactions.
However, the resulting naphthalenesulfonic acid is mixed with ammonia water, and under specific forces and catalysts, the ammonization reaction is performed by adding 1. In this process, the reaction rate and the reaction degree of the catalyst are large. 6-Amino-2-naphthalenesulfonic acid crude products can be obtained after ammoniation is completed, cooling, crystallization, and separation. Then refined extraction, such as heavy crystallization and other operations, can obtain the highest-quality 6-amino-2-naphthalenesulfonic acid products. The whole production process requires precise control of each product to ensure the quality and efficiency of the product.

Chemical Reactions & Modifications

The anti-modification of 6-amino-2-naphthalenesulfonic acid is of great importance to the study of this compound. Its reaction often involves the modification of general components, such as the degree of resistance and catalysis. When the degree of resistance increases, the reaction rate may increase, but it is also necessary to prevent the breeding of side reactions. Catalysis can promote the reaction in the desired direction and improve the reaction rate.
For modification, it is designed to give its novelty. Or introduce specific groups to change its solubility and characterization. The modification process needs to be precisely controlled, and it is not effective. With ingenious modification and anti-modification, 6-amino-2-naphthalenesulfonic acid is expected to be used in many fields, such as dyes, chemical synthesis, etc., which will add to the development.

Synonyms & Product Names

6-Amino-2-naphthalenesulfonic acid, which has many synonymous names and commercial names. Its synonymous names, such as β-naphthalamine-6-sulfonic acid, are called because the β position of the naphthalene ring in the molecular structure is connected with an amino group and a sulfonic acid group. It is also called brunic acid, which may be due to industry usage or specific historical reasons.
As for trade names, there are also many kinds. Different manufacturers take the names of their products in recognition of their characteristics. In the chemical market, these names are often circulated. Although the names are different, they all refer to this 6-amino-2-naphthalenesulfonic acid. It is widely used in the fields of dyes, medicine, etc. Due to the complexity of synonyms and trade names, it is necessary to clarify the meaning in relevant research and transactions to avoid confusion.

Safety & Operational Standards

6-Amino-2-naphthalenesulfonic acid, which is an important raw material for chemical industry, is related to the preparation of many industrial products. However, safety and operating standards are very important in the production and use process. If you are not careful, there will be hidden dangers.
All places involving 6-amino-2-naphthalenesulfonic acid must improve safety facilities. Ventilation systems should always be checked and updated to ensure air circulation and prevent the accumulation of harmful gases. Fire extinguishing devices should also be adapted to deal with possible fires.
Operators must strictly abide by operating standards. Before operation, you must wear professional protective equipment, such as protective clothing, protective gloves, anti-goggles, etc., to protect yourself. When feeding, according to the precise proportion and sequence, do not be impatient, so as not to lose control of the reaction. During the reaction process, closely monitor the temperature, pressure and other parameters. If there is a slight abnormality, take measures quickly.
There are also regulations for material storage. 6-Amino-2-naphthalenesulfonic acid should be stored in a cool, dry and ventilated place, away from fire and heat sources, and stored separately from oxidants and alkalis to prevent its interaction from causing danger. And the storage area should be equipped with obvious warning signs.
Waste disposal should not be taken lightly. Waste containing 6-Amino-2-naphthalenesulfonic acid should be properly disposed of in accordance with environmental regulations and should not be discarded at will, so as to avoid pollution to the environment.
In short, the safety and operation specifications of 6-amino-2-naphthalenesulfonic acid require high attention from all parties, and nothing should be slack to ensure production safety and environmental friendliness.

Application Area

6-Amino-2-naphthalenesulfonic acid has a wide range of uses. In the field of dyes, it can be used as an important intermediate. Based on it, it can produce colorful dyes, which can be used for fabric dyeing to make fabrics bright and lasting. In the genus of medicine, it also has certain value. Or it can participate in the synthesis of some drugs and help in the treatment of diseases. In the chemical industry, it is the raw material of many fine chemicals. It helps to form special properties of additives, additives, etc. This substance is used in many fields of industry. It is like a brick and stone, building a high-rise building in the industry, promoting the development of various related industries, and has far-reaching impact on the economy and life. Its status and role in the application field should not be underestimated.

Research & Development

6-Amino-2-naphthalenesulfonic acid is an important object in the study of organic compounds. I have been studying this product for several years and have gained a lot.
At the beginning, the method of its synthesis was explored. After many attempts, the influence of different reaction conditions was observed. Either change the temperature or adjust the pH, and strive for the optimal path. Finally, a method can be obtained, which can increase its yield, and the purity of the product is also good.
Then, study its properties. It is known that its solubility is specific in specific solvents, and its chemical activity is also regular. These properties pave the way for its application.
As for the development, it has great potential in the fields of dyes, medicine and so on. Among the dyes, it can help the color to be bright and lasting; in medicine, it is expected to become a raw material for new pharmaceuticals. I will make unremitting efforts to expand its uses, contribute to the academic community and industry, and promote its long-term development.

Toxicity Research

About the toxicity study of 6-amino-2-naphthalenesulfonic acid
Fu 6-amino-2-naphthalenesulfonic acid, chemical substances are also. As a chemical researcher, it is my top priority to investigate its toxicity.
In the experimental investigation, the first view of its effect on organisms. Taking various organisms as samples, different doses of 6-amino-2-naphthalenesulfonic acid were administered. At low doses, some biological physiology is slightly different, but it is acceptable. And with increasing doses, the abnormalities of organisms become more and more apparent. Or metabolic disorders, or functional decline.
Investigate the cause of its toxicity, explore its molecular structure and reaction mechanism. Some groups in its structure may interact with molecules in organisms to cause biochemical reaction disorder.
In summary, 6-amino-2-naphthalenesulfonic acid has certain toxicity. When it is produced and used, care should be taken to prevent its harm to organisms and the environment. Strict regulations must be set to control its diffusion to ensure ecological safety and well-being of all living beings.

Future Prospects

I have studied the product of 6 - Amino - 2 - Naphthalenesulfonic Acid. Looking at this product today, in the field of industry, it has a wide range of uses and can be used to make dyes, medicines, etc. However, in today's world, technology is changing day by day, and the development of this product is still promising.
In the future, it may be possible to obtain exquisite techniques in the synthesis method, so that the yield will be higher and the cost will be lower. And the impact on the environment can also be reduced. On top of performance, new products may be discovered to meet more needs.
Although the road ahead is long, I believe that with time, the 6-Amino-2-Naphthalenesulfonic Acid will be able to shine in various fields, adding many conveniences to the life of the world and promoting the prosperity of the industry. This is my vision for its future.

Frequently Asked Questions

What are the main uses of 6-Amino-2-Naphthalenesulfonic Acid?

6-Amino-2-naphthalenesulfonic acid is one of the organic compounds. It has a wide range of uses and occupies an important position in the dye industry.
Gein 6-amino-2-naphthalenesulfonic acid has a specific chemical structure and properties, so it is often used as a key intermediate for the synthesis of various colorful dyes. The rich color of dyes and the quality of color fastness are closely related to the application of 6-amino-2-naphthalenesulfonic acid in the synthesis process. The preparation of many classic azo dyes requires the help of this compound and a series of fine chemical reactions to achieve the desired color effect and performance.
It can also be seen in the field of medicine. Although it is not directly used as a drug, in some drug synthesis pathways, 6-amino-2-naphthalenesulfonic acid can be used as a raw material or intermediate to contribute to the synthesis of drug molecules with specific pharmacological activities. Its chemical properties help to construct complex drug molecular structures to meet the needs of treating diseases.
In addition, in some research and experimental scenarios, 6-amino-2-naphthalenesulfonic acid can provide specific reaction check points and structural basis for researchers due to its unique chemical properties, which can assist in the development of new materials and the exploration of chemical reaction mechanisms. With its application in different fields, 6-amino-2-naphthalenesulfonic acid plays an indispensable role in promoting industrial production and scientific research progress.

What are the physical properties of 6-Amino-2-Naphthalenesulfonic Acid?

6-Amino-2-naphthalenesulfonic acid is a class of organic compounds. Its physical properties are unique, let me tell them one by one.
Looking at its properties, under room temperature and pressure, it is mostly white to light gray crystalline powder. This form is conducive to storage and transportation, and is also convenient for subsequent industrial operation.
When it comes to solubility, 6-amino-2-naphthalenesulfonic acid is soluble in water. This property makes it show good dispersion and reactivity in many reactions or applications of aqueous systems. When dissolved in water, it can form specific interactions with water molecules, which in turn affect its chemical behavior.
As for the melting point, 6-amino-2-naphthalenesulfonic acid has a specific melting point value. The melting point reflects the strength of the intermolecular forces. Its melting point determines the temperature conditions required for the substance to transform from solid to liquid, and it is of great significance to control the temperature during its processing and use.
In addition, 6-amino-2-naphthalenesulfonic acid has certain stability. However, under certain environmental conditions, such as extreme situations such as high temperature, strong acid and alkali, its chemical structure may change.
And its appearance is stable in color, and it is not prone to significant color changes in normal storage and use environments. This stability and appearance characteristics lay the foundation for its application in many fields, such as dyes, medicine and other industries, which have high requirements for the stability and appearance of its physical properties. The characteristics of 6-amino-2-naphthalenesulfonic acid are in line with such needs.

What are the chemical properties of 6-Amino-2-Naphthalenesulfonic Acid?

6-Amino-2-naphthalenesulfonic acid, this is an organic compound. It is acidic. Due to its sulfonic acid group, it can partially ionize hydrogen ions in water, and can neutralize with alkali substances to generate corresponding salts and water.
Its amino properties are active and can participate in many reactions. For example, it can interact with acylating reagents to initiate acylation reactions, and the hydrogen atom on the amino group is replaced by an acyl group. This reaction is often used in organic synthesis to protect amino groups or introduce specific functional groups.
At the same time, the naphthalene ring structure endows it with certain stability and conjugation properties. Under conditions such as light and heat, the conjugated system may participate in some special reactions, such as photochemical reactions.
In terms of solubility, it has a certain solubility in water because it contains the hydrophilic group of the sulfonic acid group, but the solubility is not very high due to the hydrophobicity of the naphthalene ring. In organic solvents, the solubility also varies depending on the polarity of the solvent and the intermolecular forces.
In chemical reactions, its reactivity and selectivity are affected by the relative positions of amino groups and sulfonic acid groups and the distribution of electron clouds in the naphthalene ring. Different reaction conditions, such as temperature, pH, catalyst, etc., will affect the reaction process and products. This compound is widely used in dyes, medicine and other fields, and its reaction properties can be used to prepare a variety of functional substances.

What is the preparation method of 6-Amino-2-Naphthalenesulfonic Acid?

6-Amino-2-naphthalenesulfonic acid, its preparation method used to follow a specific chemical path. The preparation of this substance often begins with naphthalene. Naphthalenes are sulfonated by introducing sulfonic acid groups under appropriate conditions to obtain intermediate products of naphthalenesulfonic acids.
When sulfonating, it is crucial to choose an appropriate sulfonating agent. Common sulfonating agents, such as concentrated sulfuric acid, fuming sulfuric acid, etc. When operating, pay attention to the temperature, time and material ratio of the reaction. If the temperature is too high, it may cause excessive sulfonation and generate unnecessary by-products; if the temperature is too low, the reaction rate will be delayed and the yield will be affected.
After naphthalenesulfonic acid is obtained, the steps of aminization are carried out. Amination also requires careful selection of suitable amination reagents, such as ammonia and amine compounds. During the reaction process, factors such as the pH of the reaction environment and the use of catalysts must be taken into account. The regulation of pH is related to the direction and process of the reaction; the addition of catalysts can speed up the reaction rate and improve the reaction efficiency.
In the preparation process, each step needs to be carefully controlled. After the reaction is completed, the separation and purification of the product are also important links. Crystallization, extraction, distillation and other methods are often used to obtain pure 6-amino-2-naphthalene sulfonic acid. In this way, high-quality products can be obtained to meet the needs of subsequent chemical, pharmaceutical and other fields.

6-Amino-2-Naphthalenesulfonic precautions in the use of Acid

6-Amino-2-naphthalenesulfonic acid, this is a chemical substance. When using, many matters need to be paid attention to.
Bearing the brunt of it, safety protection must be comprehensive. Because it is corrosive to a certain extent, contact with it, protective equipment is indispensable. If you wear appropriate protective gloves to prevent erosion of the skin, causing skin damage, redness, swelling, pain, etc.; also wear goggles, if accidentally splashed into the eyes, it may cause serious damage to the eyes, and even endanger vision.
Furthermore, be careful when storing. It should be placed in a cool, dry and well-ventilated place, away from fire and heat sources. Due to its relatively active nature, under high temperature environment, there may be a risk of chemical reaction, causing it to deteriorate, affecting the use effect, and even causing safety accidents.
During use, accurate control of the dosage is extremely critical. According to specific experimental or production needs, accurate measurement is taken. Too much dosage, or excessive reaction, produces unnecessary by-products, not only wastes raw materials, but also interferes with subsequent processes; if the dosage is too small, the desired effect cannot be achieved.
At the same time, the use environment also needs to be paid attention to. It needs to be operated in a fume hood, because during reaction or use, harmful gases may be volatilized, and good ventilation can be discharged in time to reduce the harm to the human body.
Furthermore, after use, properly dispose of the residue and waste. Do not dump at will, and should follow relevant environmental protection regulations to carry out harmless treatment to avoid pollution to the environment.
The use of 6-amino-2-naphthalenesulfonic acid requires careful treatment in terms of safety, storage, dosage, environment and waste disposal to ensure a smooth use process without safety and environmental concerns.