1-Aminonaphthalene-3,8-Disulfonic Acid

Lingxian Chemical

Specifications

HS Code	401843
Chemical Formula	C10H9NO6S2
Molecular Weight	303.31
Appearance	usually a solid
Solubility In Water	soluble in water
Acidity	contains acidic sulfonic acid groups
Physical State At Room Temperature	solid
Odor	odorless (commonly)
Melting Point	data specific to pure form
Boiling Point	decomposes before boiling
Stability	stable under normal conditions
Color	white to light - colored solid

Packing & Storage

Packing	1 - Aminonaphthalene - 3,8 - Disulfonic Acid: Packed in 5 - kg bags for easy handling.
Storage	1 - Aminonaphthalene - 3,8 - Disulfonic Acid should be stored in a cool, dry place, away from direct sunlight. Keep it in a well - sealed container to prevent moisture absorption and contact with air, which could potentially lead to degradation. Store away from incompatible substances like strong oxidizing agents to avoid chemical reactions. Ensure the storage area has good ventilation.
Shipping	1 - Aminonaphthalene - 3,8 - Disulfonic Acid is shipped in containers suitable for chemicals. It must be transported under proper safety protocols, ensuring protection from moisture, heat, and incompatible substances during transit.

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General Information

Historical Development

The product of 1-aminonaphthalene-3,8-disulfonic acid has a long history of development. In the past, chemical sages were exploring the mysteries of matter and gradually paid attention to this unique compound. At first, their understanding was still shallow, and only a little knowledge of its basic properties. However, with the passage of time, many wise men devoted themselves to research and repeatedly explored and analyzed in the laboratory.
At that time, the experimental conditions were quite simple, and the instruments were not as delicate as they are today. However, the ancestors made unremitting efforts with their perseverance. Or they obtained key clues by chance, or finally made breakthroughs after countless failures. With the in-depth research, the synthesis methods and properties of 1-aminonaphthalene-3,8-disulfonic acid have been better understood, and the status of this compound in the field of chemistry has become increasingly important, laying a solid foundation for more related research in the future.

Product Overview

1-Aminonaphthalene-3,8-disulfonic acid is also a chemical product. Its shape may be powder, white or yellowish in color. This product has unique properties, is soluble in water, and can develop its characteristics in a specific chemical environment.
The preparation method often goes through a multi-step reaction. The initial raw material undergoes subtle chemical changes, or involves substitution, sulfonation and other reactions to obtain this product. It has a wide range of industrial uses. In the field of dye manufacturing, it can be a key intermediate and a dye aid. In some chemical synthesis processes, it is also an important reagent to help synthesize special compounds.
However, caution is required when preparing and using it. Because it has certain chemical activity, improper operation, or dangerous. Therefore, the operator must understand its nature and abide by the operating procedures in order to ensure safety, so that this product can be used to its full potential and contribute to the development of the chemical industry.

Physical & Chemical Properties

The physicochemical properties of 1-aminonaphthalene-3,8-disulfonic acid are particularly important. This compound is white in color or powder in shape and has a fine texture. In terms of solubility, it is soluble in water, but the solubility varies with temperature, and the temperature gradually rises, and its solubility also increases.
Its melting point is quite high, it has good thermal stability, and it is not easy to melt and decompose when heated. In chemical properties, it has the characteristic of amphoteric because it contains amino groups and sulfonic acid groups. Amino groups can react with acids, and sulfonic acid groups can react with bases.
And it is widely used in the field of organic synthesis, often the key raw material for the preparation of various functional materials. Due to its unique physical and chemical properties, it can endow products with specific properties, which are of great value in many fields such as materials science.

Technical Specifications & Labeling

1 - Aminonaphthalene - 3,8 - Disulfonic Acid is also a chemical product. Its workmanship is very important. To make this product, it is necessary to follow the standard method. The raw materials are carefully selected, the proportion is appropriate, and the operation is in sequence. There should be no mistakes. It is clear that the product is not described, so that the knower can easily see it. The location, the degree, or the use are all clearly identifiable. In this way, the requirements of the party are in accordance with the requirements of the company, so as to ensure that the quantity of this product is high, the use is appropriate, and its function is not used in general areas. Do not cause harm due to unclear, unclear use, and judgment.

Preparation Method

The preparation method of 1-aminonaphthalene-3,8-disulfonic acid is related to the raw material and production process, reaction steps and catalytic mechanism.
To prepare this product, first take the naphthalene as the initial raw material, through the sulfonation reaction, using sulfuric acid as the sulfonating agent, at a suitable temperature and time, the naphthalene molecule is introduced into the sulfonic acid group to obtain the naphthalene sulfonic acid intermediate. This step requires precise temperature control, because the temperature affects the substitution position of the sulfonic acid group and the proportion of the product.
Then, the intermediate is nitrified, and nitric acid is used as the nitrifying agent. Under specific conditions, the nitro group is introduced at the appropriate check point of the naphthalene ring to generate a product containing nitro and sulfonic acid groups. This reaction also needs to
Finally, the nitro-containing product is reduced to a suitable reducing agent, such as iron powder and hydrochloric acid system, so that the nitro group is converted into an amino group, and the final product is 1-aminonaphthalene-3,8-disulfonic acid. During the whole process, the reaction conditions of each step are precisely regulated, and the catalytic mechanism is rationally used to ensure the purity and yield of the product.

Chemical Reactions & Modifications

1 - Aminonaphthalene - 3,8 - Disulfonic Acid is an important chemical product. Its chemical reaction and modification are related to many properties and applications.
Looking at the reaction of this compound, the reactivity of its sulfonic acid group and amino group has been explored in the past. Sulfonic acid groups can participate in reactions such as sulfonation, and amino groups can also undergo nucleophilic substitution. However, the traditional reaction has severe conditions and many side reactions.
To improve it, we need to start with the reaction conditions and reagents. Using a mild catalyst may optimize the reaction path, reduce the reaction temperature and pressure, and reduce side reactions. If a specific metal complex is selected as the catalyst, it is expected to precisely regulate the reaction check point, the purity and yield of the product. And from the perspective of modification, by introducing different functional groups, it can be endowed with new properties, such as enhancing its solubility in specific solvents or enhancing its affinity for specific substrates, which has broad application prospects in many chemical fields.

Synonyms & Product Names

1-Aminonaphthalene-3,8-disulfonic acid, this substance is very important in chemical research. Its nicknames and trade names are numerous and have their own origins.
Ancient Fangjia, in the exploration of physical properties, gradually recognized the characteristics of this substance. Due to different production methods and uses, the names are also different. Or according to the origin of its raw materials, or according to the properties obtained by its reaction, many names came into being.
Looking at its nicknames, they are all connected with the essence of chemistry. Although the names are different, they all refer to the same substance. Trade names are often set up in response to market demand and application fields. In order to make the industry clear, although the names are complex, there are rules to follow. The way of chemical industry is also seen in its rigorous and changeable name, which is also a sign for exploring physical properties and expanding uses.

Safety & Operational Standards

1-Aminonaphthalene-3,8-disulfonic acid safety and operation specifications
Fu 1-aminonaphthalene-3,8-disulfonic acid, chemical products are also in the field of research and production, safety and standard operation is the key.
#1. Storage rules
When placed in a cool, dry and well ventilated place. Avoid open flames and hot topics to prevent accidents. Storage places should be kept away from oxidants, alkalis and other substances, because contact with them or violent reactions may cause safety risks. When choosing containers, be firmly sealed to prevent their leakage and damage to the environment and people.
#Second, the operation
The operator should strictly follow the procedures and wear suitable protective equipment, such as protective clothing, gloves and goggles, to guard against possible hazards. In the operation room, ventilation must be smooth to reduce the concentration of harmful substances in the air. When dispensing medicine, the action should be slow to prevent splashing. If there are any materials spilled, clean them up quickly according to the specifications, and do not leave any residue.
#Third, emergency measures
If it accidentally touches the skin, rinse quickly with plenty of water, followed by soap. If it enters the eyes, open the eyelids, rinse with flowing water or normal saline, and seek medical attention immediately. In case of fire, according to its nature, choose suitable fire extinguishing equipment, such as dry powder, carbon dioxide fire extinguishers, etc.
#4. Waste treatment
Waste 1-aminonaphthalene-3,8-disulfonic acid cannot be disposed of at will. It must be handed over to a professional treatment agency in accordance with relevant regulations. Treatment methods, or chemical decomposition, or safe burial, must ensure that the environment is not contaminated by it.
In short, in the research and use of 1-aminonaphthalene-3,8-disulfonic acid, safety is the first priority, and standardized operation can be used to avoid disasters and promote the smooth development of scientific research and production.

Application Area

1-Aminonaphthalene-3,8-disulfonic acid, this is an important chemical substance. Its application field is quite wide. In the dyeing and weaving industry, it can be used as a dye intermediate. After delicate chemical changes, it can produce dyes with brilliant color and good fastness, making the color of fabrics last for a long time. In the field of pharmaceuticals, because of its special chemical structure, it may provide a key starting material for the development of new drugs, helping to explore new ways of disease treatment. In some fine chemical products, it can also be seen, or it can optimize the characteristics and properties of products. Overall, 1-aminonaphthalene-3,8-disulfonic acid plays an indispensable role in many practical fields due to its unique chemical properties, promoting the progress and development of related industries.

Research & Development

Taste the way of scientific research, the most important thing is to explore and improve. Jin Yan 1 - Aminonaphthalene - 3,8 - Disulfonic Acid This object is the object of our dedicated study. At the beginning, there were many unknowns about its nature and production method. We searched the classics day and night and visited Fang's house, hoping to gain something.
Then we started to experiment, and after repeated trials, we observed the subtlety of its reaction and remembered the signs of its change. In the process, although we encountered many difficulties, such as the scarcity of raw materials and the harsh conditions, we never slack off in the slightest.
After long-term research, we finally got something. Understanding its characteristics and knowing the key to its preparation method pave the foundation for subsequent development. We are also well aware that the road ahead is long, and we still need to make unremitting efforts to bring this product to a higher level, hoping to benefit the world and add a touch of brilliance to the path of scientific research.

Toxicity Research

1-Aminonaphthalene-3,8-disulfonic acid is of great importance in the study of its toxicity. We carefully observe its properties in a rigorous manner.
After many experiments, it can be known that it is in a specific environment, or signs of toxicity. It has an impact on the surrounding things, such as insects, plants and trees. If insects touch it, they may move slowly, or even die; plants and trees may grow or stagnate, and leaves may change color or change.
The appearance of toxicity also depends on changes in the environment. High temperature, high humidity, toxicity or rapid onset; low temperature, very dry, toxicity or slow onset.
We should continue to study its toxicity mechanism, explore protection strategies, and hope to use it in the future, so as to avoid its harm, take advantage of its benefits, and ensure the safety of all things and the balance of ecology.

Future Prospects

In the near future, my heart is focused on 1 - Aminonaphthalene - 3,8 - Disulfonic Acid. This compound contains a powerful force. In the field of chemical research, it may be possible to explore new avenues. Its exquisite and unique characteristics are expected to be used in research, helping to target more refined substances and improve their effectiveness. Or in the field of materials science, it will give birth to new materials with excellent performance, such as those with special properties, adsorption and other properties, for high-tech products. In terms of protection, it may be possible to develop efficient methods for removing pollutants. I will work hard for researchers to explore its secrets, hoping to make its future grand development and benefit the world.

Frequently Asked Questions

What is the main use of 1-aminonaphthalene-3,8-disulfonic acid?

1-Aminonaphthalene-3,8-disulfonic acid, also known as amino-J acid, has the following main uses:
This compound is a crucial raw material in the dye industry. It can be used as a precursor for the preparation of various types of dyes. Taking azo dyes as an example, 1-aminonaphthalene-3,8-disulfonic acid can be coupled with specific diazo salts through a series of delicate chemical reactions, resulting in brilliant colors and excellent performance azo dyes. Such dyes are widely used in the dyeing process of textiles. Whether it is natural fibers such as cotton and linen silk or chemical synthetic fibers, these dyes can give colorful colors, and have good light resistance and washable fastness, making the fabric color lasting and bright after dyeing.
In the field of pigment production, 1-aminonaphthalene-3,8-disulfonic acid also plays a key role. Through appropriate chemical conversion and physical treatment, organic pigments with excellent performance can be prepared. Such pigments are often used in inks, coatings, plastics and other industries to give products rich hue and high hiding power, ensuring clear and bright printing patterns, full color coatings, and beautiful appearance of plastic products.
In addition, in some pharmaceutical and organic synthesis studies, 1-aminonaphthalene-3,8-disulfonic acid can be used as an important intermediate due to its unique molecular structure. Researchers can perform derivatization reactions based on its structure to explore and synthesize compounds with potential biological activities, providing an important material basis and research direction for the development of new drug development and organic synthesis chemistry.

What are the physical properties of 1-aminonaphthalene-3,8-disulfonic acid?

1-Aminonaphthalene-3,8-disulfonic acid, also known as amino-J acid, is an important organic compound. Its physical properties are quite unique. At room temperature, it is mostly white to slightly yellow crystalline powder.
In terms of solubility, this substance is slightly soluble in cold water, but more soluble in hot water. In organic solvents, its solubility is poor. This property is crucial in many chemical operations, such as separation and purification processes. Due to the difference in solubility in hot and cold water, effective separation can be achieved by temperature regulation.
When it comes to melting point, 1-aminonaphthalene-3,8-disulfonic acid has a specific melting point value, but this value will vary slightly depending on the purity. Accurate determination of melting point is often an important means to identify the purity of the substance.
Its density is also an important physical parameter. The specific density reflects the compactness and mass distribution of the molecules of the substance. In industrial production and application, density parameters play an indispensable role in the measurement, mixing of materials and the control of product properties.
In addition, the hygroscopicity of 1-aminonaphthalene-3,8-disulfonic acid cannot be ignored. Due to the characteristics of its molecular structure, it is easy to absorb moisture from the air in a humid environment. This hygroscopicity places specific requirements on its storage and transportation conditions. It is necessary to ensure that the storage environment is dry to prevent quality changes due to moisture absorption.
In summary, the physical properties of 1-aminonaphthalene-3,8-disulfonic acid, including appearance, solubility, melting point, density and hygroscopicity, have a profound impact on its production, application and storage. A comprehensive understanding and accurate control of these physical properties is the key to the rational use of this compound.

What are the chemical properties of 1-aminonaphthalene-3,8-disulfonic acid?

1-Aminonaphthalene-3,8-disulfonic acid, also known as amino-J acid, has unique properties and is crucial in chemical engineering.
Looking at its physical characteristics, at room temperature, 1-aminonaphthalene-3,8-disulfonic acid is mostly in the state of white to light gray powder, which is easily soluble in water. This characteristic makes it well dispersed and participating in the reaction in many aqueous solution reaction systems. And it has a certain hygroscopicity, and it needs to be properly stored in a humid environment to prevent moisture decomposition from affecting the quality.
When it comes to chemical properties, 1-aminonaphthalene-3,8-disulfonic acid is active due to its amino and sulfonic acid groups. Amino groups are basic and can neutralize with acids to form corresponding salts. Sulfonic acid groups have strong acidity and can ionize hydrogen ions in water, making the solution acidic and reacting with bases and basic oxides. The naphthalene ring in its molecular structure endows it with a certain conjugate system, making it stable. At the same time, it can also participate in many typical reactions of aromatic compounds, such as electrophilic substitution reactions. Under appropriate conditions, groups such as halogen atoms and nitro groups can replace hydrogen atoms on naphthalene rings to form various derivatives. These derivatives are widely used in dyes and pharmaceutical synthesis. For example, in the manufacture of dyes, different chromophore groups are introduced with the help of their structural characteristics, which can produce colorful dyes with excellent fastness. In addition, 1-aminonaphthalene-3,8-disulfonic acid can also participate in a variety of organic synthesis reactions as intermediates, laying the foundation for the preparation of complex organic compounds.

What is the preparation method of 1-aminonaphthalene-3,8-disulfonic acid?

To prepare 1-aminoanthracene-3,8-disulfonic acid, the method is as follows:
Take anthracene as the starting material first, and obtain anthraquinone-1-sulfonic acid by sulfonation. In this step, suitable reaction conditions need to be selected, such as temperature control, type and dosage of sulfonating agent. Commonly used sulfonating agents include concentrated sulfuric acid, fuming sulfuric acid, etc., which are selected according to the specific needs of the reaction. During the reaction, the concentration of sulfuric acid, reaction temperature and time have a significant impact on the yield and purity of the product. Generally speaking, high temperature and high concentration of sulfuric acid can promote the progress of the sulfonation reaction, but it will also increase the possibility of side reactions, so it must be carefully weighed. After
anthraquinone-1-sulfonic acid is obtained, the nitrification reaction is continued to produce 1-nitroanthraquinone-3,8-disulfonic acid. The key to this step is to precisely control the reaction conditions and choose the appropriate nitrifier. Common nitrifiers such as mixed acids (mixed solution of nitric acid and sulfuric acid) need to be carefully controlled in proportion and dosage, reaction temperature and time. If the temperature is too high, it is easy to cause excessive substitution of nitro groups or cause side reactions such as oxidation, which will damage the quality of the product; if the temperature is too low, the reaction rate will be slow, time-consuming and low yield.
Wait for 1-nitroanthraquinone-3,8-disulfonic acid to be made, and finally convert the nitro group to an amino group by reduction method, then obtain 1-aminoanthraquinone-3,8-disulfonic acid. There are various reduction methods, including catalytic hydrogenation, which uses precious metals or other suitable catalysts to reduce nitro groups through hydrogen at a suitable pressure and temperature. Chemical reduction methods can also be selected, such as iron powder, zinc powder and other metals added with acid as reducing agents for reduction. Each method has its advantages and disadvantages. The catalytic hydrogenation method has high product purity and simple post-processing, which requires high equipment. Although the chemical reduction method has low equipment requirements, the product separation and post-processing are more complex, and more waste may be generated. To produce 1-aminoanthracene-3,8-disulfonic acid, each step requires strict selection of raw materials and precise control of conditions in order to obtain products with high purity and yield.

What are the precautions for using 1-aminonaphthalene-3,8-disulfonic acid?

1-Aminonaphthalene-3,8-disulfonic acid is a chemical substance. During use, many things need to be paid attention to.
It is corrosive to a certain extent and can hurt the skin and mucous membranes when touched. Therefore, when taking it, be sure to prepare protective equipment, such as gloves, goggles, protective clothing, etc., and beware of direct contact with it. If you accidentally touch it, rinse it with plenty of water quickly, and seek medical treatment if necessary.
This substance may be toxic, and it can cause damage to health if inhaled or ingested. The operation should be carried out in a well-ventilated place or in a fume hood to prevent the inhalation of steam, dust, etc. If there is dust from this substance in the working environment, you should wear a gas mask.
1-Aminonaphthalene-3,8-disulfonic acid is chemically active or reacts with other substances. When using, read the relevant information carefully to clarify its compatibility with other chemicals used, and avoid dangers caused by improper mixing, such as violent reactions and toxic gases.
Storage should also be paid attention to. It should be placed in a cool, dry and well-ventilated place, away from fire and heat sources. And it should be stored separately from oxidants, acids, and bases. Do not mix storage to prevent accidental chemical reactions.
When using, strictly follow the operating procedures and precisely control the dosage and reaction conditions. Due to the different reaction results under different conditions, improper operation or out-of-control reaction endangers safety and affects product quality.
At the same time, properly dispose of remaining substances and waste, follow environmental regulations and relevant regulations, and do not dump at will to avoid polluting the environment.