2-Amino-4,8-Naphthalenedisulfonic Acid

Lingxian Chemical

Specifications

HS Code	798107
Chemical Formula	C10H9NO6S2
Molecular Weight	317.312 g/mol
Appearance	Solid
Solubility In Water	Soluble
Color	Off - white to light yellow
Melting Point	Decomposes
Pka Values	Multiple pKa values due to acidic groups
Odor	Odorless
Stability	Stable under normal conditions

Packing & Storage

Packing	500 - gram bottles of 2 - Amino - 4,8 - Naphthalenedisulfonic Acid, well - sealed for storage.
Storage	2 - Amino - 4,8 - Naphthalenedisulfonic Acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, flames, and oxidizing agents. Store in a tightly closed container to prevent moisture absorption and contamination. Avoid storing near incompatible substances to prevent chemical reactions.
Shipping	2 - Amino - 4,8 - Naphthalenedisulfonic Acid is shipped in well - sealed containers, compliant with chemical transport regulations. Special care is taken to prevent exposure to moisture and physical damage during transit.

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General Information

Historical Development

2-Amino-4,8-naphthalene disulfonic acid is also one of the chemical products. Its origin really originated from the research of chemical experts in the past. At the beginning, the research of this product was rare, and it was only a corner of chemical exploration. However, as the years passed, with the gradual refinement of chemical technology, the use of this product gradually expanded. In the dye industry, it is an important agent for enhancing color, and the dyed product has a bright and lasting color.
At that time, all kinds of processes were continuously improved, and the output was pure and high-quality. Many craftsmen worked hard and tried countless times, and finally made the production method of this product perfect day by day. Therefore, its status in the field of industry has become more and more important, contributing to the prosperity of the industry and adding a brilliant chapter to the history of chemistry, which has become a witness to the development of chemical industry from the past to today.

Product Overview

Product Overview of 2-Amino-4,8-naphthalenedisulfonic Acid
2-Amino-4,8-naphthalenedisulfonic acid is also an important product for chemical research. Its color or white to light yellow crystalline powder has unique chemical properties.
This product has an extraordinary position in the field of dye synthesis and is often a key intermediate for the preparation of a variety of high-end dyes. Due to its special molecular structure, it endows the dyes with excellent color, stability and light resistance.
The synthesis method is often formed by multi-step reaction according to a specific chemical path. It is necessary to precisely control the reaction conditions, such as temperature, pH and reaction time, in order to obtain high-purity products.
When storing, it should be placed in a cool and dry place to avoid co-storage with oxidants and alkalis to prevent deterioration or dangerous reactions.
With the advance of chemical technology, 2-amino-4,8-naphthalene disulfonic acid has broad application prospects, and there will be more possibilities to be explored in improving dye quality and opening up new application fields.

Physical & Chemical Properties

2-Amino-4,8-naphthalene disulfonic acid, its material has special physical and chemical properties. Looking at its shape, it is often in a crystalline state, with a white or nearly white color. If it is a fine powder, it glitters under light. In terms of its solubility, it is easily soluble in water, especially in hot water. This is due to the hydrophilicity of the sulfonic acid group in the molecular structure. Its melting point is quite high, and it needs to reach a specific high temperature to melt, which is due to the strong intermolecular force. Chemically acidic, because the sulfonic acid group can ionize hydrogen ions. In many chemical reactions, both amino groups and sulfonic acid groups can participate, such as neutralization with bases and substitution reactions with certain reagents. Due to its unique properties, it is widely used in the fields of chemical engineering, dyes, etc. It is indeed an important chemical substance.

Technical Specifications & Labeling

2-Amino-4,8-naphthalene disulfonic acid is also an important product in the chemical industry. Its process specifications and identification (commodity parameters) are related to the quality and cannot be ignored.
To make this product, it is necessary to follow a precise process. First take the naphthalene group, through sulfonation, make the sulfonic acid group enter the naphthalene ring in an appropriate position, and then use the method of amination to make the amino group connect to a specific place to form this product.
Its identification is also necessary. Commodity parameters should be clear, such as purity, should reach a very high standard, and there should be few impurities. Color and shape must also be determined, and the appearance is often white or nearly white powder to ensure uniform quality. In this way, Fang is a good product suitable for process specifications and labels, and can be used in chemical engineering.

Preparation Method

This product is made of 2 - Amino - 4,8 - Naphthalenedisulfonic Acid. The method is as follows: Prepare naphthalene as raw material, sulfonate it with sulfuric acid, and obtain naphthalene sulfonic acid. After a specific temperature and pressure, add ammonia and other reagents to aminate it, then this product is made. The reaction steps are rigorous, and the temperature and reagent dosage need to be precisely controlled. When sulfonating, the concentration of sulfuric acid and the reaction time are all critical. When aminating, the ratio of ammonia and the reaction environment should not be ignored. And a monitoring mechanism is set up. After each step, the purity and composition of the product are carefully tested. If it does not meet the standard, adjust it immediately to ensure the quality of 2 - Amino - 4,8 - Naphthalenedisulfonic Acid. This method can stabilize its yield and obtain high-quality products.

Chemical Reactions & Modifications

2 - Amino - 4,8 - Naphthalenedisulfonic Acid, it is also important to transform the product. Its modification and reverse modification is the focus of our research.
In the past, this compound was often encountered. Its anti-oxidation is harsh, and it is not easy to obtain it. The anti-oxidation rate is slow, and the anti-oxidation rate is not ideal.
However, in the present, we have studied its theory and improved the anti-oxidation method. The best catalytic, high-efficiency, and high-efficiency components make the anti-oxidation speed and effective.
In addition, we have also made some progress in its modification. It is used in the field of chemical modification to increase its stability and solubility, such as dyes and substances. Therefore, through unremitting research, we can make this thing into a great use and benefit the world.

Synonyms & Product Names

2-Amino-4,8-naphthalene disulfonic acid has the same name and trade name
There are chemical substances today, the name is 2-amino-4,8-naphthalene disulfonic acid, and its same name and trade name are of great value. This substance is in the industry and has various names.
Those with the same name all refer to this thing, but the expression may be different. Or because of its structural characteristics, or because of the different synthesis methods, many different names are derived. Its trade names also have different names due to the marketing strategies of merchants and the different uses of products.
For example, in a chemical engineering book, this substance once had a trade name, which was specially designed for application in a specific field to highlight its unique properties in this field. It is also known as the same name, which is common in the academic community and is convenient for academic communication and research.
Looking at the same name and trade name of this substance, it can be seen that in the field of chemistry, although the appellation is complex, it has its own internal logic and development context. Examining its details is of great benefit to chemical production and academic research.

Safety & Operational Standards

2-Amino-4,8-naphthalenedisulfonic acid product safety and operating specifications
Fu 2-amino-4,8-naphthalenedisulfonic acid is an important product in chemical research. In its experimental operation and production process, safety and standardization are of paramount importance.
The first word is safety. This substance has a certain chemical activity, so when storing, it must be stored in a dry, cool and well-ventilated place. Keep away from fire and heat sources to prevent unexpected reactions. And its packaging should be tightly closed to avoid excessive contact with air and moisture, resulting in quality changes. When taking it, the experimenter must wear suitable protective equipment, such as gloves, goggles, protective clothing, etc., to avoid direct contact with the skin, eyes, etc. If it is accidentally touched, rinse with plenty of water as soon as possible, and seek medical treatment if necessary.
Times and operating specifications. Before the experiment, carefully check the instruments used to ensure that they are clean, non-destructive and can operate normally. When weighing, measure accurately, according to the amount required for the experiment, not more or less. During the reaction process, strictly control the temperature, control the time and stirring speed. Reaction waste should not be discarded at will, and should be collected in accordance with regulations to meet the requirements of environmental protection.
Furthermore, the production site should also have a complete ventilation system to minimize the concentration of harmful substances in the air. Operators must undergo professional training and be familiar with the operation process and emergency response methods.
In short, the safety and operation standards of 2-amino-4,8-naphthalene disulfonic acid are related to the success or failure of the experiment, the safety of personnel and the safety of the environment. Only by adhering to these standards can we ensure the smooth progress of chemical research and production.

Application Area

2-Amino-4,8-naphthalene disulfonic acid is also a chemical compound. Its use can be used in many fields.
In the field of dyeing, this compound can be used as a dye in dyes. Its special manufacture can achieve the same reaction as dye synthesis, helping to create a dye with good color and fastness, so that the dyeing effect of the dye is good.
It also has a certain value in terms of research and development. It may be able to provide specific elements for the development of molecules, helping to create new technologies and improve the world's diseases.
In the context of material science, it can be used in the development of some functional materials. Due to its high-quality properties, it can improve the specific properties of materials, such as improving the adsorption and qualitative properties of materials.
Where this is the case, the important position of 2-amino-4,8-naphthalene disulfonic acid in the field of multi-purpose applications is also an indispensable part of the research industry.

Research & Development

The industry of chemical industry is changing with each passing day, and the research of substances is related to the world's transportation. Today there is 2 - Amino - 4,8 - Naphthalenedisulfonic Acid, and I devote myself to the research.
At the beginning, analyze its structure, explore its properties, and clarify its physical and chemical characteristics. This is the basis of research. Then, examine its production method, find a way to optimize, and seek ways to increase yield and reduce its cost. Or improve the process, or choose new raw materials, in order to achieve high efficiency.
Thinking about the use of this product, it can be used in various fields. In the dyeing and weaving industry, it can be used as a dye intermediate to add color and color; in the pharmaceutical chemical industry, or the key to the synthesis of new drugs. Then seek its expansion and wide application.
I should make unremitting efforts to study this product, in the hope that the research of this product will contribute to the prosperity of the chemical industry and the wide use of the world, and promote its rapid development.

Toxicity Research

The nature of tasting and smelling things is related to use and existence. Now in 2 - Amino - 4, 8 - Naphthalenedisulfonic Acid, the study of toxicology is particularly important.
View its chemical properties, specific structure, or involved in poison risk. In the body of the living soul, or there is an intrusion. If it enters the body, it is afraid of messing up the internal organs and damaging the luck of qi and blood. According to various experimental views, the cells are affected by it, and the metabolism is methodical and the vitality is reduced.
It is also considered in the environment, or the pollution of water and soil, and the biological chain is also affected by it. Although the amount is small, it adds up to a lot, and the troubles are endless.
Therefore, in 2 - Amino - 4,8 - Naphthalenedisulfonic the toxicology of Acid, it should be deeply studied, careful to use it, and strictly control it to protect the safety of life and the environment.

Future Prospects

I tasted the product of 2 - Amino - 4,8 - Naphthalenedisulfonic Acid. This product has great potential in the field of chemical industry. Looking at the present, although it has been useful, there is still a long way to go in the future.
In the future, I hope to be able to purify the method, go to the next level, reduce its impurities, improve its purity, and make the quality better. And in the application of expansion, hope to explore new fields. Or can be used for high-tech materials, such as photoelectric materials, to help its performance jump.
Furthermore, I hope to study its combination with other things to create multiple new products to adapt to market changes. Although the road ahead is long, I believe that with time, this product will be able to shine, occupy an important seat in the industrial forest, and contribute to the future.

Frequently Asked Questions

2-Amino-4, what is the main use of 8-Naphthalenedisulfonic Acid?

2-Amino-4,8-naphthalene disulfonic acid, this substance has a wide range of uses and has its own impact in various fields of chemical industry.
First, it plays a significant role in the preparation of dyes. Its structure is unique and can be used as a key intermediate. Based on this, through a series of exquisite chemical reactions, a variety of colorful and fastness dyes can be derived. The dyes are widely used in fabric dyeing, giving fabrics a colorful color, and after years and washing, the color is still bright.
Second, it is also of great value in the synthesis of medicine. Its chemical properties can help build a specific drug molecular structure. With the help of its participation in the reaction, researchers can synthesize compounds with unique pharmacological activities, opening up the possibility for the development of new drugs, which is expected to contribute to human health and well-being.
Third, it can also emerge in the field of some high-end material manufacturing. By virtue of its own properties, it can improve the properties of materials, such as enhancing the stability of materials, enhancing their special optical or electrical properties, etc., and promote the development and progress of advanced materials.
All of these, 2-amino-4,8-naphthalene disulfonic acid plays an indispensable role in many industries such as chemical industry, medicine, and materials, and promotes technological innovation and industrial progress in various fields.

2-Amino-4, what are the physical properties of 8-Naphthalenedisulfonic Acid

2-Amino-4,8-naphthalene disulfonic acid, this is an organic compound. Its physical properties are quite important and of great significance in the chemical industry and other fields.
Looking at its appearance, under room temperature and pressure, it often shows a white to light yellow crystalline powder state. This state is easy to store and transport, and is also conducive to subsequent processing and use.
In terms of solubility, it exhibits a certain solubility in water. Due to the presence of sulfonic acid groups, it is hydrophilic and can be moderately dissolved in water, but the degree of solubility is affected by temperature and other factors. Heating usually promotes its solubility, and this property needs to be paid attention to in solution preparation and reaction operations.
Melting point is also a key physical property. Its melting point is in a specific temperature range, which is crucial for identification and purity detection. If the purity of the substance is high, the melting point is closer to the theoretical value; if it contains impurities, the melting point may decrease and the melting range becomes wider.
In addition, the density of 2-amino-4,8-naphthalene disulfonic acid is fixed. In related process design, such as reactor size planning and material transportation calculation, density data is indispensable, which is related to the precise control and optimization of the production process.
Furthermore, its stability also needs to be considered. It is relatively stable under conventional conditions, but in special chemical environments such as strong oxidants, strong acids and bases, or chemical reactions occur, resulting in structural and property changes. Therefore, when storing and using, it is necessary to avoid such adverse conditions and maintain its stability.

2-Amino-4, what are the chemical properties of 8-Naphthalenedisulfonic Acid

2-Amino-4,8-naphthalene disulfonic acid is a kind of organic compound. It has the following chemical properties:
First, it is acidic. This compound contains a sulfonic acid group (-SO-H), which is highly acidic and can dissociate hydrogen ions (H-H) in water, so its aqueous solution is acidic and can be neutralized with bases. If it reacts with sodium hydroxide (NaOH), the hydrogen ion of the sulfonic acid group combines with the hydroxide ion (OH) to form a corresponding sodium salt. This reaction follows the law of acid-base neutralization.
Second, it is hydrophilic. The sulfonic acid group is a strong hydrophilic group and can form hydrogen bonds with water molecules. This property makes 2-amino-4,8-naphthalenedisulfonic acid easily soluble in water and has good solubility in water, which is conducive to its participation in various reactions in aqueous solution systems.
Third, the reactivity of amino groups. The amino group (-NH2O) in the molecule has a certain alkalinity and can accept protons (H 🥰). At the same time, amino groups can undergo a variety of chemical reactions, such as acylation with acyl halides, acid anhydrides, etc., to form amide compounds; condensation reactions with aldides and ketones to form nitrogen-containing heterocycles or other compounds.
Fourth, the reactivity of aromatic rings. Naphthalene ring, as an important part of this compound, has aromatic properties. Under appropriate conditions, electrophilic substitution reactions can occur, such as halogenation, nitrification, sulfonation, etc. Due to the different electron cloud densities at different positions on the naphthalene ring, the position selectivity of the substitution reaction is also different. Under specific conditions, the amino group and the sulfonic acid group will have a localization effect on the position of the electrophilic substitution reaction on the naphthalene ring, which affects the formation of the main products of the reaction.
In summary, 2-amino-4,8-naphthalene disulfonic acid has various chemical properties due to the characteristics of the functional groups and aromatic rings it contains, and has important applications in organic synthesis and other fields.

2-Amino-4, what is the production method of 8-Naphthalenedisulfonic Acid?

The preparation method of 2-amino-4,8-naphthalene disulfonic acid, although the ancient book "Tiangong Kaiwu" did not speak bluntly, it was deduced by the method of chemical industry, and the approximation can be obtained.
First, naphthalene is used as the starting material. Naphthalene has an aromatic ring structure and is active in nature. When naphthalene is sulfonated, a sulfonic acid group can be introduced. Usually concentrated sulfuric acid or fuming sulfuric acid is used as the sulfonating agent, and naphthalene reacts with the sulfonating agent at a suitable temperature and time. Temperature control is crucial, because different temperatures will cause different positions for the introduction of sulfonic acid groups. Generally, during initial sulfonation, the temperature is slightly lower, about 150-160 ° C, and the sulfonic acid group is mostly introduced into the α position of the naphthalene ring.
The initial product of naphthalene sulfonic acid is obtained, and then nitrified, and the mixed acid of concentrated nitric acid and concentrated sulfuric acid is used as the nitrifying agent. The ratio of mixed acid, reaction temperature and time need to be accurately controlled. Nitrification reaction can introduce nitro groups on the naphthalene ring, and the position of nitro groups is also affected by conditions. After nitrification, a naphthalene derivative containing nitro and sulfonic acid groups is obtained.
Then, the nitro group is reduced to amino group. The commonly used method uses iron powder and hydrochloric acid as the reducing agent and reacts at an appropriate temperature. The interaction of iron powder and hydrochloric acid produces new hydrogen, which gradually reduces the nitro group to amino group. After this reduction, a naphthalene product containing amino groups and sulfonic acid groups is obtained.
However, the position of the sulfonic acid group in the product may need to be adjusted, Under certain conditions, such as high temperature and the presence of a specific catalyst, the sulfonic acid group can migrate on the naphthalene ring to reach the position of the sulfonic acid group required by the target product 2-amino-4,8-naphthalene disulfonic acid. Finally, the impurities are removed by separation and purification methods, such as crystallization, recrystallization, extraction, etc., to obtain pure 2-amino-4,8-naphthalene disulfonic acid.

2-Amino-4, 8-Naphthalenedisulfonic Acid What to pay attention to when storing and transporting

2-Amino-4,8-naphthalene disulfonic acid, when storing and transporting, pay attention to many matters.
Its properties are chemical substances, and when stored, the first environment is dry. If this substance encounters moisture, or causes changes in its properties, or even deteriorates, it will affect its subsequent use. Therefore, it needs to be placed in a dry and ventilated place, away from water sources and places with high humidity.
Temperature is also critical. It should be avoided in places with high temperatures, which are unstable due to high temperatures or chemical reactions. Generally speaking, it should be stored in a cool place to ensure the stability of its chemical properties.
Furthermore, the storage container must be properly selected. Corrosion-resistant materials should be selected because of their acidic properties. Ordinary materials may be corroded, and there is a risk of leakage.
When transporting, caution should also be taken. The packaging must be solid and reliable to prevent damage to the packaging due to collision and vibration. The transportation vehicle should also be clean and free of other chemical residues to avoid adverse reactions.
And the transportation personnel should be familiar with its characteristics and emergency treatment methods. If there is a leak on the way, it can be handled quickly and properly to minimize the harm. In short, the storage and transportation of 2-amino-4,8-naphthalene disulfonic acid must be treated strictly in all aspects to ensure the safety of personnel and the integrity of materials.