6-Amino-4-Naphthol-2-Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	388666
Chemical Formula	C10H9NO4S
Molar Mass	239.25 g/mol
Appearance	Light pink to brownish crystals
Solubility In Water	Slightly soluble
Melting Point	Approximately 285 - 290 °C
Acidic Nature	It is an acidic compound
Pka Value	Varies depending on solution conditions
Odor	Odorless or very faint odor
Stability	Stable under normal conditions
Hazard	May cause skin and eye irritation

Packing & Storage

Packing	25 - kg bags for 6 - Amino - 4 - Naphthol - 2 - Sulfonic Acid packaging.
Storage	6 - Amino - 4 - Naphthol - 2 - Sulfonic Acid should be stored in a cool, dry, well - ventilated area, away from heat sources and open flames. Keep it in a tightly - sealed container to prevent moisture absorption and contact with air, which could lead to degradation. Store it separately from oxidizing agents and incompatible substances to avoid potential reactions.
Shipping	6 - Amino - 4 - Naphthol - 2 - Sulfonic Acid is shipped in well - sealed containers. It must be transported in accordance with hazardous chemical regulations, ensuring proper handling to prevent spills and environmental contamination.

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General Information

Historical Development

6-Amino-4-naphthol-2-sulfonic acid is also a product of chemistry. Its origin, early chemists studied the properties of substances, one by one, and found some discoveries. At that time, various sages were in the way of chemistry, seeking up and down, and after years of testing and analysis, they obtained this compound.
At the beginning, the preparation was difficult, and the output was very small, only rare in the laboratory. After the technology was gradually advanced, various craftsmen improved the process, and the output began to increase. Its use has also gradually expanded, and it shines brightly in the industry of dyes, and the color of dyes is gorgeous. In the field of medicine, there are also involved, helping to cure diseases.
As the years go by, the more people who study this thing, the more detailed they know about its properties and uses. It has been obtained accidentally since the beginning, and is widely used today. It is a clear proof of the progress of chemistry and the crystallization of all wise minds.

Product Overview

6-Amino-4-naphthol-2-sulfonic acid is an important chemical product. Its color is light yellow and it is crystalline. It is slightly soluble in water, but it dissolves well in alkali.
This product has made outstanding contributions to the dye industry. It is often the key raw material for the manufacture of various dyes. The dyes made are gorgeous in color and excellent in fastness. It is widely used in fabric dyeing, printing and many other fields.
Furthermore, in the field of pharmaceutical synthesis, it also has its own influence, laying the foundation for the preparation of specific drugs. Its chemical properties are active. Due to the synergy of amino groups, phenolic hydroxyl groups and sulfonic acid groups, it can participate in multiple chemical reactions. Through ingenious synthesis paths, a series of compounds with special properties can be derived.
Looking at its preparation, naphthalene is often used as the initial raw material, and this product is obtained after several fine processes such as nitrification, reduction, and sulfonation. During preparation, the reaction conditions are strictly controlled, and the purity and yield of the product are affected by slight differences in temperature, pH, etc.

Physical & Chemical Properties

6-Amino-4-naphthol-2-sulfonic acid, this material property is also special. Its color may be light, or yellowish, and it is qualitative and palpable. Its properties are soluble and soluble in water, but it also varies with temperature, and its dissolution is smooth when the temperature is high.
Its chemical properties are active, and it should be used when it encounters alkali. New quality is generated, and it also responds to acid, and the changes are subtle. In the environment of light and heat, its quality changes slightly, or color shifts, or sexual changes, all must be careful.
This substance is also widely used in the field of industry and technology. It can be used as a dye material, a color aid, and also has its own function in the process of pharmaceutical research, which is related to health. Therefore, the study of its physical properties is of great benefit to the good use and the progress of industry, and cannot be ignored.

Technical Specifications & Labeling

Technical Specifications and Labeling of 6-Amino-4-Naphthol-2-Sulfonic Acid (Product Parameters)
The technical specifications of this 6-Amino-4-Naphthol-2-Sulfonic Acid are related to properties and purity. Looking at its color, it is often white to yellowish crystalline powder. Purity is crucial, and it can only be praised when it is tested with accurate methods to ensure that it meets specific standards.
In terms of identification, the product parameters need to be detailed. The name must be "6-Amino-4-Naphthol-2-Sulfonic Acid", which cannot be wrong. And should note its chemical formula, molecular weight and other key information to help the reader understand its essence. On the packaging, it should also be clearly marked, so that the user can see at a glance, without the risk of misuse, so as to meet the essence of the technical specifications and labels of this product.

Preparation Method

The preparation of 6-amino-4-naphthol-2-sulfonic acid is related to the raw materials and production process, reaction steps and catalytic mechanism. The raw materials are commonly used in naphthalene compounds, which are sulfonated, nitrified, reduced and other steps.
First take naphthalene, sulfonate with sulfuric acid to obtain naphthalene sulfonic acid derivatives. Next, nitrate under appropriate conditions and introduce nitro groups. Then, with suitable reducing agents, nitro is converted into amino groups. The reaction steps require precise control of temperature, time and ratio of reactants. When sulfonated, the temperature should be moderate, and if it is too high, side reactions will occur; the same is true for nitrification, which requires strict control of temperature and reaction time.
In terms of catalytic mechanism, each step may use a specific catalyst. Sulfuric acid can be used as catalyst and sulfonating agent for sulfonation; in nitration, the mixed system of nitric acid and sulfuric acid may play a catalytic role to promote the smooth reaction. Each step of the reaction is interrelated, and each step is precisely operated to obtain high-purity 6-amino-4-naphthol-2-sulfonic acid products.

Chemical Reactions & Modifications

Reverse modification of 6-amino-4-naphthol-2-sulfonic acid is the key to the research. Its reverse process has the value of investigation. Under the general reverse conditions, 6-amino-4-naphthol-2-sulfonic acid often shows different reverse patterns. Or due to the interaction of amino groups, naphthol groups and sulfonic acid groups in the molecule, the reverse pathways are many.
If you want to improve the properties of this compound, you can use the method of chemical modification. If you introduce specific functionalities or change the anti-environmental factors, the physical and chemical properties of 6-amino-4-naphthol-2-sulfonic acid can be improved. Or increase its solubility, or change its characterization, which is the direction that researchers strive for. In this way, it can be used in engineering, scientific research and other fields to make it more effective.

Synonyms & Product Names

6-Amino-4-naphthol-2-sulfonic acid, the synonym and trade name of this substance, is quite important. There are many synonyms, such as p-amino-2-naphthol-6-sulfonic acid. As for the trade name, there are also many kinds. This compound is widely used in the chemical industry and is often the key raw material for the synthesis of dyes and pigments. From it, many colorful dyes can be prepared. The variety of synonyms and trade names reflects the wide application and depth of research on this substance in the chemical industry. The industry needs to specify its various titles in detail, so that everything can be smooth in trading and research and development, so as not to be confused, so as to ensure the orderly progress of chemical production and scientific research.

Safety & Operational Standards

6-Amino-4-naphthol-2-sulfonic acid, this chemical substance is crucial for safety and operation standards.
When taking it, you must clean your hands and face, and wear appropriate protective equipment, such as gloves, goggles, etc., to prevent it from touching the skin and eyes. The place where it is placed must be dry and well ventilated, away from fire and heat sources, and must not be mixed with oxidants, alkalis, etc., to prevent accidental changes.
When operating, the environment should be bright and well ventilated. If it is used as a raw material to participate in the reaction, it should be operated according to the precise ratio and procedures, and there should be no slight difference. When stirring, the rate should be stable, and the temperature control needs to be accurate to prevent overreaction.
If you accidentally touch the skin, quickly rinse with a lot of water, followed by fine soap. If it enters your eyes, immediately open your eyelids, rinse with flowing water or normal saline, and seek medical attention. If it leaks, immediately isolate the scene, evacuate unrelated people, clean it up with protective equipment, and do not let it flow into the waterway.
Only by following these safety and operating standards can you ensure the smooth progress of experiments or production, avoid danger, and protect people and things.

Application Area

6-Amino-4-naphthol-2-sulfonic acid, this compound has a wide range of uses. In the field of dyes, it can be used as a key intermediate to help dyeers prepare many bright colors, such as scarlet and purple, to add color to the fabric and make it dazzling. In the field of medicine, or in the development of drugs for specific diseases, its unique chemical properties provide the possibility for the composition ratio of drugs. It is also used in the preparation of pigments, making the color under the painter's brush more vivid and lasting, and painting exquisite pictures. Furthermore, in some chemical synthesis reactions, it acts as a bridge, guiding the reaction to advance in a specific direction, promoting the birth of new materials, which are used by Baigong and benefit the world. It shows its indispensable value in various application fields.

Research & Development

In recent times, chemistry has flourished, and all kinds of substances have been studied more and more deeply. This 6-Amino-4-Naphthol-2-Sulfonic Acid has been studied by us for many years.
At the beginning, its properties and production methods were mostly unknown, and everyone thought hard and tried it repeatedly. Or in the selection of raw materials, careful consideration; or in the regulation of conditions, fine study. After months of hardships, I have to know a thing or two.
Later, in the field of application, I also explored it widely. To make its efficacy unfold and benefit the world. Or used in the dyeing industry to make the color bright and lasting; or used in the pharmaceutical industry, hoping that it is beneficial to health.
We know that the road of research is long, so we must forge ahead and persevere. We hope to be able to explore and develop it, and make new achievements, and contribute a little to the academic community and the world, so as to promote the effectiveness of this substance and achieve the best state.

Toxicity Research

Study on the toxicity of 6-amino-4-naphthol-2-sulfonic acid
The taste of substances is related to people's livelihood. Today, there is 6-amino-4-naphthol-2-sulfonic acid, which is quite useful in various industrial fields. However, its toxicity cannot be ignored.
Look at its quality, its color and shape are different, and it is used in chemical industry as raw material, or involved in printing and dyeing, pharmaceuticals. Although its function is obvious, the toxicity is hidden in it.
According to experiments, entering the body will harm the viscera and damage qi and blood. Its poison or disturb the cells, and the order of metabolism is chaotic. If the skin touches it, it may cause rash and itching; if the breath is inhaled, the lungs and organs are invaded. If it is involved for a long time, the disease will gradually appear, and even life will be endangered.
Therefore, in the use of 6-amino-4-naphthol-2-sulfonic acid, one should be cautious. It is the responsibility of our generation of chemical researchers to study protective methods and establish regulations to ensure the well-being of everyone, and not to make toxicity a disaster to the world.

Future Prospects

Guanfu 6 - Amino - 4 - Naphthol - 2 - Sulfonic Acid Although this product is not yet in full bloom today, its future prospects are really imaginative.
In today's world, science and technology are changing day by day, and the field of chemistry is also moving forward at a rapid pace. This compound is unique, either in the research and development of medicine, adding bricks to the search for a cure for diseases; or in the creation of materials, making new materials stand out. With time, researchers will be able to explore its secrets and explore more potential.
With the development of the chemical industry, the demand for it may increase day by day. Based on it, various new products have been derived and applied to a vast industry. The future scene is like a splendid picture, slowly spreading out. Although there may be thorns in the road ahead, but adhering to the heart of exploration, it is determined to usher in its bright future, and the prospect is considerable.

Frequently Asked Questions

What are the main uses of 6-Amino-4-Naphthol-2-Sulfonic Acid?

6-Amino-4-naphthol-2-sulfonic acid, this is an organic compound. It has a wide range of uses and plays a significant role in the dye industry.
First, it is a key intermediate in the synthesis of azo dyes. After diazotization, coupled with various polyphenols and amine compounds, a wide variety of azo dyes with brilliant colors can be prepared. These dyes are widely used in the field of textile printing and dyeing. After dyeing fabrics, they have bright colors and good color fastness, which can meet the needs of the textile industry for various colors.
Second, it also has important uses in leather dyeing. It can make leather present a variety of colors, enhance the aesthetics and commercial value of leather products, and the dyed leather has uniform color and excellent texture.
Third, it also has its uses in the field of analytical chemistry. It can be used as an analytical reagent for qualitative and quantitative analysis of metal ions. By reacting with specific metal ions to form complexes with specific colors, accurate detection and determination of metal ions can be achieved according to color changes and related properties.
Furthermore, in the pharmaceutical chemical industry, although it is not the main raw material, it may be used as a starting material or intermediate in the synthesis process of some drugs, providing basic compounds for the research and development and production of new drugs, and promoting innovation and development in the pharmaceutical field.
In summary, 6-amino-4-naphthol-2-sulfonic acid plays an important role in many industrial fields and contributes significantly to the progress of related industries.

What are the physical properties of 6-Amino-4-Naphthol-2-Sulfonic Acid?

6-Amino-4-naphthol-2-sulfonic acid, its state is mostly solid at room temperature, and it is usually white to light gray powder. This form is conducive to storage and transportation.
When it comes to solubility, it has a certain solubility in water, but in organic solvents such as ethanol and ether, the solubility is relatively limited. This property makes it unique in chemical reactions or separation operations of aqueous systems.
Its melting point is in a specific range, and accurate determination is crucial for purity identification. When heated near the melting point, the substance will undergo a phase transition from solid to liquid.
The substance has a certain acidity, because the sulfonic acid group in its structure can partially ionize hydrogen ions in the solution, thus exhibiting acidic characteristics. This acidity can generate corresponding salt compounds when reacting with alkali substances.
In addition, there is a conjugated system in the 6-amino-4-naphthol-2-sulfonic acid molecule, which has a significant impact on its optical properties, causing it to exhibit absorption and emission characteristics under specific wavelengths of light, which may have applications in some optical analysis fields. Due to the presence of amino groups and phenolic hydroxyl groups,

can participate in a variety of organic reactions, such as condensation reactions with aldose, or acylation reactions with anhydrides, etc., and has great potential in the field of organic synthetic chemistry.

What are the chemical properties of 6-Amino-4-Naphthol-2-Sulfonic Acid?

6-Amino-4-naphthol-2-sulfonic acid is one of the organic compounds. It has many unique chemical properties.
Looking at its acidity, this compound is acidic because it contains a sulfonic acid group (-SO-H). The sulfonic acid group can dissociate hydrogen ions (H-H) in water, making it acidic in aqueous solution, and can neutralize with bases to form corresponding salts. This property is of great significance in many chemical reactions and industrial applications. For example, in the synthesis of some dyes, its acidity can be used to react with other basic substances to achieve the construction of specific structures.
When it comes to its solubility, generally speaking, 6-amino-4-naphthol-2-sulfonic acid has a certain solubility in water due to the hydrophilicity of the sulfonic acid group. However, its solubility is also affected by factors such as temperature and pH of the solution. When the temperature increases, the solubility will usually increase; and in different pH solutions, the solubility will also vary due to the change of the form of the molecule.
In terms of its reactivity, the structure of amino (-NH2O) and naphthol gives the compound a variety of reactions. Amino groups have certain nucleophilic properties and can participate in nucleophilic substitution reactions, such as reacting with electrophilic reagents such as halogenated hydrocarbons to form new carbon-nitrogen bonds. The hydroxyl group (OH) of the naphthol part can also participate in the reaction, such as esterification reaction under appropriate conditions, and reaction with acid anhydride or acid chloride to form corresponding ester compounds. In addition, due to the conjugate system of its naphthalene ring structure, aromatic electrophilic substitution reactions can occur, such as halogenation, nitrification and other reactions. Substituents are introduced at specific positions of the naphthalene ring to prepare derivatives with more complex structures, which are used in dyes, medicine and many other fields.
The chemical properties of this compound are rich and diverse, and it plays a key role in organic synthesis and related industrial production. With in-depth understanding and clever application of its properties, the preparation and application of many valuable compounds can be achieved.

What is the production method of 6-Amino-4-Naphthol-2-Sulfonic Acid?

6-Amino-4-naphthol-2-sulfonic acid. The preparation method of 6-amino-4-naphthol-2-sulfonic acid follows a specific process path in the past.
Often specific naphthalene series compounds are used as the initial raw materials, such as appropriately substituted naphthalene. First, it is put in a suitable reaction medium and goes through the step of sulfonation. This sulfonation process requires precise regulation of the temperature, time of the reaction, and the type and dosage of the sulfonation reagent used. Usually, common sulfonating agents such as sulfuric acid are used. In a specific temperature range, generally ranging from tens of degrees Celsius to more than 100 degrees Celsius, the sulfonic acid group is introduced at a specific position in the naphthalene ring to achieve a preliminary chemical transformation.
This reaction often requires the selection of appropriate amination reagents, such as certain amine compounds, and with the help of catalysts, the amino groups are smoothly integrated into the molecular structure. The reaction conditions are also very critical, and temperature, pH, etc. need to be carefully controlled to ensure that the amino groups are precisely integrated at the desired position.
Furthermore, the necessary reduction steps are carried out. With a suitable reducing agent, specific functional groups in the molecule are reduced in a specific reaction environment, and finally 6-amino-4-naphthol-2-sulfonic acid is formed. During each step of the reaction, proper separation and purification operations are often required to ensure the purity and quality of the product. The reaction yield and product quality of each step are all related to the final preparation effect.

6-Amino-4-Naphthol-2-Sulfonic Acid in storage and transportation

6-Amino-4-naphthol-2-sulfonic acid, during storage and transportation, many matters need to be paid attention to. This is a chemical substance, and its nature may be active, so when storing, the first environment is dry. Moisture can easily cause it to deteriorate, causing its chemical properties to change, affecting future use. It is necessary to choose a dry and well-ventilated place, away from water sources and humid places, just like being placed in a dry place in a pavilion, protected from water vapor.
Furthermore, temperature is also critical. High temperature or cause it to undergo chemical reactions, which will damage its quality. It should be stored in a cool place, such as a cellar, with moderate temperature to keep it stable. And it must be separated from other chemicals, because it may react with certain substances and cause danger.
When transporting, the packaging must be sturdy. To prevent it from leaking due to collisions and bumps on the way. Choose thick, impact-resistant packaging materials and properly wrap them, such as in a tough wooden box filled with soft and protective materials. And the transporter must have professional knowledge and be familiar with the characteristics of this material. In case of emergencies, they can properly deal with it. The driving road should also be smooth and avoid excessive vibration to ensure that 6-amino-4-naphthol-2-sulfonic acid arrives at the destination safely. In this way, the storage and transportation are kept safe.