7-Amino-1-Naphthol-3-Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	531596
Chemical Formula	C10H9NO4S
Molar Mass	239.25 g/mol
Appearance	Light - colored crystals or powder
Solubility In Water	Slightly soluble
Ph	Acidic
Melting Point	175 - 180 °C
Stability	Stable under normal conditions
Odor	Odorless
Reactivity	Reactive with strong oxidizing agents

Packing & Storage

Packing	25 - kg bags of 7 - Amino - 1 - Naphthol - 3 - Sulfonic Acid, well - sealed for chemical protection.
Storage	7 - Amino - 1 - Naphthol - 3 - Sulfonic Acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, open flames, and strong oxidizing agents. Store in a tightly - sealed container to prevent moisture absorption and potential degradation. Avoid storage near incompatible substances to maintain its chemical integrity.
Shipping	7 - Amino - 1 - Naphthol - 3 - Sulfonic Acid is shipped in well - sealed, corrosion - resistant containers. It adheres to strict chemical transportation regulations to ensure safe transit, avoiding exposure to moisture, heat, and incompatible substances.

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General Information

Historical Development

The origin of the product of 7-amino-1-naphthol-3-sulfonic acid can also be traced. In the past, the chemists worked hard on the road of material exploration. When they first met this product, they felt that its nature was special, so they began to study it. At that time, the conditions were difficult, but the public was determined to persevere. After years of study and trial, they gradually understood its nature. From the initial ignorance and cognition to the detailed observation of its physical and chemical properties, the process method has also been gradually refined. From the crude at the beginning, it has gradually become refined and pure. After years of delay, the hearts of countless craftsmen have coagulated here, making this product stand out in the field of chemical industry, with a wide range of uses. It has extraordinary effects in dyeing, weaving, medicine and other industries, and has eventually become an important member of today's chemical substance lineage.

Product Overview

7 - Amino - 1 - Naphthol - 3 - Sulfonic Acid is a unique compound. Its unique properties are white to slightly yellow crystalline powder with specific physical and chemical properties. In the field of chemistry, it has a wide range of uses and is often used as a key intermediate for dyes and pigments.
Preparation of this compound requires a delicate chemical reaction process. With specific naphthalene series raw materials, it can only be obtained after multiple rigorous reactions, such as sulfonation, nitrification, reduction, etc. Each step requires strict reaction conditions, and temperature, pH, and reactant ratio must be precisely controlled to achieve ideal yield and purity.
However, in the production and use process, it is also necessary to pay attention to safety and environmental protection. Because some of the reaction reagents may be corrosive and toxic, strict safety procedures must be followed during operation, and waste must be properly disposed of to avoid harm to the environment and people. In this way, it is necessary to make good use of this compound and contribute to the development of the chemical industry.

Physical & Chemical Properties

7-Amino-1-naphthol-3-sulfonic acid is an important substance for chemical research. Its physical properties are unique, and it is often in the shape of a powder. Its color is white or slightly yellowish, delicate and uniform. Its taste is light, and it is difficult to leave a significant impression on the sense of smell. When it comes to chemical properties, it has certain reactivity. When it encounters alkali, it can generate corresponding salts, and can participate in many organic synthesis reactions in specific media. The amino group, hydroxyl group and sulfonic acid group interact in its structure, giving it unique chemical behavior. Under suitable conditions, amino group can react with acyl group, hydroxyl group can also participate in the common reaction of phenols, and sulfonic acid group affects its solubility and ionization characteristics. This substance is widely used in many fields and has great significance for the development of chemical research and related industries.

Technical Specifications & Labeling

The process specification and identification (product parameters) of 7-amino-1-naphthol-3-sulfonic acid. For this product, the process specification shall specify the steps, materials and operation requirements. Prepare the raw materials first, mix them according to the precise ratio, control the temperature in a suitable range, and react for a specific time. After the reaction is completed, separate and purify the method to obtain a pure product.
In terms of identification, the product packaging declaration shall be named "7-amino-1-naphthol-3-sulfonic acid", detailing the chemical formula, molecular weight and other parameters. A warning label is attached to indicate safety precautions. In case of risk of this product, follow the guidelines to ensure that the use and storage are safe, and the process and identification are correct to ensure product compliance and availability.

Preparation Method

The preparation method of 7-amino-1-naphthol-3-sulfonic acid is related to the raw materials and production process, reaction steps, and catalytic mechanism. The raw materials need to be carefully selected, such as naphthalene compounds, as the basis for the reaction. In the production process, naphthalene is first used as the starting point. After sulfonation, sulfonic acid groups are introduced to obtain naphthalene sulfonic acid intermediates.
The reaction steps are rigorous. After sulfonation, it is nitrified under specific conditions to precisely locate the nitro group. Then it is reduced to form an amino group. The reaction conditions at each step need to be strictly controlled, and temperature, pH, and time are all key.
The catalytic mechanism cannot be ignored. Suitable catalysts can promote the reaction to proceed efficiently, reduce the activation energy and speed up the reaction rate. Metal salts or organic bases are selected as catalysts, and the reaction is precisely prepared according to the reaction characteristics, so that each step can be advanced in an orderly manner, and finally a high-purity 7-amino-1-naphthol-3-sulfonic acid product is obtained.

Chemical Reactions & Modifications

In recent times, chemistry has been refined, and the study of 7 - Amino - 1 - Naphthol - 3 - Sulfonic Acid has become more and more in-depth. The chemical reaction of this compound was mostly based on conventional methods at first, but the effect was not ideal.
Scholars have worked hard to observe its structure and study its characteristics, hoping to improve the reaction method. In the past, the reaction often encountered obstacles, the yield was not high, and the purity of the product was also lacking.
After repeated tests, the check point of its chemical activity was understood, and the reaction conditions were regulated in detail. Variable temperature, more solvents, and new catalysts eventually led to improved methods. The reaction rate is accelerated, the yield is greatly improved, and the purity of the product is also good.
From this point of view, in chemical research, the old method cannot be adhered to, and when the material characteristics are taken into account, the courage to innovate can lead to the optimization of chemical reactions and better products for various applications.

Synonyms & Product Names

7-Amino-1-naphthol-3-sulfonic acid, which has many aliases. Or 7-amino-1-naphthol-3-sulfonic acid is its scientific name, and among the common names, it is called 3-sulfonic acid-7-amino-1-naphthol. Its trade name is also diverse, and it is commonly known in the industry as "gamma acid", which is a widely known trade name.
gamma acid has a wide range of uses and is an indispensable raw material in dyes, pigments and other industries. Due to its unique chemical properties, it can participate in many organic synthesis reactions, resulting in dyes and pigments with bright colors and excellent performance. From this perspective, the alias and trade name of 7-amino-1-naphthol-3-sulfonic acid reflect its important position and wide application in the chemical industry.

Safety & Operational Standards

7-Amino-1-naphthol-3-sulfonic acid is an important substance in chemical research. When it is produced and used, safety and operating standards are of paramount importance and cannot be ignored.
Practitioners must first know its characteristics when handling this substance. 7-Amino-1-naphthol-3-sulfonic acid has specific chemical properties, and its understanding is insufficient, which can easily lead to safety hazards. When operating, it is necessary to strictly follow the established procedures. If the substance is used, it should be accurately measured to prevent excess or insufficient, affecting the experimental or production results, and to avoid danger due to improper dosage.
Storage is also strictly regulated. It should be placed in a dry, cool and well-ventilated place, away from fire and heat sources. Due to its characteristics of flammable and easy to react with certain substances, improper storage or serious accidents such as fire and explosion.
In experimental or production sites, safety facilities are essential. Such as fire extinguishers, eye washers, emergency spray devices, etc., are readily available and readily available. In case of emergencies, they can be responded to in time to reduce damage.
During operation, protective measures must be in place. Practitioners need to wear professional protective clothing, protective gloves, and goggles to prevent the substance from contacting the skin and eyes and causing harm.
Furthermore, waste disposal should not be rushed. Wastes containing 7-amino-1-naphthol-3-sulfonic acid should be properly disposed of according to specific environmental requirements, and must not be discarded at will to avoid polluting the environment.
In short, the safety and operation specifications of 7-amino-1-naphthol-3-sulfonic acid need to be paid full attention to in order to ensure personnel safety, orderly production and environmental worry.

Application Area

7-Amino-1-naphthol-3-sulfonic acid, this substance has a wide range of uses. In the field of printing and dyeing, it is often used as an intermediary of azo dyes, which can give fabrics brilliant color, bright and lasting color. In the pharmaceutical and chemical industry, it also has its use, or it is a raw material for the synthesis of specific drugs, helping the development of medicine, and seeking well-being for health. In the field of analytical chemistry, it can be used as a reagent for qualitative and quantitative analysis of substances, accurately determining the properties and content of components. Its application in various fields is like the starry night, adding luster to industry and scientific research, and promoting the progress of various industries. It is an indispensable chemical material.

Research & Development

The rise of modern chemistry is becoming more and more clear in the exploration of the nature of all things. Today there is 7 - Amino - 1 - Naphthol - 3 - Sulfonic Acid, and our chemists study it.
Its research is also the first to explore its structure, analyze its molecular composition, and know the arrangement and combination of atoms. This is the basis for understanding its properties. It also studies its reaction and observes its changes under various conditions, such as temperature, pressure, and catalyst. After repeated experiments, a lot of data is obtained to clarify its reaction law.
As for development, this substance has great potential in the fields of dyes, medicine, etc. In dyes, it can give a bright and lasting color; in medicine, it can be used as a raw material for new medicines. Our generation should make unremitting efforts to explore its more uses, so as to promote the progress of chemistry and be used by the world.

Toxicity Research

Toxicity Study of 7 - Amino - 1 - Naphthol - 3 - Sulfonic Acid
Fu 7 - Amino - 1 - Naphthol - 3 - Sulfonic Acid This substance is widely used in the field of chemical industry. However, the study of its toxicity is crucial.
Now carefully observe its properties, and in experiments, test it on all kinds of creatures. Or enter the body, observe its behavior and physiological changes. Observe its surface, see hair loss, slow movement, and listlessness. Exploring it, the damage to the organs gradually appears, the detoxification of the liver, and the filtration of the kidneys are all disturbed by it.
Also study its shadow in the environment. Scattered in water and soil, the growth of vegetation is hindered, the root system does not develop, and the leaves are yellow and withered. And its nature is stable, it is difficult to disappear for a long time, and it accumulates in the ecology, which causes more and more harm.
Therefore, in order to maintain the well-being of life and protect the ecology, the toxicity of 7 - Amino - 1 - Naphthol - 3 - Sulfonic Acid should be carefully studied and strictly controlled, and it should not be ignored.

Future Prospects

I try to study this 7 - Amino - 1 - Naphthol - 3 - Sulfonic Acid, and think about its future development. This material is very different and has great use in various fields. Looking at the present, in the field of chemical industry, it is an essential material for making dyes and medicine, and its effect is outstanding.
Looking to the future, science and technology are new, or it may emerge in the creation of new materials. With its unique chemistry, it may help to develop special fibers and smart materials, so that the material performance is extraordinary. In medicine, it is also expected to lay the foundation for new therapies and break the dilemma of difficult diseases.
With the improvement of analytical technology, its understanding will be deeper, or new characteristics and new uses will be discovered. This material future exhibition, such as Pengju Jiuxiao, has infinite potential and will definitely add luster to the world and benefit all parties.

Frequently Asked Questions

What are the main uses of 7-Amino-1-Naphthol-3-Sulfonic Acid?

7-Amino-1-naphthol-3-sulfonic acid has a wide range of main uses. In the dye industry, it is a key intermediate. It can be used for printing and dyeing of fabrics through a series of reactions to obtain many bright-colored and high-performance dyes, which make fabrics colorful and have good color fastness. Whether it is natural fiber fabrics such as cotton and linen silk or chemical fiber fabrics, it can achieve ideal dyeing results.
In the field of medicine, it also has important functions. It can provide the basic structure for the synthesis of specific drugs, and with its special chemical structure, participate in the construction of drug molecules, endow drugs with specific pharmacological activities, and play a key role in the treatment of certain diseases.
In the field of chemical analysis, due to its unique chemical properties, it can be used as an analytical reagent. It can react with specific metal ions and other substances, and achieve qualitative or quantitative analysis of certain substances through phenomena such as color change or precipitation formation, helping scientific researchers to accurately determine the composition and content of samples.
In addition, in the pigment preparation industry, 7-amino-1-naphthol-3-sulfonic acid is also involved, contributing to the quality improvement and performance optimization of related products, and has a position that cannot be ignored in many industrial and scientific research fields.

What are the physical properties of 7-Amino-1-Naphthol-3-Sulfonic Acid?

7-Amino-1-naphthol-3-sulfonic acid is one of the organic compounds. Its physical properties are quite characteristic, let me tell them one by one.
The appearance of this substance is often white to light gray powder, and the fine particles are polymerized with each other, which is delicate in appearance. The powder has a light texture and is smooth to the touch when rubbed in the hand, just like soft fine sand.
Its solubility is also considerable. In water, 7-amino-1-naphthol-3-sulfonic acid has a certain solubility, but the solubility is not very high. When placed in water, some of the substances are slowly dispersed, and the water molecules interact with the compound molecules to make the solution gradually have a certain color and transparency. In organic solvents, such as ethanol and acetone, its solubility is better than that in water. In ethanol, it can dissolve quickly to form a uniform and transparent solution, which is due to the combination of its molecular structure and the force between the molecules of the organic solvent, which makes the two easy to mix with each other.
In terms of melting point, 7-amino-1-naphthol-3-sulfonic acid has a specific melting point value. When it is heated, the temperature gradually rises, and when it approaches the melting point, the substance begins to transform from solid to liquid. Near the melting point, solid and liquid coexist, the internal structure of the substance changes significantly, and the intermolecular forces are readjusted. This melting point characteristic is crucial for its purification and identification in industrial production and laboratory operations.
In addition, the density of the substance is also one of its physical properties. Its density determines the mass of the substance contained in a unit volume, and the density factor needs to be taken into account when mixing with other substances or performing separation operations. Under different conditions, its density may vary slightly, but it is generally within a specific range. The physical properties of 7-amino-1-naphthol-3-sulfonic acid are rich and diverse, and these properties are interrelated, which together affect its application and operation in various fields.

What are the chemical properties of 7-Amino-1-Naphthol-3-Sulfonic Acid?

7-Amino-1-naphthol-3-sulfonic acid has unique chemical properties and can be investigated. This substance has the general nature of acid. Because it contains a sulfonic acid group, it can dissociate hydrogen ions in water and is acidic. It can neutralize and react with bases to generate corresponding salts and water.
Its amino group also has characteristics. The nitrogen atom of the amino group has a lone pair of electrons, which makes it alkaline and can react with acids to form salts. In this compound, the amino group and the sulfonic acid group interact, causing its acidity and basicity to be different from that of a single acid or amine.
Furthermore, the presence of naphthalene rings endows its conjugated system with certain stability and special electron cloud distribution. Naphthalene rings can undergo electrophilic substitution reactions, such as halogenation, nitrification, sulfonation, etc. Due to the positioning effect of amino groups and sulfonic acid groups, substitution reactions mostly occur at specific positions of naphthalene rings.
In addition, hydroxyl groups are also important functional groups. Hydroxyl groups have strong electronegativity of oxygen atoms and high polarity of hydrogen-oxygen bonds, which can participate in the formation of hydrogen bonds. This substance can interact with other molecules or itself through hydrogen bonds, affecting its physical and chemical properties, such as solubility, melting point, boiling point, etc. The chemical properties of 7-amino-1-naphthol-3-sulfonic acid are rich and complex because it contains a variety of functional groups, and it has important uses in many fields such as organic synthesis and dye preparation.

What is the production method of 7-Amino-1-Naphthol-3-Sulfonic Acid?

7-Amino-1-naphthol-3-sulfonic acid is prepared by the ancient chemical industry, and the following methods are followed.
First, 1-naphthamine-3-sulfonic acid is used as the starting material, and the clever diazotization reaction is carried out. In a specific reactor, an appropriate amount of sodium nitrite and acid are added to control its temperature and acidity, so that 1-naphthamine-3-sulfonic acid is ingeniously converted into diazonium salt. This process requires fine control of conditions. Due to high or low temperature and improper acidity, the reaction can be biased.
Then, the diazonium salt is reduced. Add a suitable reducing agent to the kettle, such as sodium sulfite, to convert the diazo group into an amino group, and finally obtain 7-amino-1-naphthol-3-sulfonic acid. In the meantime, it is necessary to pay attention to the process of the reaction, fine-tune the conditions according to its phenomenon, and ensure the smooth reaction.
There are also other related naphthalene compounds as starting materials. First, through a series of reactions, the structure is gradually transformed, and then through key sulfonation, amination, hydroxylation and other steps. When sulfonating, select an appropriate sulfonating agent, such as concentrated sulfuric acid or fuming sulfuric acid, and introduce a sulfonic acid group; for amination, use a suitable aminating agent to add an amino group; for hydroxylation, also find an appropriate method, add a hydroxyl group in a suitable position, and through multi-step reaction, carefully adjust, synthesize 7-amino-1-naphthol-3-sulfonic acid. Each step of the reaction is related to factors such as material ratio, reaction temperature, time, etc. Chemists need to consider carefully to obtain high-quality products.

7-Amino-1-Naphthol-3-Sulfonic Acid in storage and transportation

7-Amino-1-naphthol-3-sulfonic acid is a chemical substance, and care must be taken when storing and transporting it.
First, when storing, it should be placed in a cool, dry and well-ventilated place. This is because of its nature or fear of moisture and heat. If it is placed in a high temperature and humid place, it may cause deterioration. For example, the warehouse should be kept away from heat sources and water sources to prevent it from losing its inherent nature due to temperature and humidity.
Second, the packaging must be tight. The substance may be corrosive or sensitive to the environment. If there is an omission in the packaging, it will not only damage its own quality, but also endanger the safety of the surrounding environment and personnel. Therefore, it should be packed in a special container and tightly sealed to prevent the possibility of leakage.
Third, during transportation, specific regulations must be followed. The transport vehicle should be clean and stain-free, and equipped with corresponding protective and emergency equipment. In case of emergency, such as leakage, it can be properly disposed of in time. At the same time, the transport personnel should also be familiar with its characteristics and emergency methods to prevent accidents.
Fourth, it should be stored and transported separately with other substances. Due to its unique chemical properties or reaction with other substances, it should not be mixed with oxidants, acids, alkalis, etc., to avoid violent reactions and cause danger.
In short, in the storage and transportation of 7-amino-1-naphthol-3-sulfonic acid, everything must be done in accordance with regulations, and no slack can be done to ensure safety.