2-Amino-1-Naphthalenesulfonic Acid

Lingxian Chemical

Specifications

HS Code	394682
Chemical Formula	C10H9NO3S
Molar Mass	223.25 g/mol
Appearance	white to light yellow crystalline powder
Solubility In Water	slightly soluble
Melting Point	about 185 - 188 °C
Density	1.48 g/cm³
Ph	acidic
Odor	odorless
Stability	stable under normal conditions
Sensitivity	sensitive to light

Packing & Storage

Packing	1 kg of 2 - Amino - 1 - Naphthalenesulfonic Acid packaged in a sealed, corrosion - resistant bag.
Storage	2 - Amino - 1 - Naphthalenesulfonic Acid should be stored in a cool, dry, well - ventilated area, away from heat sources and direct sunlight. 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 chemical reactions.
Shipping	2 - Amino - 1 - Naphthalenesulfonic Acid is shipped in well - sealed containers, compliant with chemical transport regulations. Packaging safeguards against spills and degradation, ensuring safe transit to the destination.

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General Information

Historical Development

2-Amino-1-naphthalenesulfonic acid is also used in chemical products. Tracing back to its source, chemists studied substances at an early age, and gradually made this achievement. The preparation was difficult at the beginning, the process was cumbersome, and the yield was not abundant. However, the sages worked tirelessly, and they studied it over the years. With the advance of science and technology, the process became better, the yield gradually increased, and the application was also wide. In the dye industry, it is a key raw material, and the dye is beautiful in color and will not fade for a long time. In the field of medicine, it also has its merits, helping to synthesize various drugs. Looking at its development, from the initial difficulties to the present prosperity, it all depends on the diligence of scholars and the innovation of science and technology. The process of this chemical is a clear proof of human exploration

Product Overview

2-Amino-1-naphthalenesulfonic acid is an organic compound. Its shape or crystalline powder, often nearly white in color. This compound has important uses in dyes, medicine and many other fields. In the dye industry, it can be used to synthesize a variety of brightly colored dye raw materials, which can help dyes have a bright and long-lasting color. In the field of medicine, it may participate in the preparation of specific drugs and contribute greatly to the research and development of medicine. The preparation of this compound follows a specific chemical path and is formed through multiple steps of reaction. It is necessary to precisely control the reaction conditions, such as temperature, pH, etc., to obtain high-purity products. However, the production process should also pay attention to safety and environmental protection to ensure that the process is green and sustainable.

Physical & Chemical Properties

2 - Amino - 1 - Naphthalenesulfonic Acid, this material also has unique physicochemical properties. Looking at its physical state, it is often crystalline, white or slightly light yellow in color, like a fine powder, it feels dry to the touch. Its melting point is quite high, it has a certain thermal stability, and it melts gradually under heat and is not easy to accelerate.
When it comes to chemical properties, because it contains amino groups and sulfonic acid groups, it is characteristic of both sexes. Amino groups can form salts with acids, and sulfonic acid groups can be acidic and neutralized with bases. In the field of organic synthesis, it is a key raw material, and various compounds can be derived with its active groups. Due to its special structure, it often plays an important role in the preparation of dyes and medicines, laying the foundation for many chemical reactions and assisting in the creation of new products.

Technical Specifications & Labeling

Technical procedures and labeling of 2-amino-1-naphthalenesulfonic acid (commodity parameters)
2-amino-1-naphthalenesulfonic acid, the preparation method requires strict procedures. First take the naphthalene as the group, through the sulfonation technique, get 1-naphthalenesulfonic acid. After the saltpeter and sulfuric acid are mixed, slowly drip in, and the temperature is properly controlled, so that the nitro group enters the naphthalene ring to form 2-nitro-1-naphthalenesulfonic acid. Then iron filings and hydrochloric acid are used as agents to carry out the reduction method, and the nitro group is turned into an amino group, and then this product is obtained.
Its logo is also important. On the packaging, the name of "2-Amino-1-naphthalenesulfonic acid" must be stated, and the molecular formula C H NO S is listed, and the molecular weight is 223.25. Another note, if this product is corrosive, it will hurt the skin or eyes when it touches, wear protective clothing, goggles and gloves when using it. Store in a cool, dry place, avoid fire, heat, and prevent mixing with strong oxidants to ensure safety.

Preparation Method

The method of preparing 2-amino-1-naphthalenesulfonic acid is related to the raw material and production process, reaction steps and catalytic mechanism.
First take 1-naphthalene amine as raw material, which is the key starting material. Concentrated sulfuric acid is used as the sulfonating agent, and the two are put into the reactor in an appropriate proportion. The temperature is controlled in a specific range, and the initial temperature should not be too high to prevent side reactions. Gradually heat up to a suitable point to allow the sulfonation reaction to proceed fully.
The reaction steps are advanced in an orderly manner. First slowly mix the raw materials and stir evenly to promote the molecules to fully contact. Then heat up at a rate and observe the reaction process closely
In the catalytic mechanism, concentrated sulfuric acid not only acts as a sulfonating agent, but also has catalytic effect, reducing the activation energy of the reaction and accelerating the reaction. After this series of operations, the product of 2-amino-1-naphthalenesulfonic acid can be obtained, and then the high-purity product can be obtained through separation, purification and other processes.

Chemical Reactions & Modifications

Recently, the 2 - Amino - 1 - Naphthalenesulfonic Acid has been studied and analyzed, and I feel deeply that the chemistry is wonderful and the changes are endless. Its chemical reaction is quite unique, and it shows different states under different conditions.
In the past, it was often viewed in the traditional way, but now it is carefully studied, and many reactions seem to be optimized, and its properties can also be improved. The reaction of this substance may be affected by various factors such as temperature and solvent.
To make the performance of this substance better, the reaction conditions should be carefully adjusted. If the temperature control is accurate, the selection of a suitable solvent may make the reaction more perfect, and the quality and quantity of the product can be improved. And by exploring its structure in detail, new reaction paths may be discovered, so that the properties can be improved for more uses and greater effectiveness in various fields.

Synonyms & Product Names

The 2024 Nobel Prize in Chemistry has been awarded to three scientists in recognition of their contributions to the "discovery and synthesis of quantum dots." Quantum dots are semiconductor crystals at the nanoscale with unique optical and electrical properties that have a wide range of applications in display, lighting, biomedical imaging, and other fields.
The discovery and synthesis of quantum dots has benefited from scientists' in-depth research in semiconductor physics and chemistry. In the 1980s, Louis E. Brus, Alexei I. Ekimov, and Carolyn R. Bertozzi) independently discovered the quantum confinement effect of quantum dots and prepared high-quality quantum dots by chemical synthesis. Since then, the research of quantum dots has developed rapidly and become a hot spot in the field of materials science and nanotechnology.
The unique properties of quantum dots make them show great application potential in many fields. In the display field, quantum dot TVs can achieve higher color saturation and contrast by combining quantum dots with backlight, providing a more realistic visual experience. In the field of lighting, quantum dot Light Emitting Diode (QLED) has the advantages of high efficiency, energy saving and long life, and is expected to become the mainstream of next-generation lighting technology. In the field of biomedical imaging, quantum dots can be used as fluorescent probes to label and track biomolecules to achieve high-resolution imaging of cells and tissues in living organisms.
The discovery and synthesis of quantum dots has not only promoted the development of materials science and nanotechnology, but also brought many innovative applications and technological breakthroughs to human society. With the continuous deepening of research, quantum dots are expected to play an important role in more fields, providing new ideas and methods for solving global challenges such as energy, environment, and health.

Safety & Operational Standards

2 - Amino - 1 - Naphthalenesulfonic Acid Safety and Operating Specifications
For those who use 2 - Amino - 1 - Naphthalenesulfonic Acid, it is also an important substance for chemical research. To ensure safety and operation compliance, all specifications should be clearly stated.
It should also be stored in a cool, dry and well ventilated place. Keep away from fire and heat sources to prevent accidents. Do not store with oxidants or alkalis to avoid chemical reactions and cause dangerous situations.
When taking it, the experimenter must wear appropriate protective clothing, protective gloves and goggles. If you accidentally touch the skin, rinse quickly with a lot of water, and still feel unwell, seek medical treatment. If it enters the eye, rinse quickly with flowing water or normal saline, and then seek medical attention.
The operation process must be done in the fume hood. Avoid dust generation and inhalation to prevent damage to the respiratory system. The utensils used must be clean and dry to prevent impurities from affecting their properties.
Disposal should be in accordance with relevant regulations. It should not be discarded at will, but should be collected in a centralized manner and handed over to professional institutions for treatment to avoid polluting the environment.
In general, in the research and use of 2-Amino-1-Naphthalenesulfonic Acid, safety and operating standards are the top priority. Only by following this standard can we ensure the safety of personnel, the smooth experimentation, and the safety of the environment.

Application Area

2-Amino-1-naphthalenesulfonic acid is also used in chemical compounds. Its use is especially important for dyes. It can be used in general pigments and dyes to show a beautiful color. It is also used in the research of compounds, or in the synthesis of raw materials, to assist in the formulation of drugs, and to treat diseases. And in some chemical analysis, it can be used for identification of the properties and compositions of substances. Its use in chemical engineering, such as transportation and transportation, to promote the development of dyes and other materials, and to benefit people's livelihood.

Research & Development

Recently researched in the system of 2 - Amino - 1 - Naphthalenesulfonic Acid. This substance has a wide range of uses and is indispensable in the dyeing and weaving industry. In the beginning, it was not easy to make, and there was very little to get, and the price was also high.
My colleagues and I have been thinking hard and trying new methods many times. Looking at the ancient recipes and referring to the current techniques, we have carefully studied the temperature and timing of the reaction, and the preparation of various agents. After months of hard work, we finally get something.
The new method can increase its production, and the quality is also better than before. It is a blessing that the cost comes down and the efficiency increases. In the future, we should study it more intensively and hope that it will be applied more widely in industry, so as to benefit everyone and promote the prosperity of the industry. This is the wish of our researchers.

Toxicity Research

The study of tasting and smelling material properties is related to the importance of people's livelihood. Now look at 2 - Amino - 1 - Naphthalenesulfonic Acid, the investigation of its toxicity cannot be ignored.
If you want to understand its toxicity, you should carefully observe its response to various things. Or test it on insects, observe the change of their behavior and the difference of life; or try it on plants and trees, observe its state of prosperity and decline, and the growth and decline of vitality.
And think about its harm to the human body, or enter through the mouth and nose, and damage the ability of the viscera; or seep through the skin, messing with the circulation of qi and blood. Therefore, when studying its toxicity, we must proceed with caution, analyze its mechanism, and clarify its harm, so as to prevent its disaster from unfolding, and ensure the well-being of the public. Those who study in the future can be poor and use it for the world, avoid its harm and promote its benefits.

Future Prospects

I have tried to study this chemical substance of 2 - Amino - 1 - Naphthalenesulfonic Acid. Looking at the present, although I have already gained something, I still have great dreams in the future.
In the future world, I hope it can be used in the field of medicine and can be a good medicine for treating diseases. Or it can accurately cure various diseases, so that patients can recover their health as soon as possible. In the way of materials, I hope it will become the foundation of new materials, endow things with specificity, and make utensils more tough and delicate.
In addition, in the protection of the environment, I also hope it can do something. Or it can help cleanse the environment, turn harm into profit, and return the world to peace. I firmly believe that with time and unremitting research, 2 - Amino - 1 - Naphthalenesulfonic Acid will shine brightly, bring endless benefits to the world, and achieve future glory.

Frequently Asked Questions

What are the main uses of 2-Amino-1-Naphthalenesulfonic Acid?

2-Amino-1-naphthalenesulfonic acid has a wide range of main uses. In the dye industry, it can be called a crucial raw material. Cover because it can be used to synthesize a variety of colorful and fastness dyes. Such as azo dyes, which are made by a series of delicate chemical reactions with the help of the special chemical structure of 2-amino-1-naphthalenesulfonic acid. Such dyes are widely used in the field of fabric dyeing, which can give fabrics a variety of colors, and in daily environments such as sun exposure and washing, the color is not easy to fade, which greatly meets the dual needs of the world for the beauty and durability of fabrics.
Furthermore, in the field of medicine and chemical industry, 2-amino-1-naphthalenesulfonic acid also has a non-negligible role. In the synthesis of some drugs, this substance is required as a key intermediate. Through specific chemical modifications and reactions, pharmaceutical ingredients with specific pharmacological activities can be prepared, which can be used for the treatment and prevention of diseases, and contribute to human health.
In addition, in some organic synthesis reactions, 2-amino-1-naphthalenesulfonic acid can also act as a catalyst or auxiliary reagent. With its unique chemical properties, it can accelerate the reaction process, improve the reaction efficiency, and promote the smoother progress of organic synthesis reactions, enabling chemists to successfully prepare various complex and specialized organic compounds, thus promoting the continuous development of the field of organic chemistry.

What are the physical properties of 2-Amino-1-Naphthalenesulfonic Acid?

2-Amino-1-naphthalenesulfonic acid is a kind of organic compound. Its physical properties are quite unique, let me tell you one by one.
Looking at its appearance, it is often in the state of white to light yellow crystalline powder. This compound has a certain solubility in water, but the degree of solubility is also affected by many factors such as temperature. Generally speaking, when the temperature increases, its solubility in water will also increase.
As for the melting point, the melting point of 2-amino-1-naphthalenesulfonic acid is relatively high, between about 180 ° C and 185 ° C. The melting point is the critical temperature at which a substance changes from solid to liquid. This property is crucial for identifying and purifying the compound.
Furthermore, its density is also an important physical property. Although the exact density value will vary slightly depending on the measurement conditions, it is generally within a certain range. The determination of density is helpful to understand its distribution and behavior in different media.
In addition, 2-amino-1-naphthalenesulfonic acid has different degrees of solubility in organic solvents such as ethanol and acetone. In ethanol, the solubility may be relatively high, while in acetone, the solubility may be different. This difference in solubility provides a variety of options and possibilities for its chemical synthesis and separation and purification process.
In summary, the physical properties of 2-amino-1-naphthalenesulfonic acid, such as appearance, solubility, melting point, density, etc., are of indispensable significance in many fields such as chemical research and industrial production, providing a key basis for related operations and applications.

What are the chemical properties of 2-Amino-1-Naphthalenesulfonic Acid?

2-Amino-1-naphthalenesulfonic acid, this is an organic compound. It is acidic and can ionize hydrogen ions in water because it contains sulfonic acid groups (-SO-H), so it can neutralize and react with bases to form corresponding salts.
In terms of its physical properties, it is usually in a solid form, but the specific properties may vary depending on the purity and crystallization conditions. In terms of solubility, it has a certain solubility in water, and with the increase of temperature, the solubility may increase.
In terms of chemical reactivity, amino groups (-NH2O) can participate in many reactions. For example, it can react with acylated halides, acid anhydrides, etc. to form amides. The amino group also has nucleophilic properties and can undergo nucleophilic substitution reactions with electrophilic reagents such as halogenated hydrocarbons.
The sulfonic acid group not only endows it with acidic properties, but also participates in the reverse reaction of sulfonation reactions. In addition, the naphthalene ring structure of the compound makes it have certain aromaticity, which can occur typical reactions of aromatic compounds such as electrophilic substitution reactions. The substituents mainly enter the specific position of the naphthalene ring and are affected by the localization effect of the amino group and the sulfonic acid group.
It is widely used in dyes, medicine and other fields. In the dye industry, it is often used as an intermediate in the synthesis of dyes. By modifying its amino group and sulfonic acid group and other functional groups, dyes In the field of medicine, some of its derivatives may have specific biological activities, providing an important foundation for drug development.

What is the production method of 2-Amino-1-Naphthalenesulfonic Acid?

2-Amino-1-naphthalenesulfonic acid, its preparation method is based on chemical synthesis in the past.
One method is to use 1-naphthalamine as the starting material and prepare it by sulfonation reaction. Place 1-naphthalamine in an appropriate reaction vessel, add sulfonating reagents such as sulfuric acid, and control the reaction temperature, time, and material ratio. Usually, temperature control is very critical, and the initial temperature should not be too high to prevent side reactions from breeding. For example, at a lower temperature, sulfuric acid and 1-naphthaleneamine are mixed moderately, and then slowly heated to make the sulfonation reaction proceed in an orderly manner. Through this reaction, the sulfonic acid group can be introduced into the specific position of 1-naphthalamine molecule to form 2-amino-1-naphthalenesulfonic acid. However, this process needs to pay attention to the strong corrosiveness of sulfuric acid, and the operation must be cautious.
Another method uses naphthalene as the starting material. Naphthalene is first nitrified to introduce nitro groups to obtain nitronaphthalene. Naphthalene is then reduced to amino naphthalene, and finally through the sulfonation step, the target product is prepared. This route step is slightly complicated, but the raw material naphthalene has a wide range of sources and may have advantages in cost. When nitrifying, it is necessary to choose a suitable nitrifying agent, such as mixed acid (mixture of nitric acid and sulfuric acid), according to the properties of naphthalene and the expected reaction, the composition of the mixed acid, the reaction temperature and other conditions, in order to obtain the ideal nitronaphthalene isomer. When reducing nitro groups, common methods include iron powder reduction, catalytic hydrogenation, etc. In the sulfonation stage, the relevant conditions are controlled according to the previous method, so that the sulfonic acid group can be precisely positioned.
In addition, other compounds containing naphthalene structures are used as starting materials to prepare 2-amino-1-naphthalenesulfonic acid through a series of reactions, but the principles are not separated from the scope of chemical transformation, group introduction and modification. Each method has its own advantages and disadvantages, and needs to be comprehensively selected according to actual production needs, cost considerations, product quality requirements and other factors.

2-Amino-1-Naphthalenesulfonic precautions in the use of Acid

2-Amino-1-naphthalenesulfonic acid, an important organic compound, is widely used in industry and scientific research. However, when using, many matters need to be paid attention to.
First safety protection. This compound has certain toxicity and irritation, or causes damage to the human body. When taking it, be sure to wear suitable protective equipment, such as gloves, goggles and protective clothing, to prevent skin contact and splashing into the eyes. In case of inadvertent contact, rinse with plenty of water immediately and seek medical attention according to the specific situation.
Times and operating environment. Work in a well-ventilated place to avoid the accumulation of dust or steam in the air to prevent inhalation from causing health problems. At the same time, the operating site should be kept away from fire and heat sources, because it is flammable, in case of open flame, hot topic or can cause combustion and explosion.
The other is the storage point. It should be stored in a cool, dry and well-ventilated place, away from oxidants and acids. Contact or chemical reaction with it may cause deterioration or cause danger. Storage containers must be tightly sealed to prevent moisture decomposition and volatilization.
Repeated use is the norm. During use, strictly follow the operating procedures and precisely control the dosage and reaction conditions. If chemical reactions are involved, fully understand their reaction characteristics and possible side reactions, and take countermeasures in advance.
End and waste disposal. Waste after use must not be discarded at will, and should be properly disposed of in accordance with relevant environmental regulations to avoid pollution to the environment.
In general, when using 2-amino-1-naphthalenesulfonic acid, safety and standardized operation are of paramount importance, so as to ensure the safety of personnel, the environment is not harmed, and the smooth progress of experiments or production.