2-Aminonaphthalene-1-Sulphonic Acid

Lingxian Chemical

Specifications

HS Code	439301
Chemical Formula	C10H9NO3S
Molar Mass	223.25 g/mol
Appearance	white to light yellow crystalline powder
Solubility In Water	slightly soluble
Solubility In Organic Solvents	soluble in ethanol, ether
Melting Point	168 - 172 °C
Pka Value	around 3.5 (approximate value for acidic group)
Density	1.46 g/cm³ (approximate)
Odor	odorless (usually)
Stability	stable under normal conditions, but may react with strong oxidizing agents

Packing & Storage

Packing	2 - Aminonaphthalene - 1 - Sulphonic Acid: 10 - kg bags, well - sealed for safe storage and transport.
Storage	2 - Aminonaphthalene - 1 - Sulphonic Acid should be stored in a cool, dry, well - ventilated area. Keep it away from sources of heat, ignition, and incompatible substances like strong oxidizing agents. Store in tightly sealed containers to prevent moisture absorption and contamination, ensuring the chemical remains stable and its integrity is maintained.
Shipping	2 - Aminonaphthalene - 1 - Sulphonic Acid is shipped in sealed, corrosion - resistant containers. These are carefully packed to prevent leakage, transported via approved chemical - hauling methods, ensuring compliance with safety and regulatory norms.

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General Information

Historical Development

2-Aminonaphthalene-1-sulfonic acid is also a product of the chemical industry. It originated when the chemical technology of the past was gradually improving. At that time, craftsmen and scholars worked tirelessly on the technique of chemical synthesis.
At the beginning, exploring the method of preparing this compound was a thorn in the road. After repeated attempts and mistakes, many people have obtained some essentials. With the passage of time and the advancement of science and technology, the method of preparation has become more and more refined. The complicated and inefficient method in the past has gradually been replaced by the simple and efficient one.
Its use has also changed with the times. Since its inception, it has been a novelty in the laboratory, but later it has made its mark in the dyeing, weaving, pharmaceutical and other industries. Thanks to the efforts of researchers of all generations, this product has been able to develop its capabilities in the historical evolution and occupy a place in the chemical industry. It has become an indispensable material for many industries.

Product Overview

2-Aminonaphthalene-1-sulfonic acid is also a chemical substance. Its shape or crystalline powder, often white in color. This substance has a wide range of uses in the chemical industry.
In the process of dye synthesis, 2-aminonaphthalene-1-sulfonic acid is the key raw material. Based on it, a variety of colorful dyes can be prepared, which are used in fabric dyeing to make fabrics bright and lasting.
In the field of pharmaceutical research, it also has potential value. Some studies have shown that its chemical structure may be related to certain drug activities, providing ideas for the development of new drugs.
However, the preparation of this product requires a precise process. Temperature control and the proportion of ingredients are all key. A slight error may cause the product to be impure, which will affect its subsequent application. And in the production process, it is necessary to pay attention to environmental protection and properly dispose of waste to avoid environmental harm.

Physical & Chemical Properties

2-Aminonaphthalene-1-sulfonic acid, the physical and chemical properties of this substance are related to our research. Its properties are white or white-like, and it is crystalline. Its solubility in water is moderate, slightly soluble in cold water, slightly soluble in hot water.
In terms of its chemical properties, it is acidic and can form salts with bases. Because it contains amino groups and sulfonic acid groups, it can involve many chemical reactions. Amino groups are nucleophilic and can react with electrophilic reagents such as acyl halides and aldose. Sulfonic acid groups make them water-soluble and ionic.
Its melting point, boiling point and other physical constants are also key. Determination of melting point can help determine its purity. The boiling point data is of great significance in the separation and purification process. These physicochemical properties lay the foundation for in-depth analysis and rational application of 2-aminonaphthalene-1-sulfonic acid.

Technical Specifications & Labeling

Nowadays, there is 2-aminonaphthalene-1-sulfonic acid. In the preparation and testing of industry, technical specifications and identification (product parameters) are the key. Its preparation needs to follow a precise process, and the material ratio, reaction temperature and time are all fixed. If the material is mixed, it should be in an appropriate proportion to make the reaction proceed smoothly. The reaction temperature needs to be controlled in an appropriate range. Too high or too low can cause the product to be impure or the yield to be low.
In terms of testing and marking, it is related to parameters such as purity and impurity content. The purity needs to meet specific standards, and the impurity content should be strictly limited. With sophisticated instruments and methods, various indicators should be measured in detail to ensure that the product conforms to the established specifications. Only by accurately grasping technical specifications and labels can we produce high-quality 2-aminonaphthalene-1-sulfonic acid products, which are well used in various fields of chemical industry.

Preparation Method

To make a product of 2-aminonaphthalene-1-sulfonic acid, the method is necessary. Prepare the raw materials first, naphthalene sulfonic acid and ammonia water as the base. In the process of making, the naphthalene sulfonic acid is placed in the device, and ammonia water is slowly injected into it. The temperature is controlled and appropriate, and it should not be overdone. At the time of this reaction, it must be slow and orderly to prevent it from becoming chaotic. When it is finished, the method of separation is used to make the product pure. After separation, it is refined again to remove impurities. The utensils you rely on should be clean and suitable, and can be prepared for this. Temperature control devices and mixing devices are all important. In this way, pure 2-aminonaphthalene-1-sulfonic acid can be obtained, which can be used for various purposes and has its value in industry and scientific research.

Chemical Reactions & Modifications

Regarding the chemical reaction and modification of 2-aminonaphthalene-1-sulfonic acid
Fu 2-aminonaphthalene-1-sulfonic acid, in the field of chemistry, the reaction and modification are quite profound. Looking at the reaction, it often involves the change of substitution, and the amino group and sulfonic acid group can interact with various reagents. In this reaction, it is necessary to pay attention to the conditions, temperature, pH difference, can cause the product to be different.
As for the modification, it is designed to increase its characteristics. Or change its solubility to make it more easily dispersed in water or organic solvents; or change its stability to meet the needs of different environments. Modification method, often by chemical modification, adding groups to the molecule.
In this way, through delicate chemical reactions and reasonable modifications, 2-aminonaphthalene-1-sulfonic acid can be obtained as a new quality, which can be used more widely in dyes, medicine, etc., to develop the wonders and functions of chemistry.

Synonyms & Product Names

2-Aminonaphthalene-1-Sulphonic Acid, this substance is also known as Turbolic Acid. The study of its synonyms and trade names is very important in chemical research.
Looking back at the past, many parties have discussed the naming of chemical substances. 2-Aminonaphthalene-1-sulphonic acid has gained many nicknames due to its preparation method, use and discoverer. The name of Turbolic Acid is widely used and is often mentioned in industrial production and academic research.
Its synonyms also have many, or due to regional differences, or due to different research perspectives. However, no matter what the name is, it refers to this specific chemical substance. We chemical researchers should carefully examine their synonyms and trade names in order to study and produce everything accurately and avoid confusion, so as to achieve the essence of chemical research.

Safety & Operational Standards

Specifications for safety and operation of 2-aminonaphthalene-1-sulfonic acid
Fu 2-aminonaphthalene-1-sulfonic acid, the product of synthesis, is also related to safety and operation standards, and must not be ignored.
During storage, choose a cool, dry and well-ventilated place. Keep away from heat sources and fires to prevent accidents. Its receptacle must be tightly sealed to avoid contact with air and moisture, which will cause quality changes.
During operation, all kinds of protection are indispensable. Operators wear protective clothing, goggles and gloves to prevent them from touching the body and hurting the eyes. And in the operation room, the ventilation must be smooth, so as not to let the air float inside, which will harm people's health.
In case of leakage, quickly clear the scene. Small amounts of sprinkling should be collected with clean equipment, placed in a specific container, and disposed of properly. If a large amount of leakage is scattered, it should be surrounded and controlled, and it should not spread. Call professional personnel and deal with it according to regulations.
Furthermore, in the chemical reaction of this product, the dosage and conditions should be strictly followed. Do not make it easier at will, in order to prevent the reaction from being disorderly and dangerous.
As for waste, do not dispose of it at will. When following environmental protection regulations, classify and deal with it, and avoid polluting the environment.
In short, the safety and operation specifications of 2-aminonaphthalene-1-sulfonic acid are important for work, environment and people. Only by adhering to this rule can everything go smoothly and be safe.

Application Area

2-Aminonaphthalene-1-sulfonic acid, which has a wide range of uses. In the dyeing and weaving industry, it is often a key raw material for the preparation of dyes. The dyes made by it have bright color and good fastness, which can make the color of fabrics last for a long time.
In the field of medicine, it also has important uses. Through specific chemical transformation, it can become an active ingredient of some drugs, or as a key intermediate in drug synthesis, assisting in drug development and production.
In chemical analysis, 2-aminonaphthalene-1-sulfonic acid can act as an analytical reagent. With its specific chemical properties, it can accurately detect and quantify specific substances, providing strong support for the quality control of scientific research and industrial production. Overall, it plays an indispensable role in many practical fields.

Research & Development

In recent times, chemistry has been refined, and new things have emerged one after another. In today's words, the research and progress of 2-Aminonaphthalene-1-Sulphonic Acid is quite important in the academic community.
At the beginning, scholars have exhausted their rationality, explored its properties, analyzed its structure, and clarified its reaction rules. Although the process is difficult, they are determined and never stop. After years of study, its preparation method has gradually become exquisite. Or change the old technique, or innovate the way, so that the yield is increasing day by day and the quality is better.
It is also widely used, adding brilliant color to the dye industry; in the field of medicine, seeking a cure for diseases. From this perspective, the research and progress of 2 - Aminonaphthalene - 1 - Sulphonic Acid is not only an academic achievement, but also a benefit to people's livelihood. We should continue to pursue the legacy of Sage, study it unremitting, and hope that it will have more outstanding achievements in the future, which will benefit all people.

Toxicity Research

The industry of chemical industry is related to people's livelihood, but the investigation of poisons in it cannot be ignored. Today, take 2-Aminonaphthalene-1-Sulphonic Acid as an example.
The toxicity of this substance is really the focus of scientific research. I study it carefully to observe its properties and observe its reactions. In the context of experiments, see its impact on various objects. Or make microorganisms mutate, or damage vitality.
Ancient books say: "The nature of things cannot be ignored." Toxicity research aims to clarify its harm to prevent people. 2-Aminonaphthalene-1-Sulphonic Acid poison, either through the mouth or through the skin, can cause physical diseases. As a doctor, one should be aware of the danger of this thing, and as a worker, one should avoid its harm.
The study of toxicity is not a temporary achievement. It must be explored with a rigorous heart and a lasting attitude in order to ensure everyone's well-being and smooth business.

Future Prospects

I have dedicated myself to the study of 2 - Aminonaphthalene - 1 - Sulphonic Acid. In today's world, its application is becoming more and more widespread, and it is involved in all fields of chemical industry. Although it has achieved small success now, the future prospects are rich in endless possibilities.
In the future, science and technology will be new, or we can find another way to synthesize it, so that its yield will increase and quality will be better. And in the research and development of new materials, it may be a key factor to help its performance stand out and open up new markets.
Furthermore, the wind of environmental protection is on the rise, and the preparation and application of 2-Aminonaphthalene-1-Sulphonic Acid should also follow the trend, strive to be green and clean, and reduce its burden on the environment. In this way, its future development will be prosperous, contribute to the progress of the world, and develop infinite brilliant prospects.

Frequently Asked Questions

What are the main uses of 2-Aminonaphthalene-1-Sulphonic Acid?

2-Aminonaphthalene-1-sulfonic acid, its shape is crystalline powder, white or yellowish in color. This material has a wide range of uses and is very important in the production of dyes.
One of them is the key raw material for the synthesis of azo dyes. Azo dyes are colorful and are often relied on in the textile printing and dyeing industry and the color dyeing of fabrics. Starting with 2-aminonaphthalene-1-sulfonic acid, through various chemical changes, azo dyes with different structures can be obtained, which can meet the needs of different fabrics and different colors.
Second, it is also used in medicine and chemical industry. It can be used as a pharmaceutical intermediate, although it is not the final state of a drug, it is indispensable for the synthesis of a specific drug. With its special chemical structure, it can obtain compounds with therapeutic effect through reaction.
Third, in the field of photosensitive materials, it can also be seen. The wonder of imaging photosensitive materials, 2-aminonaphthalene-1-sulfonic acid or involved in it, may have the function of regulating the process of photochemical reaction and the quality of imaging.
Fourth, in organic synthetic chemistry, it is a commonly used building block. Due to its structure containing amino and sulfonic acid groups, it can lead to a variety of reactions, providing a starting basis for building complex organic molecular structures, assisting chemists in making novel organic compounds and expanding the boundaries of organic chemistry.

What are the physical properties of 2-Aminonaphthalene-1-Sulphonic Acid?

2-Aminonaphthalene-1-sulfonic acid is a class of organic compounds. This substance has many physical properties and is widely used in the chemical industry.
Looking at its properties, under room temperature and pressure, 2-aminonaphthalene-1-sulfonic acid is often white to light gray powder with fine texture. Its light color makes it easy to observe and distinguish in many chemical operations, and it is not easy to cause significant interference to the hue of subsequent reaction products.
When it comes to solubility, this substance has a certain solubility in water. This property is of great significance, because water is a common and widely used solvent, and many chemical reactions need to be carried out in aqueous solution systems. 2-Aminonaphthalene-1-sulfonic acid is soluble in water, which provides the possibility for it to participate in many aqueous chemical reactions, greatly expanding its selection range in chemical synthesis paths. However, its solubility is not infinite, and the specific value will vary with factors such as temperature. Generally speaking, when the temperature increases, its solubility in water increases. This is due to the intensification of molecular thermal motion, which prompts more solute molecules to disperse among solvent water molecules.
As for the melting point, 2-aminonaphthalene-1-sulfonic acid has a specific melting point value. Melting point is one of the important physical parameters of a substance, reflecting the temperature conditions when the substance changes from solid to liquid. Knowing its melting point is crucial in the control of the chemical production process. For example, in the crystallization and purification process, the appropriate temperature can be set according to the melting point to promote the precipitation of the substance in the form of solid crystals, thereby achieving separation from impurities and improving product purity.
In addition, 2-aminonaphthalene-1-sulfonic acid has good stability in air. However, under specific conditions, such as high temperature, high humidity or exposure to specific chemical substances, chemical reactions may also occur, causing changes in its structure and properties. Therefore, during storage and use, appropriate protective measures should be taken according to its physical properties to ensure that its quality and performance are not affected.

What are the chemical properties of 2-Aminonaphthalene-1-Sulphonic Acid?

2-Aminonaphthalene-1-sulfonic acid is a kind of organic compound. Its properties are common to acids, which can be partially separated and hydrolyzed in water, releasing hydrogen ions and being acidic. This substance has specific chemical activity, and can participate in various chemical reactions due to the existence of amino groups and sulfonic acid groups.
Amino groups can make it participate in nucleophilic substitution reactions, such as reacting with halogenated hydrocarbons to generate corresponding substitution products. The mechanism of this reaction is that the nitrogen atom of the amino group is rich in lone pairs of electrons, which is nucleophilic and can attack the carbon atom of halogenated hydrocarbons. The halogen atom leaves to form a new carbon-nitrogen bond.
The sulfonic acid group makes the compound have good water solubility. Because the sulfonic acid group can form hydrogen bonds with water molecules, it can improve its dispersion in water. And the sulfonic acid group can also participate in the reverse reaction of the sulfonation reaction.
In addition, 2-aminonaphthalene-1-sulfonic acid has a wide range of uses in the dye industry and is often an important intermediate for synthesizing dyes. Because the amino group and the sulfonic acid group can be chemically reacted into chromophore and chromophore-assisting groups, a variety of dye molecules can be constructed, giving rich colors to fabrics and other materials. At the same time, because of its active chemical properties, it is necessary to avoid contact with strong oxidizing agents, strong bases and other substances during storage and use to prevent dangerous chemical reactions from occurring, which will affect its quality and

What are the synthetic methods of 2-Aminonaphthalene-1-Sulphonic Acid?

The synthesis method of 2-aminonaphthalene-1-sulfonic acid has also been studied in many ways in the past. One method is to use naphthalene as the starting material and sulfonate it first. Naphthalene and sulfuric acid are heated together, and the temperature is cleverly controlled, so that the sulfonic acid group can enter the specific position of the naphthalene ring, and is mostly introduced into the α position of the naphthalene ring to obtain naphthalene sulfonic acid. Then, this naphthalene sulfonic acid is nitrified. Under suitable conditions, nitric acid can be introduced into nitro groups, but it is necessary to pay attention to the selectivity of the reaction, so that the nitro group falls in the adjacent position or counterposition where the amino group is to be formed. After the appropriate reducing agent, such as the combination of iron powder and hydrochloric acid, the nitro group is converted into an amino
There is another method, starting with a naphthalene derivative containing a specific substituent. For example, a naphthalene compound containing an easily convertible group is first converted into a sulfonic acid group through a specific reaction, and then another reaction is carried out to introduce an amino group at a suitable check point. In this process, it is very important to control the reaction conditions, such as temperature, pH, and the proportion of reactants, which will affect the purity and yield of the product. And after each step of the reaction, it is often necessary to separate and purify finely, or use crystallization or extraction to remove impurities to obtain pure 2-aminonaphthalene-1-sulfonic acid. The process of synthesis requires careful selection based on the availability of raw materials, cost considerations, and requirements for product quality.

What is the price range of 2-Aminonaphthalene-1-Sulphonic Acid in the market?

What is the price of 2-aminonaphthalene-1-sulfonic acid in the market? This question is quite important, and it is related to commercial trade-offs. However, it is not easy to know its price. The price of the product often varies according to the supply and demand of the time, place, quality and market.
Looking at the example of "Tiangong Kaiwu" in the past, the price of all kinds of products at that time was affected by many factors. For example, the genus rice and wheat, the price is flat in the rich year, but high in the sorry year. The same is true of this 2-aminonaphthalene-1-sulfonic acid. The difficulty of its production, the price of the raw materials used, and the amount of labor costs are all variables in the price.
If the approximate price is sought, the price may vary greatly between cities due to differences in quality. For crude products, the price may be slightly cheaper, ranging from tens to hundreds of dollars per catty. And for refiners, the purity requirements are quite high, the process is complicated, and the cost is greatly increased. The price may be several times that of crude products, per catty or hundreds of dollars.
And regional differences also have an impact. In places with sufficient supply, the price may be slightly lower; in remote and scarce places, due to transshipment costs, the price will rise. In addition, the supply and demand of the market is also the key. If there are many people who want it, the supply will be limited, and the price will increase. On the contrary, if the supply exceeds the demand, the price will fall. Therefore, if you want to know the exact price, you must carefully examine the market conditions and consult the merchants from multiple parties to obtain a more accurate number.