1-Naphthylamine-4-Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	109775
Chemical Formula	C10H9NO3S
Molar Mass	223.25 g/mol
Appearance	white to light pink crystals
Solubility In Water	slightly soluble
Solubility In Organic Solvents	soluble in ethanol, ether
Melting Point	288 - 290 °C
Boiling Point	decomposes
Acidity Pka	about 3.5
Density	1.51 g/cm³
Flash Point	non - flammable solid
Odor	odorless

Packing & Storage

Packing	1 - Naphthylamine - 4 - Sulfonic Acid: Packed in 25 - kg bags for secure storage and transport.
Storage	1 - Naphthylamine - 4 - Sulfonic Acid should be stored in a cool, dry, well - ventilated area, away from heat and direct sunlight. Keep it in a tightly closed container to prevent moisture absorption and exposure to air. Store it separately from oxidizing agents, acids, and bases to avoid chemical reactions. Ensure proper labeling for easy identification.
Shipping	1 - Naphthylamine - 4 - Sulfonic Acid should be shipped in tightly - sealed containers, safeguarded from moisture and heat. It must comply with hazardous chemical shipping regulations to ensure safe transportation.

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General Information

Historical Development

1 - Naphthylamine - 4 - Sulfonic Acid, the development of this product has been going on for a long time. Tracing back to its source, chemists at an early age made unremitting research and made gains. At that time, the chemical technology was not exquisite, but scholars were enthusiastic and moved forward on the road of exploration.
At the beginning, the preparation was difficult, the yield was quite low, and the quality was not good. However, people are not afraid of obstacles, and have tried many times to improve the method. With the passage of time, chemical knowledge has increased day by day, and technology has also improved. The preparation process is optimized, the yield has been improved, and the quality has become better.
It is used in the field of industry and scientific research, and its use has become wider. The difficult situation in the past has been greatly changed now. The development of 1 - Naphthylamine - 4 - Sulfonic Acid is a brilliant chapter in the history of chemistry, witnessing the wisdom and efforts of countless sages.

Product Overview

1 - Naphthylamine - 4 - Sulfonic Acid is an important raw material in the chemical industry. Its shape may be crystalline powder, and its color is often nearly white. This compound has unique chemical properties and is widely used in dyes, medicine and other industries.
Looking at its structure, naphthalene cyclic amine group and sulfonic acid group give special reactivity. In the preparation of dyes, it can add color to fabrics, and the resulting dyes are bright in color and have good fastness. In the field of medicine, it may be involved in the synthesis of drugs. Intermediates help create special and good medicines.
However, its production and use also need to be cautious, because of its chemical properties or latent risks to the environment and human health. Therefore, those who operate this product should follow strict safety procedures to ensure production safety, environment and human health. In this way, the effectiveness of 1-Naphthylamine-4-Sulfonic Acid can be continuously exerted to promote the development of various industries.

Physical & Chemical Properties

1 - Naphthylamine - 4 - Sulfonic Acid is also a chemical substance. Its properties are both physical and chemical. Physical, often in crystalline form, color or white or micro-other color, with a certain degree of melting, this is its inherent nature, can be used.
its chemical properties, because it contains amino sulfonic acid groups, it has a high reaction rate. The amino group is high-performance, which can be formed into an acid; the sulfonic acid group is acidic and can be neutralized. And because of its special nature, it can be used for many synthetic reactions, and can be used in the field of dyes, chemicals, etc. Its reaction activity is also affected by the production of surrounding components, and the degree of solubility and solubility can affect the rate of transformation. Therefore, the physicalization of 1 - Naphthylamine - 4 - Sulfonic Acid lays an important foundation for its application in engineering and scientific research.

Technical Specifications & Labeling

1 - Naphthylamine - 4 - Sulfonic Acid Process Specification and Labeling (Product Parameters)
Guofu 1 - Naphthylamine - 4 - Sulfonic Acid This product, the process specification is the key. At the beginning of preparation, it is necessary to select high-quality raw materials and mix them in clean utensils according to a specific ratio. During this time, the temperature control is accurate, or it needs to be boiled slowly, or when it is fried on a hot fire, so that the materials are well blended.
As for the label, its chemical name "1 - Naphthylamine - 4 - Sulfonic Acid" should be clearly stated, and it should be replaced by the common name "Note". Detailed product parameters, such as purity geometry, impurity content, must be clear and unambiguous. On the packaging, the logo must be eye-catching, easy to identify and use, in order to obtain the essence of the process specification and logo, so that this product is excellent.

Preparation Method

1 - Naphthylamine - 4 - Sulfonic Acid is an important chemical. Its preparation method, raw materials and production process are very important. Naphthylamine is first taken as the starting material, and under suitable reaction conditions, it interacts with the sulfonation reagent. Generally speaking, concentrated sulfuric acid is used as the sulfonating agent, and the temperature is controlled within a specific range to cause the sulfonation reaction to occur. This reaction step requires strict operation, paying attention to the regulation of temperature and reaction time.
During the reaction process, closely monitor the degree of reaction and adjust the conditions in a timely manner. After the reaction is complete, it goes through a series of post-processing steps, such as neutralization, separation, purification, etc. During neutralization, select the appropriate basic substance and adjust the pH of the system to the appropriate range. Then the crude product is obtained by suitable separation means, such as filtration, extraction, etc. Finally, it is finely purified to obtain high purity 1-Naphthylamine-4-Sulfonic Acid. This preparation can ensure the quality and yield of the product.

Chemical Reactions & Modifications

Guanfu 1 - Naphthylamine - 4 - Sulfonic Acid The transformation of this substance, in which the reaction and the change of properties are related to the need for chemical change. The principle of the reaction is that the raw materials are mixed at first, and with the help of a certain temperature, pressure and catalysis, the intermolecular bonds are cracked and reconnected to form this new substance.
Due to the nature of change, its physical characteristics are either light in color, crystalline in state, and have a certain solubility. Chemical properties, can react with bases to form corresponding salts, and under specific conditions, can participate in redox changes.
In order to improve its transformation, when the conditions of the reaction are carefully studied, the temperature and pressure are adjusted, and the catalysis is selected to make the yield high and the quality is pure. In the field of chemical preparation, it is essential to explore its reaction and change properties.

Synonyms & Product Names

1 - Naphthylamine - 4 - Sulfonic Acid, this substance also has many nicknames and trade names. Among its nicknames, there are those that are called according to their chemical structure characteristics, such as p-aminonaphthalenesulfonic acid, which is named after the distribution of amino groups and sulfonic acid groups in specific positions on the naphthalene ring. As for the trade name, in the past, chemical companies were often named after their own characteristics. At that time, because of its unique production process, it could make the product purity outstanding, so it was introduced to the market under the trade name "pure crystal naphthalenesulfonic acid", which was well known in the industry. There is also a trade name that highlights the stability of the product and is named "stable naphthalenesulfonic acid". These nicknames and trade names carried product characteristics and business reputation in the past chemical exchanges and trade. Although the times have changed, they have left a unique imprint on the course of chemical research and industrial development.

Safety & Operational Standards

1 - Naphthylamine - 4 - Sulfonic Acid is a chemical product, which is related to its safety and operation specifications and should not be ignored.
At the beginning of preparation, all raw materials must be carefully selected to ensure that they are pure and free of impurities, and the measuring tools are accurate and correct before they can meet the specifications. The preparation site should be well ventilated to prevent the accumulation of harmful gases and endanger the human body. The operator must also strictly wear protective equipment, such as masks, gloves, goggles, etc., to prevent harmful substances from getting close to the body.
When reacting, temperature, pressure, time and other conditions must be strictly controlled. If there is a slight error, it is easy to cause the reaction to go out of control and cause safety risks. When observing the use of fire candles, be very careful, keep away from flammable objects, and keep fire extinguishers on the side for fear.
The product is ready, and the storage is also regular. It should be placed in a cool, dry and ventilated place, away from fire sources and oxidants. And it must be packed in a specific container, tightly sealed to prevent leakage.
When handling, the action should be gentle and smooth to avoid collisions and falls. In case of leakage, do not panic, and deal with it quickly according to the established process. Small leaks can be collected in clean, covered containers; if there are large leaks, a warning area must be demarcated, evacuate everyone, and report to professionals for handling.
All matters involving the preparation, storage, and handling of 1 - Naphthylamine - 4 - Sulfonic Acid should be strictly adhered to safety and operating standards, and must not be slack at all, so as to ensure the safety of personnel and the environment.

Application Area

1 - Naphthylamine - 4 - Sulfonic Acid is also used to transform things. Its use, in the field of dyes, can be used to color materials and dye things to obtain bright colors and increase their beauty. In the field of, or related to material research, the basis of synthesis, to help

Research & Development

1 - Naphthylamine - 4 - Sulfonic Acid is an important category of chemical industry. At the beginning of my research, the selection of raw materials was very laborious, and it needs to be carefully selected to ensure that it is pure and flawless, so as to lay the foundation for subsequent research and production.
The method of research and production has been repeatedly researched and tried in many ways. Or improve the old method and revolutionize the old; or explore new ways and find another way. The process is difficult and there are many obstacles, but I am determined and have never let up.
As for the application, this product shines brightly in the dyeing and weaving industry. It can make the fabric bright and lasting, and is valued by the industry.
Looking to the future, we should maintain our dedication and continue to study. Optimize the process, improve the quality, and broaden its application. We hope to emerge in more fields and promote the prosperity of the industry. This is what I hope for.

Toxicity Research

Those who taste the things in the world that are harmful to people must not be ignored. Today there is 1 - Naphthylamine - 4 - Sulfonic Acid, and I am worried about its toxicity.
Watching this thing, although it may have its uses in industrial things, the hidden dangers of toxicity should not be ignored. After various tests, it can be known that it may be able to damage the human body and mess with the viscera. When touching, the skin may feel uncomfortable, or even cause serious illness.
It is a well-being plan for everyone, and its use and storage should be handled with care. Strict regulations are made and careful methods are used to prevent it from escaping and harming living things. The study of toxicity cannot be stopped, and it is necessary to know its nature to avoid disasters and ensure peace among people.

Future Prospects

The Prospect of the Future, 1 - Naphthylamine - 4 - Sulfonic Acid This object is of paramount importance in our research and development. Its use is extensive, and it can be used in dyeing and dyeing, and it can be used to improve the color of the material, so that the material can be colorful; in the field of production, or in the research of new foundations, it can save the world.
I hope that there will be no great situation in the method of development. Today's proposal will avoid retention. If a refined method can be developed, it will definitely increase its product and expand its use. And its synthesis is also expected to be easy and efficient. Today's synthesis may be labor-intensive, but if a convenient method is available, the cost can be reduced and the output can be increased.
Furthermore, the exploration of its nature still needs to be deeply excavated. The opposite of other things, or the hiding of new things, can be the way to research new things. In addition, 1 - Naphthylamine - 4 - Sulfonic Acid has not yet been developed, such as the vast stars. When we work hard with wisdom, we will definitely be able to explore them one by one.

Frequently Asked Questions

What are the main uses of 1-Naphthylamine-4-Sulfonic Acid?

1-Naphthylamine-4-sulfonic acid, its main uses are as follows:
This is a very important raw material in the chemical industry. In the dye industry, it plays a key role and is indispensable for the synthesis of many types of dyes. Through a series of chemical reactions, based on 1-naphthylamine-4-sulfonic acid, colorful dyes with different properties can be derived, such as acid dyes, direct dyes, etc. These dyes are widely used in the fabric dyeing process, making the fabric show colorful colors, and have good washing resistance and light resistance.
In the field of organic synthesis, 1-naphthylamine-4-sulfonic acid is also an important intermediate. With its special chemical structure, it can participate in many organic reactions for the construction of more complex organic compounds. By substitution, condensation and other reactions with other reagents, the structure of organic molecules is expanded, and then the foundation for the synthesis of organic materials with specific functions is laid.
In the field of analytical chemistry, it is also useful. Because it has certain chemical properties, it can be used as an analytical reagent to detect and identify certain specific substances. Use the phenomena presented by its specific reaction with the target substance, such as color change, precipitation formation, etc., to achieve qualitative or quantitative analysis of substances, and help researchers to further explore the composition and properties of substances.

What are the physical properties of 1-Naphthylamine-4-Sulfonic Acid?

1-Naphthylamine-4-sulfonic acid is also an organic compound. Its physical properties are quite unique, let me tell you in detail.
Looking at its shape, under normal circumstances, 1-naphthylamine-4-sulfonic acid is mostly white to light gray crystalline powder. This shape is easy to identify, and it is easy to store and use. Its color is light, when pure, it is as white as snow, and occasionally contains impurities, it is slightly light gray, but it does not compromise its essential characteristics.
Regarding solubility, this compound is soluble in water, although it is not very soluble, it can be dispersed under appropriate conditions. Water is a common solvent, and 1-naphthylamine-4-sulfonic acid can form a mixed system with water to a certain extent, which makes it play a unique role in many chemical processes. If in some reactions, water is used as the medium, it can better participate in the reaction process and interact with other substances.
To talk about its melting point, 1-naphthylamine-4-sulfonic acid has a specific melting point value. The melting point is the inherent property of the substance, which is crucial for its identification and purity judgment. By measuring the melting point, the purity of the compound can be determined. If the melting point value is accurate and close to the standard value, it indicates that its purity is high; if the melting point is deviated, it may contain impurities and needs to be further purified.
In addition, the density of 1-naphthylamine-4-sulfonic acid is also one of its important physical properties. Density reflects the mass per unit volume of a substance. In practical applications, such as involving material ratio, reaction system design, etc., density data can provide an important basis for related operations. Understanding its density can help to precisely control the amount of reaction materials and ensure that the reaction proceeds in the expected direction.
The physical properties of 1-naphthylamine-4-sulfonic acid are diverse, and the morphology, solubility, melting point and density are all of great significance for its application and research in the chemical field. In chemical production, scientific experiments and many other aspects, these properties are key considerations, laying the foundation for people to effectively utilize this compound.

What are the chemical properties of 1-Naphthylamine-4-Sulfonic Acid?

1-Naphthylamine-4-sulfonic acid, this is an organic compound. Its properties have many characteristics, let me come to you one by one.
Its color is often white to gray powder, with a certain solubility in water, soluble in alkali solution, and will separate in case of acid. This substance is acidic, and its sulfonic acid group can release protons.
In terms of chemical activity, naphthalene rings are aromatic and can undergo electrophilic substitution reactions, such as halogenation, nitrification, sulfonation, etc. Amino groups can participate in many reactions, such as salting with acids, reacting with acyl chloride, acid anhydride, etc. to form amides. Sulfonic acid groups can make compounds water-soluble, and also participate in specific reactions, such as reacting with alcohols to form sulfonates.
1-naphthylamine-4-sulfonic acid is widely used in the dye industry. It is an important intermediate for the synthesis of a variety of dyes, and its structural properties endow the dyes with good color and fastness. In the field of organic synthesis, it is also used as a key raw material to build complex organic molecular structures with its reactivity.
However, it should be noted that 1-naphthylamine-4-sulfonic acid may have certain toxicity and irritation. When operating, follow safety procedures to prevent contact with skin and inhalation of dust to ensure personal safety and environmental harmlessness.

What is the production method of 1-Naphthylamine-4-Sulfonic Acid?

1-Naphthylamine-4-sulfonic acid, the ancient name of naphthalamine sulfonic acid, its preparation method is as follows:
Take the refined naphthalene first, and then sulfonate it to obtain naphthalenesulfonic acid. When sulfonating, use sulfuric acid as a sulfonating agent, react at a specific temperature and time conditions, so that the specific position of the naphthalene is introduced into the sulfonic acid group.
Then, the obtained naphthalenesulfonic acid product is nitrified and introduced into the nitro group at a suitable check point in the naphthalene ring to obtain the nitro-containing naphthalenesulfonic acid derivative. In this process, factors such as the amount of nitrification reagent and the reaction temperature need to be controlled to ensure the accurate progress of the reaction. Commonly used reduction methods, such as iron powder, hydrochloric acid, etc. are used as reducing agents to convert nitro groups into amino groups to obtain 1-naphthylamine-4-sulfonic acid. During operation, pay attention to the control of reaction conditions, such as temperature, pH, etc., to ensure the purity and yield of the product. Each step requires fine operation and follows a specific process to obtain the best quality 1-naphthylamine-4-sulfonic acid.

1-Naphthylamine-4-Sulfonic precautions in the use of Acid

For 1-naphthylamine-4-sulfonic acid, there are many things to pay attention to when using it. First and foremost, this is a toxic substance that poses a potential hazard to human health. When operating, it is necessary to wear suitable protective equipment, such as gloves, protective goggles and masks, to prevent contact with the skin and eyes, and to prevent inhalation of its dust.
Furthermore, 1-naphthylamine-4-sulfonic acid is corrosive. If it is accidentally splashed on the skin or clothing, it must be rinsed with a lot of water immediately. If it splashes into the eyes, it should be rinsed immediately and treated quickly.
In addition, its storage also needs to be cautious. It should be placed in a cool, dry and well-ventilated place, away from fire and heat sources, and avoid mixing with oxidants, alkalis, etc., to prevent dangerous chemical reactions.
During use, it is essential to accurately control the dosage. According to the specific needs of the experiment or production, measure accurately, and must not be increased or decreased at will, so as not to affect the experimental results or production quality. After use, properly dispose of the remaining materials, do not discard them at will, and follow relevant environmental protection regulations to prevent pollution of the environment.
Because of its active chemical nature, when configuring solutions, etc., be sure to strictly follow the operating procedures, add them slowly, and stir constantly to prevent accidents due to violent reactions. Also, the equipment used should be clean and dry to prevent impurities from interfering with its chemical properties.