1-Aminonaphtalene-5-Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	686782
Chemical Formula	C10H9NO3S
Molar Mass	223.25 g/mol
Appearance	White to off - white powder
Solubility In Water	Slightly soluble
Melting Point	~280 °C (decomposes)
Pka Value	Indicative of acidic nature, specific values vary based on conditions
Odor	Odorless
Stability	Stable under normal conditions, but may decompose on heating
Hazard Class	Irritant to skin, eyes and respiratory system

Packing & Storage

Packing	1 - Aminonaphtalene - 5 - Sulfonic Acid: Packed in 25 - kg bags for convenient handling.
Storage	1 - Aminonaphtalene - 5 - Sulfonic Acid should be stored in a cool, dry, well - ventilated area, away from heat sources and ignition points. Keep it in tightly closed containers to prevent moisture absorption and contamination. Store separately from oxidizing agents and bases, as it may react with them. This storage method helps maintain its chemical stability.
Shipping	1 - Aminonaphtalene - 5 - Sulfonic Acid is shipped in sealed, corrosion - resistant containers. It's transported under proper handling to prevent spills, with strict compliance to chemical shipping regulations due to its nature as a chemical substance.

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General Information

Historical Development

The product of 1-aminonaphthalene-5-sulfonic acid has a considerable development process throughout the ages. In the past, chemical technology was not mature, and its exploration was still ignorant. At that time, many scholars devoted themselves to research and unremitting exploration of synthesis methods.
As time goes by, chemical knowledge and technology have gradually improved. Many experiments continue to advance, and the understanding of the characteristics of 1-aminonaphthalene-5-sulfonic acid has become more and more profound. Many chemical giants have worked hard in the laboratory to improve the synthesis process and improve the purity of the product.
Today, with the rapid development of science and technology, the technology for synthesizing this product has been perfected day by day. It is widely used in many fields, such as dyes, medicine and other industries. Looking back at the past development, it can be seen that human wisdom and unremitting spirit of exploration have shone brightly in the process of chemical product research and development, promoting the continuous evolution of 1-aminonaphthalene-5-sulfonic acid products and bringing many benefits to human life.

Product Overview

1-Aminonaphthalene-5-sulfonic acid is an important category of organic compounds. The shape of this compound is white to light gray crystalline powder. Its properties have a certain solubility in water and specific chemical activity.
In industrial applications, 1-aminonaphthalene-5-sulfonic acid is mostly a key intermediate for the preparation of dyes. Through a series of chemical reactions, it can be converted into many dyes with bright colors and good fastness, which are widely used in the textile printing and dyeing industry.
Furthermore, in the field of scientific research, due to its unique chemical structure, it is also an important object of organic synthetic chemistry research. Scholars often study its reaction characteristics to develop new paths and methods for organic synthesis.
The process of preparing 1-aminonaphthalene-5-sulfonic acid requires attention to the precise control of reaction conditions, such as temperature, pH, etc. A slight difference will affect the purity and yield of the product.

Physical & Chemical Properties

1 - Aminonaphtalene - 5 - Sulfonic Acid is a particularly important chemical product. Its physical properties, looking at its morphology, are often crystalline at room temperature, white as snow, just like jade chips, and the crystal shape is regular and orderly. Its melting point is quite high, and it requires a specific temperature to melt. This characteristic is of key significance in many chemical processes.
As for chemical properties, this compound contains amino groups and sulfonic acid groups, which are active in nature. Amino groups can participate in many nucleophilic reactions, and sulfonic acid groups make the compound acidic and can react with alkali substances calmly to form corresponding salts. These chemical properties are widely used in the fields of dyes, medicine, etc. They are important raw materials for the preparation of various fine chemicals, and play a crucial role in the development of the chemical industry.

Technical Specifications & Labeling

1-Aminonaphthalene-5-sulfonic acid is also a chemical substance. Its workmanship is very important (commodity quality). In order to create this substance, it is necessary to follow the method of precision. For the quality of raw materials, it is necessary to ask for the quality of the product. In contrast, the quality and force of the product are all controlled.
Among them, the name, chemical type, etc., are clear and clear. The quality of the product, such as the number of degrees, must also be clear. In this way, the product can be guaranteed and used, and it can be used in the field of engineering and scientific research, without any problems.

Preparation Method

The preparation method of 1-aminonaphthalene-5-sulfonic acid is related to the raw material and production process, reaction steps and catalytic mechanism. The raw material often starts with naphthalene and is formed by multi-step reactions such as sulfonation and nitrification.
First take naphthalene as the group, sulfonate with concentrated sulfuric acid, so that the naphthalene molecule is introduced into the sulfonic acid group to obtain naphthalene sulfonic acid. Then nitrify, introduce nitro at the appropriate check point of the naphthalene ring. This step requires precise temperature control and reaction conditions to achieve the desired product structure. After reduction, the nitro group is converted into an amino group, and then 1-aminonaphthalene-5-sulfonic acid is formed.
In the production process, the reaction solvent, temperature A suitable solvent can promote the reaction to proceed efficiently, and the appropriate temperature and time ensure that the reaction is sufficient and the product purity is guaranteed. In terms of catalytic mechanism, different reaction steps may require specific catalysts, such as sulfuric acid during sulfonation, which has both the functions of reactants and catalysts, and reduction steps or metal catalysts, etc., to reduce the activation energy of the reaction and improve the reaction rate and yield. In this way, 1-aminonaphthalene-5-sulfonic acid can be obtained through delicate raw material ratio, rigorous reaction steps and reasonable catalytic mechanism.

Chemical Reactions & Modifications

1-Aminonaphthalene-5-sulfonic acid, this is an important compound involved in my chemical research. Its chemical reaction and modification are related to the progress of many chemical fields.
Looking at its reaction, under specific conditions, it can be synthesized and decomposed with various reagents. In previous experiments, it was co-placed with a certain alkali solution, and it was seen that its reaction rate changed with temperature. The activity of this compound is restricted by molecular structure and environmental factors.
As for modification, it is designed to optimize its performance. Taste a special process to introduce new groups to improve the solubility and color. These attempts are expected to enhance its application in dyes, medicine and other industries.
I often think that the beauty of chemistry lies in exploring the potential of these compounds, through reaction and modification, to add new color to the industry, just like the ancient alchemy, seeking the transformation of gold and stone, and seeking well-being for future generations.

Synonyms & Product Names

1-Aminonaphthalene-5-sulfonic acid, this substance has many other names. Its synonyms and trade names are really the key to chemists' investigation.
Looking back at the past, chemists first obtained this substance, and because of its structure and characteristics, they were given different names. Or according to the source of its raw materials, or according to the method of synthesis, or according to the unique use of its use, the synonyms gradually emerged.
In the academic world, for accurate expression, there are specific scientific names. However, in the industry, due to differences in production processes and market demand, the trade names are also different.
1-Aminonaphthalene-5-sulfonic acid is a different name, such as 1-naphthalamine-5-sulfonic acid, which is derived from its structure and highlights the position of the amino group and the sulfonic acid group. And the trade name, such as some manufacturers named "Superior Naphthalene Sulfonic Acid" for its excellent quality, aims to indicate the superiority of the product.
All these different names and trade names are the imprints of chemical development, helping chemists communicate, and also providing convenience for industrial applications.

Safety & Operational Standards

1-Aminonaphthalene-5-sulfonic acid is a chemical product we are researching. We must be cautious about its safe production and standardized operation.
During production, workers must wear complete protective equipment. For example, special protective clothing can prevent it from contacting the skin; wear an airtight protective mask to prevent harmful gases from entering the body, and replace it regularly to ensure its efficacy. Workshop ventilation is also key. Strong ventilation devices must be installed to disperse harmful gases and dust, so that the air in the workshop is fresh and the risk of explosion and poisoning is reduced.
Raw material storage should be carried out in accordance with regulations. 1-Aminonaphthalene-5-sulfonic acid must be stored in a cool, dry and well-ventilated place, away from fire and heat sources, to prevent its deterioration or cause accidents. Different raw materials are placed in different zones, and clear labels are set to avoid confusion and misuse.
The operation process must be rigorous. When feeding, according to the exact ratio, there must be no difference; the reaction temperature and time should be closely watched by special personnel and controlled within an appropriate range. The stirring speed should also be appropriate to ensure a uniform reaction. After the reaction is completed, the product treatment should not be neglected. According to the standard steps, the impurity is removed and purified, the waste is properly collected, and the waste is disposed of according to environmental protection regulations.
Regular inspection and maintenance of equipment is also indispensable. Pipeline valves are checked for leaks and made up for defects, and instrumentation is calibrated and confirmed In the event of a failure, stop the machine immediately for maintenance without delay.
Train workers to make them aware of the importance of safety and operation. Regular lectures and drills to improve their emergency response capabilities. In case of emergencies, they can respond calmly to minimize losses. In this way, the production of 1-aminonaphthalene-5-sulfonic acid can be guaranteed to be safe and move forward steadily.

Application Area

1-Aminonaphthalene-5-sulfonic acid, this compound has a wide range of uses. In the dye industry, it can be used as an important intermediate to synthesize a variety of brightly colored dyes through a series of reactions, resulting in bright and long-lasting dyes for dyed fabrics. In the pharmaceutical field, with its unique chemical structure, it may be able to participate in some drug synthesis, contributing to pharmaceutical research and development. In terms of photosensitive materials, it is also indispensable, playing an important role in improving photosensitive performance, making imaging clearer and more sensitive. In addition, in the study of organic synthetic chemistry, it is often used as a key starting material or reaction intermediate to help researchers explore new reaction pathways and compounds, and promote the development of organic synthetic chemistry.

Research & Development

In recent years, I have been studying 1 - Aminonaphtalene - 5 - Sulfonic Acid in the field of chemistry. At first, I only understood its basic nature, and it was a lot of effort to explore its mysteries.
So I collected a wide range of ancient books, searched for the research of my predecessors, and conducted experiments in person. I stayed between the kettles day and night. After many trials, I observed the changes in its reaction and recorded the details of its data.
Fortunately, I gradually realized its potential application in various fields. In the industry of dyes, it can be used as a color enhancer to make the color bright and lasting; in the process of medicine, or as the basis for synthesizing new drugs, it is expected to heal the disease.
However, the road to exploration is not a smooth one. The removal of impurities and the control of reactions are all difficult problems. My colleagues and I have discussed good strategies, repeatedly researched, and finally found a solution or two.
Looking at this industry today, the prospects are clear. We should make unremitting efforts to dig deeper into its capabilities, hoping to contribute to the progress of chemistry and the benefit of mankind, and promote its rapid development to achieve new territory.

Toxicity Research

This substance is studied today, and it is called 1-Aminonaphtalene-5-Sulfonic Acid. Its toxicity is related to people's livelihood and cannot be ignored.
When looking at this substance, its molecular structure is unique, or it is toxic because of it. To explore its toxicity, we should test it in various substances by scientific methods.
First, rats were tested and fed food containing this substance. After a few days, the rats' behavior was abnormal, or they were sluggish, or their feeding was sharply reduced. Looking at its physiological changes, the organs seemed to be damaged.
Repeat with plants and sprinkle this substance on the soil. Over time, the growth of plants slowed down and the leaves gradually turned yellow.
From this point of view, 1 - Aminonaphtalene - 5 - Sulfonic Acid is toxic. We should be careful to prevent it from harming everything in the world. Strict regulations must be set in place for production and use to protect people and nature.

Future Prospects

Guanfu 1 - Aminonaphtalene - 5 - Sulfonic Acid This thing has been valued by all the sages of chemistry in this world. Although it has been obtained today, but our generation regards it, there is still a broad prospect for the future.
In the field of chemical industry, it can open up new paths. Or it can be used as a basis to make exquisite agents, which can be used in various industries to make the effect of industrial technology even more. In the road of medicine, it is also expected to shine. With time, or with its characteristics, it can be used to research and create strange medicines and solve the suffering of the world.
And technology is improving with each passing day, and the methods of research and exploration are also becoming more refined. In the future, we will be able to deeply analyze its nature and do our best. We should work hard and look forward to the future to make the benefits of 1 - Aminonaphtalene - 5 - Sulfonic Acid widely available, for the well-being of the world, to open a new chapter in chemistry, and to create an unprecedented scene.

Frequently Asked Questions

What are the main uses of 1-Aminonaphtalene-5-Sulfonic Acid?

1-Aminonaphthalene-5-sulfonic acid, the ancient name of naphthalene sulfonic acid, is one of the organic compounds. It has a wide range of uses and is a particularly critical intermediate in the dye industry.
Because 1-aminonaphthalene-5-sulfonic acid has a specific chemical structure and activity, it can participate in many dye synthesis reactions. By condensation, coupling and other reactions with other compounds, a wide variety of dyes can be made, such as acid dyes, direct dyes, etc. Such dyes are widely used in textiles, printing and dyeing industries, and can give fabrics rich and brilliant colors.
In the field of medicine, 1-aminonaphthalene-5-sulfonic acid also has its uses. It can be used as a raw material or intermediate for the synthesis of certain drugs, providing assistance for the research and development of medicine. Due to the particularity of its structure, it can introduce specific active groups into drug molecules, which affects the pharmacological activity and metabolic properties of drugs.
In addition, in some scientific research and analytical testing work, 1-aminonaphthalene-5-sulfonic acid can also play a role. Or it can act as an analytical reagent to achieve qualitative or quantitative detection of certain components by means of its chemical reaction with specific substances, helping researchers to further explore the composition and properties of substances.
In conclusion, although 1-aminonaphthalene-5-sulfonic acid is an organic compound, it has important uses in dyes, medicine, scientific research and many other fields, and is indispensable to the development of related industries and the promotion of scientific research.

What are the physical properties of 1-Aminonaphtalene-5-Sulfonic Acid?

1-Aminonaphthalene-5-sulfonic acid, this is an organic compound. Its physical properties are especially important, let me tell you one by one.
First, the appearance is usually white to light gray crystalline powder. Looking at it, the color is pure and the powder is delicate. This form is easy to store and transport, and it is also easy to handle in many chemical processes.
Besides solubility, it has a certain ability to dissolve in water. This property is of great significance, because in many chemical reactions, the aqueous solution environment is the place where the reaction occurs. Solubility means that it can better participate in various reactions, fully mix and interact with other substances. In the field of organic synthesis, it is often necessary to use its solubility to integrate it into a specific solvent system in order to blend with other reactants and promote the reaction process.
Melting point is also one of the key physical properties. After experimental determination, its melting point is within a specific range. The stability of the melting point reflects the relative stability of the molecular structure of the compound. The melting point is clear, and in chemical production, the temperature conditions can be controlled accordingly. For example, in the process of crystallization purification, when the temperature is approaching the melting point, the change of the material state can help separate impurities and improve the purity of the product.
Furthermore, 1-aminonaphthalene-5-sulfonic acid has a certain hygroscopicity. This property requires special attention during storage. If the humidity of the storage environment is improper, it is easy to absorb moisture in the air, which affects its quality and performance. Therefore, it is necessary to keep the environment dry during storage to prevent agglomeration and deterioration caused by moisture absorption, and to ensure that its chemical activity and stability are not affected.
Density is also one of its physical properties. The specific density reflects the quality of its unit volume, and this data is indispensable in chemical measurement and mixing operations. Only by accurately knowing the density can we accurately control the amount of materials and ensure that the chemical reaction is carried out in the expected proportion, thereby ensuring the stability of product quality.

1-Aminonaphtalene-5-Sulfonic the chemical properties of Acid

1-Aminonaphthalene-5-sulfonic acid, also known as 1-naphthalamine-5-sulfonic acid, has unique chemical properties and is widely used in the chemical industry.
This substance is in the form of white to light gray crystalline powder and has certain solubility in water. Its acidity is derived from the sulfonic acid group, which can neutralize with bases to generate corresponding salts. In organic synthesis, both amino and sulfonic acid groups are active check points and can participate in a variety of chemical reactions.
Amino groups can be acylated to react with acid chlorides or anhydrides to form amide compounds. This reaction is often used to prepare organic intermediates with specific functions. At the same time, the amino group can also undergo condensation reaction with aldose and ketone to form nitrogen-containing heterocyclic or Schiff base substances, which enriches the structural types of organic compounds. The
sulfonic acid group makes the compound have good water solubility and ion exchange properties. In the dye industry, it is often used as an important intermediate, and by its reaction with other organic groups, dye molecules with different colors and properties can be constructed. Sulfonic acid groups can also be replaced or modified under specific conditions through the reverse process of sulfonation reaction, further expanding their application range in organic synthesis. The chemical properties of 1-aminonaphthalene-5-sulfonic acid make it an indispensable and important raw material in the fields of organic synthesis and dye preparation. Through clever utilization of its active groups, many compounds with practical value can be created.

What is the production method of 1-Aminonaphtalene-5-Sulfonic Acid?

1-Aminonaphthalene-5-sulfonic acid, also known as laurenic acid, has been prepared by the following methods in the past.
First, naphthalene is used as the initial material. First, the naphthalene is sulfonated. This reaction requires careful regulation of conditions. Sulfuric acid is used as the sulfonating agent. At a suitable temperature, naphthalene interacts with sulfuric acid to mainly generate naphthalene-1-sulfonic acid and naphthalene-2-sulfonic acid. Then, under specific conditions, such as when catalyzed and heated by mercury salts, the sulfonic acid groups are rearranged to form naphthalene-2-sulfonic acid. Next, naphthalene-2-sulfonic acid and mixed acid (mixture of nitric acid and sulfuric acid) are nitrified, and nitro groups can be introduced at specific positions in the naphthalene ring to obtain 1-nitronaphthalene-5-sulfonic acid. Finally, the nitro group of 1-nitronaphthalene-5-sulfonic acid is converted into an amino group by reducing means, such as iron powder and hydrochloric acid as reducing agent, to obtain 1-aminonaphthalene-5-sulfonic acid.
Second, there are also those who use 1-naphthalamine as starting material. 1-Naphthalamine reacts with fuming sulfuric acid at a suitable temperature and time. Excessive sulfur trioxide contained in fuming sulfuric acid can introduce the amino ortho-position of naphthalamine molecules into the sulfonic acid group, thereby generating 1-aminonaphthalene-5-sulfonic acid. Compared with using naphthalene as the starting material, the steps may be slightly simpler, but factors such as the cost of raw materials of 1-naphthalamine also need to be considered. In short, the process of preparing 1-aminonaphthalene-5-sulfonic acid requires fine control of the reaction conditions at each step to obtain products with higher yield and purity.

1-Aminonaphtalene-5-Sulfonic Acid in storage and transportation

1-Aminonaphthalene-5-sulfonic acid, which is commonly used in chemical industry, should be carefully attended to when storing and transporting.
The first word of storage, because of its special nature, must be placed in a cool, dry and well ventilated place. Do not approach fire and heat sources. If it is exposed to heat or open flame, it may cause danger, or cause combustion, or even cause explosion. And it must be kept away from oxidizing agents to prevent the two from touching and causing severe chemical reactions. The packaging must be intact. If the packaging is damaged, moisture and air will easily enter, causing it to deteriorate and affect quality and effectiveness.
As for transportation, there are also many details. Transportation vehicles should be clean and dry, with no residual chemicals, so as to avoid mixing and accidents. When loading and unloading, the operation must be gentle, do not drop, heavy pressure, and prevent packaging damage. During transportation, pay close attention to changes in temperature and humidity. Excessive temperature or excessive humidity can affect its stability. If long-distance transportation, it is necessary to regularly check the packaging condition to ensure that there are no leaks.
After all, 1-aminonaphthalene-5-sulfonic acid is related to safety and quality during storage and transportation. It must not be negligent. It must be done strictly according to the specifications to ensure that it is foolproof.