8-Aminonaphthalene-1-Sulfonic Acid

Lingxian Chemical

Specifications

HS Code	483817
Chemical Formula	C10H9NO3S
Molar Mass	223.25 g/mol
Appearance	Solid
Color	White to off - white
Solubility In Water	Slightly soluble
Melting Point	280 - 284 °C
Boiling Point	Decomposes before boiling
Odor	Odorless

Packing & Storage

Packing	500g of 8 - Aminonaphthalene - 1 - Sulfonic Acid packaged in air - tight plastic bags.
Storage	8 - Aminonaphthalene - 1 - Sulfonic Acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, open flames, and oxidizing agents. Store in a tightly sealed container to prevent moisture absorption and contamination. This helps maintain its chemical stability and reduces the risk of hazardous reactions.
Shipping	8 - Aminonaphthalene - 1 - Sulfonic Acid is shipped in well - sealed containers, compliant with chemical transportation regulations. Packaging safeguards against spills and ensures safe transit, typically via ground or sea freight depending on quantity and destination.

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General Information

Historical Development

8-Aminonaphthalene-1-sulfonic acid is also a product of chemistry. Tracing back to its source, chemists in the past worked hard to explore the properties of substances and seek a method of synthesis. At first, many attempts to obtain this compound encountered obstacles. However, the ambition of scholars is strong, and they are not discouraged from being frustrated.
After a long time of study, looking at the literature of the past, taking the length of other methods, progress has gradually been made. At the beginning, simple equipment, crude method, although the result is not pure, but the direction is set. With the passage of time, the skills have improved, and the equipment is also good. Everyone works together to analyze the reaction mechanism and optimize the steps, so that the yield gradually increases and the purity is better.
Therefore, 8-aminonaphthalene-1-sulfonic acid has left a deep imprint on the path of chemistry from the obscure exploration to the clear preparation, paving the way for future research on this substance and related entities.

Product Overview

8-Aminonaphthalene-1-sulfonic acid is a chemical that I have been working on recently. This substance has unique properties. It is a white to slightly yellow crystalline powder. It is slightly soluble in water, but easily soluble in alkali.
Its preparation is quite complicated and requires multiple steps of fine reaction. First, naphthalene is used as the initial raw material, and the sulfonation reaction is used to precisely introduce the sulfonic acid group. Then the nitro group is introduced at a specific position. After the reduction step, the nitro group is carefully converted into an amino group to obtain this product.
8-Aminonaphthalene-1-sulfonic acid has key uses in dyes, medicine and many other fields. In the dye industry, it can be used as an important intermediate to help synthesize colorful dyes. In the pharmaceutical industry, its unique structure or potential medicinal value makes it possible to develop new drugs. My research focuses on optimizing its preparation process, improving yield and purity, and hoping to contribute to the development of related industries.

Physical & Chemical Properties

8-Aminonaphthalene-1-sulfonic acid, its material has specific physical and chemical properties. Looking at its shape, it is often in a crystalline state, with a white or slightly light yellow color, which is slightly shiny under sunlight. Its melting point is quite high, and it needs to reach a specific temperature to melt, which is one end of the physical characteristics.
When it comes to chemical properties, it is acidic. Because it contains sulfonic acid groups, it can neutralize with alkali substances. And the existence of amino groups makes it possible to participate in many organic synthesis reactions. In organic solvents, depending on the characteristics of the solvent, it has different solubility, either soluble or slightly soluble. Under specific conditions, this compound can undergo reactions such as substitution and addition, and is an important raw material for chemical synthesis. Due to its unique physical and chemical properties, it is widely used in dyes, medicine, and other fields, and is indispensable for the development of related industries.

Technical Specifications & Labeling

Process specification and identification of 8-aminonaphthalene-1-sulfonic acid (commodity parameters)
Guanfu 8-aminonaphthalene-1-sulfonic acid This product, the process specification is related to the preparation method. First take the naphthalene as the group, through the sulfonation technique, obtain naphthalene sulfonic acid. Then ammonify, precisely control the temperature, and select the appropriate agent to form 8-aminonaphthalene-1-sulfonic acid.
As for the identification (commodity parameters), its color is white or nearly white, and it is powdery. The purity needs to be above 90% to 50%, and the impurity limit is strict. The water content is minimal to ensure its stability. And it should have a clear label, indicating the product name, content, batch, production time and other important items for identification, so that users can use it without risk of misuse. In this way, it is in line with the process regulations and identification.

Preparation Method

The preparation method of 8-aminonaphthalene-1-sulfonic acid is related to the raw material and production process, reaction steps and catalytic mechanism. The raw material is often taken as the starting point, and the sulfonation reaction is carried out, with sulfuric acid as the sulfonating agent, and the naphthalene and sulfuric acid are co-heated to obtain the naphthalenesulfonic acid isomer. Following the nitration method, nitro groups are introduced, and nitric acid and sulfuric acid are mixed to form mixed acids. Naphthalenesulfonic acid reacts with naphthalenesulfonic acid to form nitro-containing naphthalenesulfonic acid. After the reduction step, the nitro group is converted to amino groups, and iron powder and hydrochloric acid are often used as reducing agents. The reaction conditions need to be precisely controlled, and temperature, time and the proportion of reactants are all critical. During sulfonation, Catalytic mechanism can be used to accelerate the reaction, yield and purity. Through this series of steps, 8-aminonaphthalene-1-sulfonic acid products can be obtained.

Chemical Reactions & Modifications

The anti-modification of 8-aminonaphthalene-1-sulfonic acid has been in place since ancient times. In the past, in order to obtain this compound, it was often complex and anti-reactive. Initially, the naphthalene group, sulfonation, nitrification and other steps were used to obtain similar things. However, there are many, and the degree of efficiency is ideal.
In this way, the chemists have painstakingly researched and improved the reactive properties, such as the degree of integrity, strength, and catalysis, in order to improve the reactive properties and improve the degree of efficiency. There are new catalytic methods to make the reactive properties more directional, and the reactive properties of the sub-reactive properties can be improved. Or it can be changed to reverse dissolution, so that the reverse environment is more suitable, the activity of the material is improved, and the reverse road is also changed. In this way, it is necessary to make the transformation of the compound more suitable for the needs and the properties are more perfect.

Synonyms & Product Names

8-Aminonaphthalene-1-sulfonic acid, the synonym and trade name of this substance, is also the key to our chemical research. In the past, chemists first dealt with this substance, or the name of the naphthalene sulfonic acid variant, because of the relationship between the naphthalene ring and the amino group and the sulfonic acid group in its chemical structure. At that time, according to its structural characteristics, it may be called 1-sulfonic acid-8-aminonaphthalene.
Later, with the deepening of research, the academic community uniformly called 8-aminonaphthalene-1-sulfonic acid, but in the industrial field, the trade names are also diverse. Some merchants refer to its excellent performance as "crystal leucin", which means that in some reactions, the product is as shiny as a crystal. It is also known as "color enhancer", because it may show the advantages of color optimization in dye synthesis. These are all synonyms of 8-aminonaphthalene-1-sulfonic acid and trade names.

Safety & Operational Standards

8-Aminonaphthalene-1-sulfonic acid, this chemical substance is related to safe production and standardized operation, and must not be ignored.
At the beginning of preparation, all the equipment should be clean and dry to prevent impurities from mixing, affecting the purity of the product and causing accidents. When taking raw materials, it must be weighed according to the exact amount, so as not to make a slight difference. In the operation room, ventilation must be good. If harmful gases accumulate or do not disperse, it will endanger the health of the operator.
During the reaction process, temperature control is crucial. According to the specific reaction requirements, precise temperature control equipment must be used to keep the temperature of the reaction system constant. Excessive heating or cooling can cause the reaction to go out of control and cause danger. Stirring is also indispensable to allow the reactants to be fully mixed, to ensure that the reaction is carried out evenly, and to avoid local overheating or insufficient reaction.
When the product is initially formed, the separation and purification steps should be carefully carried out. Use appropriate separation methods, such as filtration, extraction, etc., and the operation methods must be skillful and precise. During the purification process, the selected reagents and conditions not only achieve the purpose of removing impurities, but also do not damage the product itself.
When storing, 8-aminonaphthalene-1-sulfonic acid should be placed in a cool, dry and ventilated place, away from fire sources and oxidants. The packaging must be tight to prevent it from being deteriorated by contact with air and moisture. After taking it, the packaging should be sealed immediately to prevent external factors from affecting its quality.
The experimenter's own protection is essential. During the entire operation, you should wear professional laboratory clothes, protective gloves and goggles, and gas masks if necessary to ensure your own safety.
In this way, strict adherence to safety and operating standards can make the production and use of 8-aminonaphthalene-1-sulfonic acid smooth and safe.

Application Area

8-Aminonaphthalene-1-sulfonic acid, this substance has a wide range of uses. In the field of dyes, it is often a key raw material for the synthesis of a variety of dyes with bright colors and good fastness, which can make fabrics have excellent coloring effects and lasting colors. In the field of medicine, some of its derivatives may have specific biological activities, which may play an important role in the process of drug development and help to explore new therapeutic drugs. In chemical analysis, it can also be used as an analytical reagent, with its unique chemical properties, to help identify and quantify certain substances. And in the field of organic synthesis, as an important intermediate, it participates in the construction of many organic compounds, expands the path of organic synthesis, and provides assistance for the development of various industries.

Research & Development

Today there is a thing called 8 - Aminonaphthalene - 1 - Sulfonic Acid. As a chemical researcher, it is really important for me to observe the research and development of this thing.
In the past, the investigation of this thing was still shallow and the knowledge was limited. However, with the passage of time, the method of research has advanced day by day. Scholars have worked hard to analyze its structure and explore its properties by scientific methods.
In the laboratory, after countless attempts, the method of preparation has been improved, so that the purity of this thing has gradually increased and the yield has also increased. And research on its use, found that it can play a role in many fields, such as the production of dyes, which can make the color more vivid and lasting; in medicine, it also has potential value, or can help the research and development of new drugs.
Looking to the future, we should make unremitting efforts to explore its mysteries, expand the scope of application, and hope to contribute more to scientific development and social progress, so that 8-Aminonaphthalene-1-Sulfonic Acid can bloom more brilliantly.

Toxicity Research

Toxicity of 8 - Aminonaphthalene - 1 - Sulfonic Acid. How this object appears and how the gas is, all need to be carefully observed. Take an appropriate amount and put it in a vessel and test it by various methods. Observe that it is mixed with other things, and observe that there is no abnormality. Perform various animal experiments to observe its impact on living beings.
After research, if a large amount of contact with it, or cause discomfort to living beings, physiological harmony. The skin touches it, or it causes redness and swelling; if it enters the body, it may disturb the viscera. Although it has its use in industry, the toxicity cannot be ignored. Researchers should be careful to prevent disasters, and when using it, they must follow the rules to ensure people's safety and safety, and do not let toxicity harm the world.

Future Prospects

The future prospect of 8-aminonaphthalene-1-sulfonic acid concerns our chemical researchers. This substance has emerged in the current field of chemistry, but there are still many areas to be explored for future development.
Looking at its properties, it has unique reactivity, and it can be expected to expand new avenues in the field of new material synthesis. Or it can develop functional materials with excellent performance, which can be used in cutting-edge technologies such as electronics and optics.
Furthermore, in the field of pharmaceutical chemistry, the structure of 8-aminonaphthalene-1-sulfonic acid may be cleverly modified to breed innovative drugs with better efficacy and fewer side effects.
We also hope that through in-depth research, we can optimize the preparation process, increase the yield, reduce the cost, and make this substance more widely used in industrial production. In this way, we can open the brilliant future of 8-aminonaphthalene-1-sulfonic acid and contribute to the chemical industry.

Frequently Asked Questions

What are the chemical properties of 8-aminonaphthalene-1-sulfonic acid?

8-Hydroxyquinoline-1-sulfonic acid is an organic compound that is acidic and can dissociate hydrogen ions in water. Its acidity is derived from the hydroxyl group and the sulfonic acid group, both of which are acidic groups, which can release hydrogen ions to cause the solution to be acidic.
8-Hydroxyquinoline-1-sulfonic acid still has coordination properties. Its quinoline ring and the oxygen atom of the hydroxyl group and the sulfonic acid group can provide lone pairs of electrons to form coordination bonds with metal ions, thereby forming stable complexes with various metal ions. This property is widely used in analytical chemistry and materials science, such as for the separation, enrichment and identification of metal ions.
Furthermore, 8-hydroxyquinoline-1-sulfonic acid has certain redox properties. Hydroxyl groups can be oxidized into quinone structures and participate in redox reactions under specific conditions. This property makes them useful as reducing agents or oxidants in some chemical reactions, or participate in catalytic redox processes.
Because of its conjugated system, 8-hydroxyquinoline-1-sulfonic acid has certain optical properties. It absorbs in the ultraviolet-visible region, can be qualitatively and quantitatively analyzed by ultraviolet-visible spectroscopy, and may have fluorescence properties, which may have potential applications in fluorescence analysis and preparation of fluorescent materials. In addition, the compound has a certain solubility in organic solvents, and a suitable organic solvent can be selected for dissolution and separation according to the principle of similar miscibility. The solubility varies depending on the type of solvent and temperature.

In which fields is 8-aminonaphthalene-1-sulfonic acid used?

8-Hydroxyquinoline-1-sulfonic acid is used in various fields. In the field of medicine, it has antibacterial and antiviral properties, can make antibacterial drugs, and is effective in treating infectious diseases. And because it can complex with metal ions, it can be used for the diagnosis and treatment of some metal ion-related diseases, helping doctors to distinguish the disease and administer therapy.
In the chemical industry, 8-hydroxyquinoline-1-sulfonic acid is an important organic synthesis raw material. With it, it can synthesize other organic compounds, which play a key role in the manufacture of fine chemical products, such as dyes, fragrances, etc., from which it can produce a variety of chemical products and enrich industrial categories.
In the field of materials science, it is also quite important. Due to its complexation with metal ions, it can be used to prepare metal complex materials. Such materials may have specific optical, electrical, magnetic and other properties, and are widely used in optoelectronic devices, sensors, etc. For example, in sensor manufacturing, it can be used to sensitively detect ion concentration by its reaction with specific metal ions, so as to realize the monitoring of ions in the environment and in vivo.
In the field of analytical chemistry, 8-hydroxyquinoline-1-sulfonic acid is often used as an analytical reagent. It is used for the qualitative and quantitative analysis of metal ions, and by means of its characteristic complex formation with different metal ions, spectrophotometry, titration and other analytical methods are used to accurately determine the type and content of metal ions in samples. In environmental monitoring, food testing, etc., in order to ensure environmental and food safety.

What are the synthesis methods of 8-aminonaphthalene-1-sulfonic acid?

The synthesis of 8-aminoquinol-1-carboxylic acid is a crucial topic in the field of chemical preparation. Its synthesis pathways are diverse, and each has its own advantages and disadvantages. The following are common methods.
First, quinoline is used as the starting material, and it can be obtained through multiple steps such as nitration, reduction, and carboxylation. First, quinoline is reacted with nitrifying reagents under suitable conditions to introduce nitro groups. This step requires fine regulation of the reaction conditions to ensure that nitro groups are introduced into specific positions. Subsequently, a suitable reducing agent is used to convert nitro groups into amino groups. Finally, through carboxylation reaction, carboxyl groups are added to specific positions of the quinoline ring to obtain the target product 8-aminoquinol-1-carboxylic acid. Although this route is complicated, the raw materials are easy to find, and it is quite commonly used in chemical synthesis practice.
Second, the coupling reaction strategy of transition metal catalysis is adopted. Quinoline derivatives containing specific substituents are first prepared, and then they are catalyzed by transition metal catalysts, such as palladium and copper, to couple with carboxyl-containing reagents. In this process, the selection of catalysts, the design of ligands, and the selection of reaction solvents and bases all have a profound impact on the efficiency and selectivity of the reaction. The advantage of this method is that the reaction conditions are relatively mild and more accurate functionalization can be achieved. However, the cost of transition metal catalysts is higher, and the reaction equipment and operation requirements are also more stringent.
Third, biomass is used as raw material and prepared through a series of chemical transformations. This is an emerging synthesis path under the concept of green chemistry. By extracting, modifying and transforming some biomass rich in specific structures, the molecular skeleton of 8-aminoquinone-carboxylic acid is gradually constructed. This approach not only meets the needs of sustainable development, but also has a wide range of raw materials and is green and environmentally friendly. However, this method is still in the research and exploration stage, and the reaction efficiency and yield need to be further improved.
The above synthesis methods have their own advantages and disadvantages. Researchers should carefully choose the appropriate synthesis strategy according to actual needs, resource conditions and the quality requirements of target products.

What is the market price of 8-aminonaphthalene-1-sulfonic acid?

8-Hydroxyquinoline-1-sulfonic acid is in the market, and its price is not determined by one word, and it involves many reasons.
One is the purity of the quality. If this product is high in purity and fresh in impurities, it will be self-priced in fields that require high purity such as pharmaceuticals and refinement. For example, if it is used for precise research in the laboratory, its purity is almost the extreme, and the price must be higher than usual. On the contrary, the purity is slightly lower, which is suitable for general industrial processes, and the price is slightly lower.
The second is the production rule. If the large-scale production line of furniture is produced, the cost per unit is reduced by the effect of scale, and the price is close to the people. And small-scale producers, due to the difficulty of production efficiency and cost control, their sales may be high.
The third is the demand of the market. When the demand for 8-hydroxyquinoline-1-sulfonic acid is prosperous in the fields of pharmaceutical research and development, materials science, etc., the supply is not enough, and the price must rise. If the demand is low, the supply will exceed the demand, and the price will be self-suppressing.
The fourth is the rarity of the source. If the raw materials for this product are thin, difficult to obtain, and the cost is high, the market price will rise.
The trade ring, transportation and storage fees also have an impact. Cross-border transactions involve changes in tariffs and exchange rates, which cause price fluctuations. And the transportation and storage of this product may require special methods to ensure its stability, and the fee will also be added to the price.
In summary, the market value of 8-hydroxyquinoline-1-sulfonic acid depends on various factors, or ranges from a few yuan to tens of yuan per gram. To determine its price, we should carefully consider the current market conditions and the provisions mentioned by the supplier.

What are the storage conditions for 8-aminonaphthalene-1-sulfonic acid?

For the storage conditions of 8-hydroxyquinoline-1-sulfonic acid, due to the specific properties of the substance, it needs to be properly stored to preserve its quality.
It should be placed in a cool and dry place. A cool place can keep the temperature constant and avoid variation in the properties of the substance due to excessive temperature. If it is in a hot place, it may cause its components to decompose and deteriorate, losing its inherent nature. A dry environment is also crucial. 8-hydroxyquinoline-1-sulfonic acid is resistant to moisture, and moisture can easily lead to chemical reactions such as hydrolysis, which will damage its purity and utility.
And it must be stored in isolation from oxidants, alkalis, etc. The oxidizing agent has strong oxidizing properties. When coexisting with 8-hydroxyquinoline-1-sulfonic acid, it is easy to trigger an oxidation reaction, causing its structure to change and loss of function. Contact with alkali substances can also cause chemical reactions and destroy its chemical structure.
Furthermore, the storage place should have good ventilation. Good ventilation can timely disperse gases that may accumulate due to trace volatilization of substances, avoid potential dangers caused by high gas concentration, and can make the temperature and humidity of the storage environment more suitable.
When taking and handling, also be cautious. Handle lightly to avoid damage to its packaging, to prevent material leakage, affect its quality, and avoid harm to the surrounding environment and personal safety. In this way, the rule for proper storage of 8-hydroxyquinoline-1-sulfonic acid.