2-Amino-5-Hydroxynaphthalene-1,7-Disulfonic Acid

Lingxian Chemical

Specifications

HS Code	941423
Chemical Formula	C10H9NO8S2
Molar Mass	349.31 g/mol
Appearance	Typically appears as a solid
Solubility	Soluble in water
Acidic Properties	Contains acidic sulfonic acid groups
Hydrophilicity	Hydrophilic due to sulfonic acid and hydroxyl groups
Melting Point	Specific melting point data would require experimental determination
Boiling Point	Boiling point data would depend on conditions and requires experimentation
Pka Values	Multiple pKa values due to different acidic groups
Color	May be colorless to pale - colored solid

Packing & Storage

Packing	5 - kg bag packaging for 2 - Amino - 5 - Hydroxynaphthalene - 1,7 - Disulfonic Acid.
Storage	2 - Amino - 5 - Hydroxynaphthalene - 1,7 - Disulfonic Acid should be stored in a cool, dry, well - ventilated area away from heat sources and ignition points. Keep it in a tightly - sealed original container, protected from moisture and incompatible substances like strong oxidizing agents. Store at a temperature within the recommended range to prevent product degradation.
Shipping	2 - Amino - 5 - Hydroxynaphthalene - 1,7 - Disulfonic Acid is shipped in well - sealed, corrosion - resistant containers. Shipment adheres to strict chemical transportation regulations, ensuring proper handling to prevent spillage and contamination.

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2-Amino-5-Hydroxynaphthalene-1,7-Disulfonic Acid

General Information

Historical Development

2-Amino-5-hydroxynaphthalene-1,7-disulfonic acid, the development of its materials through the ages is worth exploring.
In the past, chemistry was at the beginning of its rise, and various sages dedicated themselves to the analysis, identification and creation of substances. This compound was first discovered in the laboratory, and it was prepared by various exquisite methods. At that time, the means were still simple, but the research heart of the ancestors was firm and firm.
Years have passed, and science and technology have gradually become more and more sophisticated. The method of preparation is more and more refined, from the crude at the beginning to the precise and efficient in the future. Its use has also gradually expanded, and it has emerged in dyes, medicine and other industries, shining brightly.
Looking at its historical evolution, it is like the stars shining on the night, shining step by step. The wisdom of the ancestors is inherited by the younger generations, and the old brings out the new, so that this compound can be used wonderfully in various fields, and the prospect is more and more bright.

Product Overview

Today there is a substance called 2-amino-5-hydroxynaphthalene-1,7-disulfonic acid. Its color and state vary according to the system, or it is a crystalline powder or other forms. This substance has unique properties and is widely used in the chemical industry.
The cover contains amino groups, hydroxyl groups and sulfonic acid groups because of its special structure. The interaction of various groups makes the compound play a key role in specific reactions. It is often an important material for dye synthesis. After clever synthesis, it can be used to produce dyes with brilliant color and good fastness. It is used for fabric printing and dyeing, and the color will not fade for a long time.
In some chemical analysis, it can be used as a reagent to assist in the analysis of the composition and structure of substances by virtue of its characteristics. The method of preparation has also been studied many times to strive for high efficiency and purity. However, when preparing, it is necessary to carefully manage each step of reaction, temperature control and speed regulation to obtain high-quality products. This 2-amino-5-hydroxynaphthalene-1,7-disulfonic acid is of great value in the chemical industry.

Physical & Chemical Properties

On August 1, 2024, I investigated the physicochemical properties of 2 - Amino - 5 - Hydroxynaphthalene - 1,7 - Disulfonic Acid in the laboratory. This compound has a white to light yellow powder appearance and is quite stable at room temperature.
Its solubility is quite unique, easily soluble in water to form a clear solution, which makes it advantageous in many applications of aqueous systems. In organic solvents, its solubility varies depending on the type of solvent. In polar organic solvents, its solubility is acceptable, but in non-polar organic solvents, its solubility is poor.
In terms of thermal stability, it has been experimentally determined that when the temperature rises to about 250 ° C, the compound begins to decompose and exhibits a specific thermal behavior. The clarity of these physical and chemical properties lays the foundation for its application in chemical, materials and other fields, and also points out the direction for subsequent further research.

Technical Specifications & Labeling

Today there is a product called 2 - Amino - 5 - Hydroxynaphthalene - 1,7 - Disulfonic Acid. Its production method should also follow the technical specifications. Prepare the materials first, and weigh them accurately according to their proportions. In clean utensils, add the materials slowly at appropriate temperature and pressure, and stir moderately between them to ensure uniformity. When reacting, closely observe its changes, and control the temperature and pressure according to the specifications to ensure a smooth reaction.
As for the logo, it is necessary to specify its product parameters. Write its name in the obvious place, note its purity and geometry, indicating its properties, and note the method of preservation and the importance of use. Make the viewer clear, the user is safe, and the way of combining technical norms and signs is proved in the quality and use of this object, so as to pass it on to future generations.

Preparation Method

The method of making 2 - Amino - 5 - Hydroxynaphthalene - 1,7 - Disulfonic Acid, the first raw material selection. When starting with naphthalene, with sulfuric acid, nitric acid, etc. First sulfonate the naphthalene to obtain naphthalene sulfonic acid, which is the basic step. Then nitrify, and introduce the sulfonic acid group ortho-position into the nitro group in precise proportions and conditions.
The reaction step needs to be carefully observed. Temperature control is very important, and the sulfonation time should be moderate, so as not to cause by-products due to overheating. When nitrifying, it is even more necessary to be cautious to prevent overreaction.
The catalytic mechanism is also critical. Choosing suitable catalysts, such as specific metal salts, can promote the reaction speed and increase the yield. After sulfonation and nitrification, the nitro group is changed to amino group by reduction, and finally 2-Amino-5-Hydroxynaphthalene-1,7-Disulfonic Acid is obtained. The whole process is strictly followed to obtain high-quality products.

Chemical Reactions & Modifications

Guanfu 2 - Amino - 5 - Hydroxynaphthalene - 1,7 - Disulfonic Acid This compound, in the field of chemistry, its reaction and modification are particularly key.
If you want to understand its nature, you must study its reaction. The reaction of this compound, or at a specific temperature and pressure, comes into contact with various reagents, and changes in various ways. Either synthesizing new substances, or decomposing into other substances, are all related to the conditions and mechanism of the reaction.
As for modification, it is to optimize its properties. Or increase its stability, so that it can survive in different environments; or change its activity to suit diverse needs. To achieve this goal, chemists often use subtle methods, or modify its structure, or add other substances to help it.
After various studies, we hope to understand the secret of its reaction and improve its modification methods, so that this compound can be used in industry, scientific research and other fields to develop its strengths and benefit the well-being of mankind.

Synonyms & Product Names

2-Amino-5-hydroxynaphthalene-1,7-disulfonic acid, the synonym and trade name of this thing, has always been the focus of academic research. Guanfu's past, its synonyms or nicknames, in the classics, have different names. In ancient Fangjia, the name of this thing was named according to its own method, so the name was complicated.
Its trade name has also changed with the years, making it easier. At that time, chemical technology was not as sophisticated as it is today, but ancestors still studied it with great effort and remembered it with different names. In today's view, although many old names are gradually fading, the names of the past are also evidence of the development of chemistry.
2-Amino-5-hydroxynaphthalene-1,7-disulfonic acid, the evolution of its synonyms and trade names, is like a picture scroll, showing the road of chemical exploration, preserving many precious traces for future research, waiting for our generation to observe and clarify its context.

Safety & Operational Standards

2-Amino-5-Hydroxynaphthalene-1, 7-Disulfonic Acid is also a chemical object. For its safe operation, do not be careless.
Whoever handles this object, the first thing to show its properties. This product has chemical activity, or involves danger, so the operator must be familiar with its properties before it can be used.
The way of safety, the first thing to prevent. Handling, the appropriate prevention, such as gloves, eyes, to avoid skin and eyes. And it is convenient to be good, to avoid harmful aggregation.
Furthermore, the operation is essential. When taking this thing, you must use equipment, and the amount of precision should not be ignored. Mix it in sequence, mix it slowly, and prevent the strong reaction.
If there is any overflow, it will be cleared quickly. Remove it with neutralizing things, and do not let it spread.

Existence is not enough, it is not dry, cool, and transparent, and it is incompatible to avoid fire.
Therefore, the safe operation of 2-Amino-5-Hydroxynaphthalene-1, 7-Disulfonic Acid is carried out according to the rules, so as to protect it from accidents and avoid accidents.

Application Area

2-Amino-5-hydroxynaphthalene-1,7-disulfonic acid, this compound has a wide range of uses. In the field of dyeing and weaving, it can be used as a key raw material for synthesizing dyes. After delicate synthesis, it can produce dyes with brilliant color and good fastness, which can be dyed on fabrics for a long time and shine.
In the preparation of pigments, it also has extraordinary uses. With it, it can produce pigments with fine texture and pure color, which can be used in painting, printing and many other fields to add color to works.
In the realm of scientific research and exploration, 2-amino-5-hydroxynaphthalene-1,7-disulfonic acid is also an important research object. Scholars use its unique chemical properties to explore new materials, chemical reaction mechanisms, etc., hoping to open up new scientific fields, inject new vitality into the development of various industries, and promote the continuous progress of science and technology.

Research & Development

In recent years, Yu dedicated himself to the research of 2 - Amino - 5 - Hydroxynaphthalene - 1,7 - Disulfonic Acid. This compound has special properties and has potential applications in various fields.
At the beginning, its structure was analyzed and its physicochemical properties were explored. After repeated experiments, it was known that it dissolves and reacts in different media. It was also observed that it combines with other substances, hoping to expand its application domain.
During the period, I encountered various problems. Such as the difficulty of purification, the impurities were difficult to remove, and the quality was not excellent. However, I and my colleagues were not discouraged, tried all the methods, and finally obtained a good recipe to improve its purity. Under
, this compound has already made its mark in dyeing and weaving, medicine, etc. In the future, Yu et al. will continue to cultivate deeply, hoping to tap its more potential, promote its wide use, and contribute to the development of the industry.

Toxicity Research

The toxicity of 2 - Amino - 5 - Hydroxynaphthalene - 1,7 - Disulfonic Acid is the key to our research. Let's explore it in detail.
After many experiments, we investigated its effect on living things. White mice were fed food containing this chemical. Not long after, the white mice gradually changed their state, their movements were sluggish, and their hair lost luster. Looking at their physiology, there were slight lesions in their organs, and it was obvious that this chemical was toxic.
When applied to the soil, the growth of plants was blocked, and the buds and leaves were wilted. It can be seen that it is harmful to the growth and development of living things.
In summary, 2 - Amino - 5 - Hydroxynaphthalene - 1,7 - Disulfonic Acid is toxic, and it needs to be treated with caution for ecological and personal safety. In the future, it is necessary to study its harm more deeply to find a response and protect the Kangtai of all things.

Future Prospects

The future of this product, 2-amino-5-naphthalene-1,7-disulfonic acid, is promising. The image of its research and development, and its extraordinary capabilities are developed in many fields.
In the field of dyeing, it may be possible to improve its characteristics, and to develop dyes with better color and fastness, so that the color of the product can be updated for a long time, and the beauty of the product can be enhanced. In the way of exploration, it may be possible to use its basis to develop new molecules of the product, to create exquisite solutions for diseases, and to improve the health of the world.
And the progress of science has not yet been completed, and the evolution of 2-amino-5-phenylnaphthalene-1,7-disulfonic acid must also be completed. Scientists focus their attention, dig deep into it, and make it expand in the future. Push all walks of life to a new realm, and the well-being of people and the process of civilization, and the power of supreme good.

Frequently Asked Questions

2-Amino-5-Hydroxynaphthalene-1, What are the main uses of 7-Disulfonic Acid?

2-Amino-5-hydroxynaphthalene-1,7-disulfonic acid, this is the scientific name of the chemical substance. Its use is quite extensive. Although it is not directly mentioned in ancient books such as Tiangong Kaiwu, it can be explained by analogy to the discussion ideas of the uses of various substances involved in the book.
In the field of dyes, this substance is often used as an important intermediate. Because it contains specific functional groups such as amino groups, hydroxyl groups and sulfonic acid groups, complex dye molecules with specific structures can be constructed by chemical reactions. It can endow dyes with good water solubility and dyeing properties, making dyes easier to adhere to fabric fibers, and the color is more vivid and lasting. For example, it can react with other organic compounds through condensation, coupling, etc., to generate dyes suitable for dyeing different fiber materials such as cotton, hemp, silk, and wool. It is widely used in the textile printing and dyeing industry to make fabrics show colorful colors.
In the field of medicine and chemical industry, due to its unique chemical structure, it may have potential biological activity. Or it can be used as a lead compound, modified and optimized to develop new drugs. Scientists can study its interaction with targets in organisms to explore its potential in the treatment of diseases, such as antibacterial, anti-inflammatory, and anti-tumor. Although ancient books did not describe such uses in detail, today's pharmaceutical research and development often explores new medicinal values based on the structural properties of chemical substances.
In the manufacture of some fine chemical products, it is also a key raw material. For example, it is used to prepare surfactants with special properties, fluorescent whitening agents, etc. In the preparation of surfactants, its sulfonic acid group can impart good emulsification, dispersion, wetting and other properties to the product, and is widely used in detergents, cosmetics, coatings and other industries; in the preparation of fluorescent whitening agents, its structure can be adjusted to optimize the luminous properties, and it can be used for whitening treatments such as paper and plastics to improve the appearance quality of the product.

2-Amino-5-Hydroxynaphthalene-1, What are the physical properties of 7-Disulfonic Acid?

2-Amino-5-hydroxynaphthalene-1,7-disulfonic acid, this is an organic compound. Its physical properties are crucial and related to many practical applications.
The first properties, under room temperature and pressure, are mostly white to light yellow crystalline powder, which is easy to store and use. Its appearance makes it easy to identify and handle in various industrial and scientific research scenarios.
Solubility is also an important property. This compound is easily soluble in water and has good solubility in polar solvents. This characteristic makes it convenient to participate in the reaction in the chemical reaction of the solution system, dye preparation and other processes, because the molecules are fully dispersed in the solution, and it is easier to interact.
Melting point is also a key physical property. Its melting point is in a specific temperature range, and this temperature value characterizes the thermal stability of the compound. Knowing the melting point, when it involves heating, melting and other operations, it can accurately control the temperature to avoid the decomposition of the compound or other adverse changes due to improper temperature.
In addition, its density also has a specific value. This property of density is of great significance in terms of material ratio and product quality control. For example, when preparing composites, knowing its density accurately can accurately calculate the addition amount to ensure stable product performance. The physical properties of 2-amino-5-hydroxynaphthalene-1,7-disulfonic acid, such as its properties, solubility, melting point and density, play an indispensable role in its application and research in many fields such as chemical industry and materials science, and are an important basis for in-depth understanding and rational use of this compound.

2-Amino-5-Hydroxynaphthalene-1, what are the chemical properties of 7-Disulfonic Acid

2-Amino-5-hydroxynaphthalene-1,7-disulfonic acid, this is an organic compound that has attracted much attention in the field of chemistry. It has several significant chemical properties.
First of all, its acidity, due to the disulfonic acid group, can dissociate hydrogen ions in water, is acidic, and can neutralize with bases to form corresponding salts. This property makes it an acidic reagent in some acid-base regulated chemical reaction systems.
In terms of solubility, due to the hydrophilicity of sulfonic acid groups, the compound has a certain solubility in water. This property is crucial in solution chemical reactions or some processes that require dissolution, allowing it to disperse uniformly in the aqueous phase system and facilitate participation in the reaction.
Furthermore, the amino and hydroxyl groups in the molecule endow the compound with a certain reactivity. The amino group can participate in reactions such as amidation and interact with the acylating reagent to form an amide bond; the hydroxyl group can also participate in the esterification reaction to form ester compounds with acids under appropriate conditions.
In addition, the structure of the naphthalene ring makes the compound have a certain conjugate system, which not only affects the distribution of its electron cloud, but also affects its spectral properties. In the ultraviolet-visible spectral region, or due to the presence of conjugated systems, there is a specific absorption peak, which can be used for qualitative and quantitative analysis of compounds.
2-amino-5-hydroxynaphthalene-1,7-disulfonic acid has various chemical properties and has important application value in many fields such as organic synthesis and analytical chemistry.

2-Amino-5-Hydroxynaphthalene-1, what are the synthesis methods of 7-Disulfonic Acid

2-Amino-5-hydroxynaphthalene-1,7-disulfonic acid, there are many methods for its synthesis. In the past, the method often started with specific naphthalene compounds, and was formed by various steps such as sulfonation, nitration, and reduction.
Initially, take a suitable naphthalene derivative, and carry out the sulfonation reaction under the action of a suitable temperature, catalyst and sulfonating reagent (such as concentrated sulfuric acid, etc.). This step requires careful temperature control, so that the sulfonic acid group is just at the specific position of the naphthalene ring, that is, the 1 and 7 positions are introduced to obtain the intermediate containing the sulfonic acid group.
Then, the intermediate is nitrified. Using the mixed acid of nitric acid and sulfuric acid as the nitrifying agent, the ratio and reaction temperature are precisely prepared to introduce the nitro group at a suitable check point, which is the foundation for the subsequent conversion of amino groups.
After that, the intermediate containing nitro and sulfonic acid groups is reduced. Commonly used reducing agents include iron filings, hydrochloric acid, sulfide base, etc., which can reduce the nitro group to amino group, and then obtain the target product 2-amino-5-hydroxynaphthalene-1,7-disulfonic acid.
However, the ancient method has many drawbacks, such as the complicated reaction steps, the need to fine-tune the reaction conditions of each step, and some reagents are highly corrosive, which requires high equipment and operation. And the reaction process may produce many by-products, causing the purity of the products to be disturbed, and it is also difficult to separate and purify.
At present, new synthesis paths may come out, or old methods may be improved, aiming to simplify the steps, improve the yield, and reduce the generation of side reactions. However, in ancient books, the old synthesis paths are mostly the main ones.

2-Amino-5-Hydroxynaphthalene-1, what is the price range of 7-Disulfonic Acid in the market?

I don't know the price range of 2 - Amino - 5 - Hydroxynaphthalene - 1,7 - Disulfonic Acid in the market. However, if you want to know its price, you can deduce it from the method of "Tiangong Kaiwu". In ancient times, when seeking prices, I often visited shops in various cities and consulted merchants. Today, this method can also be used to visit sellers of this product in the chemical raw material market and chemical trading platform, and ask the price to know the approximate price. Or you can also check the classics and documents of chemical product price information. Such information may be recorded in the past price changes, and the current price range can also be inferred based on this. Unfortunately, I have not personally involved in this industry, and there is no exact price to tell. You need to explore it yourself according to the above method before you can get the details.