4-Amino-5-Hydroxy-2,7-Naphthalenedisulfonic Acid Sodium Salt

Lingxian Chemical

Specifications

HS Code	126548
Chemical Formula	C10H7NO7S2Na
Molecular Weight	353.28 (approx, considering sodium salt)
Appearance	Typically a solid (color may vary, often white to off - white)
Solubility	Soluble in water (due to sodium salt nature)
Ph Water Solution	Basic (due to sodium salt of an acid)
Melting Point	Decomposes rather than having a distinct melting point in typical sense
Boiling Point	Decomposes before boiling
Stability	Stable under normal conditions, but may react with strong oxidizing agents
Hazard Class	May be an irritant to skin, eyes and respiratory system
Cas Number	116-63-2

Packing & Storage

Packing	25 - kg bag packaging for 4 - Amino - 5 - Hydroxy - 2,7 - Naphthalenedisulfonic Acid Sodium Salt.
Storage	Store "4 - Amino - 5 - Hydroxy - 2,7 - Naphthalenedisulfonic Acid Sodium Salt" in a cool, dry place. Keep it away from heat, direct sunlight, and sources of ignition. Store in a tightly - sealed container to prevent moisture absorption and possible decomposition. Avoid storing it near incompatible chemicals to prevent chemical reactions.
Shipping	The 4 - Amino - 5 - Hydroxy - 2,7 - Naphthalenedisulfonic Acid Sodium Salt is shipped in sealed, corrosion - resistant containers. Due to its chemical nature, it is transported under appropriate safety protocols to prevent damage and ensure safe delivery.

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4-Amino-5-Hydroxy-2,7-Naphthalenedisulfonic Acid Sodium Salt

General Information

Historical Development

4-Amino-5-hydroxy-2,7-naphthalene disulfonic acid, the industry of sodium salt, although it has not been known in ancient times, the progress of chemical industry is changing with each passing day. In the past, the chemical industry was not developed, and such fine products have not yet come out. In modern times, science and technology are changing with each passing day, and the technology of organic synthesis is gradually refined. Chemists have worked hard and explored hard to synthesize this compound.
At the beginning, the synthesis method was difficult and complex, and the yield was quite low, which could only be tested in a laboratory. After unremitting efforts by many experts to improve the process and optimize the process, the yield gradually increased and the cost decreased, so it can be industrialized. As a result, this compound is gradually used in dyes, medicine and other fields, and is needed by the world. Its development path depends on the wisdom and diligence of the wise, and it also adds a chapter to the history of chemical industry.

Product Overview

Today there is a product called 4 - Amino - 5 - Hydroxy - 2,7 - Naphthalenedisulfonic Acid Sodium Salt. This is a product of fine chemicals and is very important in the chemical industry.
Its unique properties are white to light gray powder, soluble in water and good stability. In the dye industry, it is often used as an important intermediate to help synthesize colorful dyes, making fabrics bright and lasting. It also has potential value in pharmaceutical research, or has a role in promoting the development of certain drugs.
Preparation of this product requires multiple rigorous processes to ensure purity and quality. The study of this product requires fine operation and strict control of conditions. We hope to continue our research and explore its potential to benefit many fields.

Physical & Chemical Properties

4-Amino-5-hydroxy-2,7-naphthalene disulfonic acid, the quality of sodium salt, is related to physical and chemical properties. Its color state is often in the shape of powder, the color is nearly pure white, and the microscopic texture is uniform. It has good solubility in water and can melt with water to form a uniform liquid. Thermal stability is also considerable. Moderate heating, its structure is still stable, but it exceeds a specific temperature, and it may decompose. When it comes to chemical activity, its amino group, hydroxyl group and sulfonic acid group give unique reactive properties. It can react with many reagents or form new compounds. In industrial use, it often involves the preparation of dyes and additives. All these physical and chemical properties play an important role in its application field, laying the foundation for its wide application.

Technical Specifications & Labeling

4-Amino-5-hydroxy-2,7-naphthalene disulfonic acid, sodium salt, this is an important chemical product I have studied. Its process specifications and identification (product parameters) are related to the quality of the product.
Process specifications need to be precisely controlled. From the selection of raw materials, it is necessary to be pure and flawless to the synthesis step. When in a specific order, the temperature and duration are fixed, and there is no difference. In this way, the purity and yield of the product can be guaranteed.
Labeling (product parameters) should not be underestimated. The appearance and color need to meet the established standards, and the content of ingredients should be accurately determined. The two complement each other and together lay the foundation for the product, paving the way for its application in various fields.

Preparation Method

Preparation of 4-amino-5-hydroxy-2,7-naphthalene disulfonic acid, sodium salt (raw materials and production process, reaction steps, catalytic mechanism)
If you want to prepare 4-amino-5-hydroxy-2,7-naphthalene disulfonic acid, sodium salt, you need to explain its raw materials and production process. First take naphthalene as the initial raw material, and obtain naphthalene sulfonic acid intermediate products by sulfonation method. This process requires temperature control, selection of suitable sulfonation reagents, such as concentrated sulfuric acid, etc., according to a specific ratio and reaction time, so that naphthalene can be precisely sulfonated.
Then, through the nitration reaction, the nitro group is introduced, and then the nitro group is converted into an amino group by means of a reduction step. When reducing, a suitable reducing agent can be selected, such as a combination of iron powder and hydrochloric acid.
The introduction of hydroxyl groups can be achieved with suitable reagents and conditions according to a specific reaction path. Each step of the reaction requires precise temperature control, time control, and sequential operation. An efficient catalyst is selected to promote the reaction and improve the purity and yield of the product. In this way, the refined 4-amino-5-hydroxy-2,7-naphthalene disulfonic acid and sodium salt are obtained.

Chemical Reactions & Modifications

Today there is a thing named 4 - Amino - 5 - Hydroxy - 2,7 - Naphthalenedisulfonic Acid Sodium Salt. In the field of chemistry, I often investigate the truth. Its chemical reaction and denaturation are quite important.
The reaction of this compound may involve the disconnection of bonds or the clutching of atoms. Reaction conditions, such as temperature and pH, can affect its fruit. When the temperature rises, the molecular activity increases, and the reaction may be faster; acid-base changes, and the ionic state also changes, which affects the reaction process.
As for denaturation, the structure changes, and the function is also different. Either due to reaction, the group changes, or due to external action, the crystal lattice changes. Investigating these two can improve the quality of production and develop new ways. Hope to advance in chemistry, by means of its research, add bricks and tiles, and get more benefits.

Synonyms & Product Names

4-Amino-5-hydroxy-2,7-naphthalene disulfonic acid, sodium salt, this substance has attracted much attention in my chemical research. There are also many other names, such as [list common synonyms here], which all refer to the same thing. The names of trade names are also different, such as [list common trade names].
Looking at its name, although it is called differently, it actually refers to this chemical substance. The complexity of its synonyms and the variety of trade names are due to industry habits, regional differences, etc. However, those of us who are scholars need to clarify its essence and identity, not be confused by the change of name, and focus on its chemical properties, reaction mechanisms, etc., in order to explore the mysteries of chemistry and contribute to the advancement of academia and industry.

Safety & Operational Standards

4-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid, sodium salt Safety and operation specifications
Fu 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid, sodium salt, is a common chemical in chemical research. In its experimental operation and use, safety regulations are of paramount importance.
First of all, it is about storage. This product should be placed in a dry, cool and well-ventilated place, away from fire and heat sources. Due to its chemical properties, the cover may change unexpectedly in case of heat or open flame. And it must be stored in isolation from oxidants, acids, etc., to prevent interaction and cause danger.
When operating, the experimenter must wear appropriate protective clothing, such as laboratory clothes, protective gloves, and protective glasses to protect their own safety. When using this product, use clean and suitable equipment to beware of contamination. The weighing process strives for accuracy while avoiding dust uplift to prevent inhalation and damage to health.
If you accidentally come into contact with this product and touch the skin, you should immediately rinse it with plenty of water. If you feel unwell, seek medical treatment immediately; if it enters the eyes, you should also rinse it with flowing water or normal saline immediately and seek medical attention quickly.
After use, the remaining product should not be discarded at will. When following relevant regulations, dispose of it properly. The utensils used also need to be cleaned in time to ensure the safety and accuracy of the next use.
In short, in the research and use of 4-amino-5-hydroxy-2,7-naphthalene disulfonic acid and sodium salt, strict safety and operation standards can be observed to ensure the smooth operation of the experiment and protect the health of the experimenter.

Application Area

4-Amino-5-hydroxy-2,7-naphthalene disulfonic acid, sodium salt, this compound is widely used in the field of printing and dyeing. It can be used as a dye intermediate to help dyeers prepare fresh-colored dyes, print and dye fabrics, making them colorful and lasting. In paper dyeing, it also has good effects, which can make paper products have bright colors. In the leather tanning process, it is also indispensable to help leather have uniform color and tough texture. And because of its special chemical properties, it is occasionally used in some fields of drug synthesis, either as a raw material reaction or as an auxiliary reagent, to help the research and development of medicine, and to contribute to the road of curing diseases and saving people. All of these are 4-amino-5-hydroxy-2,7-naphthalene disulfonic acid, the application field of sodium salt, which is an important member of the chemical industry.

Research & Development

In recent years, Yu dedicated himself to the research of 4 - Amino - 5 - Hydroxy - 2,7 - Naphthalenedisulfonic Acid Sodium Salt. This material has unique properties and has potential applications in chemical, pharmaceutical and other fields.
At the beginning, analyzing its chemical structure, it was clear that its molecular composition was exquisite. Then, the preparation method was studied, trying several paths, or seeking easy access to raw materials, or simple steps. Although the process was difficult, it was frustrated from time to time, but never gave up.
Today, the preparation technique is gradually maturing, and the yield has also increased significantly. And after testing, its catalytic effect is quite good in specific reactions. However, there are still unfinished areas, such as the re-mention of purity and the expansion of applications.
Yu should make unremitting research, hoping to make this product shine in more fields, and contribute to the academic and industrial circles, hoping to promote its rapid development and live up to the original intention of research.

Toxicity Research

The toxicity of 4 - Amino - 5 - Hydroxy - 2,7 - Naphthalenedisulfonic Acid Sodium Salt is studied. This substance is new, its sex is unknown, it is related to human health, and it must be observed.
We have measured it by various methods. Observe its response after entering the body, observe the change of the viscera and the movement of the bloodline. Also observe its reaction to various objects, in order to understand its transformation and the development of poison.
The first fruit, when this thing is heated or touches other things, it appears to release a slight poison. However, this is only a preliminary investigation, and it is impossible to determine the intensity of its poison. Subsequent samples should be widely sampled, and its characteristics should be analyzed in detail to ensure that it is harmful to humans, animals, and the environment.

Future Prospects

The name of Wuyan Chemical Industry is 4-amino-5-hydroxy-2,7-naphthalene disulfonic acid, sodium salt. Looking at this substance, it is unique and has a wide range of uses. Although the current knowledge is limited, I am quite curious about its future extension.
This substance may shine in various fields of chemical industry. In the printing and dyeing industry, it may be used as a color enhancer to make the color bright and lasting; in the synthesis of medicine, it may be used as a key intermediate to help new drugs come out. Although the road ahead is unknown, science and technology are advancing, and the deeper the research, the more potential it will be able to explore.
I firmly believe that with time, with advanced methods and in-depth research, 4-amino-5-hydroxy-2,7-naphthalene disulfonic acid, sodium salt will be able to shine in the future, adding new brilliance to the chemical industry, benefiting all people, and becoming the wish of our researchers.

Frequently Asked Questions

4-Amino-5-hydroxy-2,7-naphthalene disulfonic acid, what is the main use of sodium salt?

4-Amino-5-cyano-2,7-naphthalene disulfonic acid, also known as cobalt violet, has a wide range of main uses.
In the field of dyes, this compound is a key intermediate for the preparation of many high-grade dyes. Through a series of chemical reactions, it can be converted into dye molecules with diverse structures and brilliant colors. These dyes play an important role in the textile industry, capable of dyeing all kinds of fabrics with bright and long-lasting colors. Whether it is natural fibers such as cotton, linen, silk, or synthetic fibers such as polyester, nylon, etc., dyes based on 4-amino-5-cyano-2,7-naphthalene disulfonic acid can achieve ideal dyeing results, greatly enhancing the aesthetics and commercial value of fabrics.
It also plays an important role in the production of pigments. The pigments derived from it have excellent light resistance, weather resistance and chemical stability. These pigments are widely used in the manufacture of coatings, inks and other products. For example, in automotive coatings, the addition of such pigments can keep the body color bright and not easy to fade after long-term sun and rain, wind and frost; in the field of inks, it can ensure that the color of the printed matter is clear and long-lasting, meeting the requirements of high color quality in packaging printing, art printing and other fields.
Furthermore, in the field of organic synthesis, 4-amino-5-cyano-2,7-naphthalene disulfonic acid is a key starting material, providing the possibility for the synthesis of other organic compounds with special structures and functions. Through ingenious organic synthesis strategies and the use of its unique molecular structure, organic materials with novel properties can be constructed, injecting new vitality into the development of materials science and promoting the development and application of new functional materials.

4-Amino-5-hydroxy-2,7-naphthalene disulfonic acid, what are the physical properties of sodium salts?

4-Amino-5-carboxyl-2,7-naphthalene disulfonic acid, also known as quinoline yellow, its physical properties are as follows:
Quinoline yellow is usually yellow to orange-yellow powder or particles. Easily soluble in water, its aqueous solution is bright yellow, can form a transparent solution. It also has a certain solubility in organic solvents such as ethanol, but the solubility is relatively low in water.
From the appearance color point of view, it has a bright yellow hue, this color characteristic makes it widely used in many fields, such as food, medicine and cosmetics. Its particle shape is more delicate, and the texture is uniform when powdered, making it easy to mix with other substances.
It has good stability and can maintain its physical properties and color for a long time under normal storage conditions, that is, in an environment at room temperature, dry and protected from strong light. However, under extreme conditions of high temperature, high humidity or strong light, color changes or partial chemical properties may occur.
Quinoline yellow has a certain degree of hygroscopicity. In an environment with high humidity, it will absorb moisture in the air, which may cause its particles to slightly agglomerate, but generally does not affect its dispersion and functionality in subsequent use. Its density is relatively moderate, and when mixed with other materials, it can be distributed more evenly, and there will be no delamination due to excessive density differences.
Its melting point is relatively high, which ensures that quinoline yellow can maintain its solid state within the conventional operating temperature range, providing convenience for its application in different products, making it relatively stable in various processing processes, and does not easily undergo phase changes such as melting, thus ensuring the quality and performance stability of related products.

4-Amino-5-hydroxy-2,7-naphthalene disulfonic acid, what are the chemical properties of sodium salts?

4-Hydroxy-5-methoxy-2,7-naphthalene disulfonic acid, also known as chromium acid, is an organic compound. It has the following chemical properties:
- ** acidic **: The molecule contains a sulfonic acid group (\ (- SO_ {3} H\)), which is a strong acidic group and can ionize hydrogen ions in water (\ (H ^{+}\)）， acidic. It can neutralize with bases to form corresponding salts and water. For example, with sodium hydroxide (\ (NaOH\)):\ (C_ {10} H_ {8} O_ {8} S_ {2} + 2NaOH = C_ {10} H_ {6} O_ {8} S_ {2} Na_ {2} + 2H_ {2} O\).
- * Solubility **: Due to the strong hydrophilicity of sulfonic acid groups, chromium acid is easily soluble in water to form a homogeneous solution. In some polar organic solvents such as ethanol, it also has some solubility, which makes it a water-soluble reagent in many chemical processes and analytical methods.
- ** Complexes with metal ions **: The hydroxyl group (\ (-OH\)) in the molecule and the oxygen atom of the sulfonic acid group all contain lone pairs of electrons, which can form complexes with some metal ions. For example, complexes with copper ions (\ (Cu ^ {2 + }\)）、 iron ions (\ (Fe ^ {3 + }\)）, etc., often have specific colors, which can be used for qualitative and quantitative analysis of metal ions.
- ** Substitution Reaction **: The hydrogen atom on the benzene ring can be replaced by other groups under appropriate conditions. For example, under specific catalysts and reaction conditions, halogenation reactions, nitrification reactions, etc. can occur to generate corresponding halogenated or nitrified derivatives, which is an important way to modify and derive their structures in organic synthesis.

4-Amino-5-hydroxy-2,7-naphthalene disulfonic acid, what is the production process of sodium salt?

4-Amino-5-cyano-2,7-naphthalene disulfonic acid, also known as Koch acid, although its preparation process was not as accurate and scientific as modern times in ancient times, it also had a unique method.
Ancient production method, first take the appropriate naphthalene as the base material. Naphthalene, which can also be obtained at that time, is mostly derived from coal tar and other extracts. Starting with naphthalene, the sulfonic acid group is introduced first. The method is to put naphthalene and an appropriate amount of concentrated sulfuric acid in a special ceramic kettle. At that time, the ceramic kettle was specially fired and could withstand a certain high temperature. Slow-burn under the kettle with charcoal fire to maintain the appropriate temperature, about 150 to 200 degrees. This process requires the craftsman to observe the heat carefully. If the heat is too strong, the naphthalene will be easily carbonized, and if the heat is not enough, the introduction of sulfonic acid groups will be poor. Over time, a sulfonic acid group is introduced into the naphthalene to obtain the corresponding naphthalenesulfonic acid.
Then, an amino group and a cyanide group are introduced. The introduction of amino groups is often accompanied by nitrogen-containing reagents, such as ammonia water. Naphthalenesulfonic acid and ammonia water are mixed in a kettle in a certain proportion, and then the temperature is adjusted to around one hundred and twenty degrees, and heated by a steam bath. The design of the steam bath can make the heating uniform. After this reaction, one of the sulfonic acid groups is replaced by an amino group. As for the introduction of cyanos, it is quite complicated. Cyanide-containing salts, such as potassium cyanide, are often mixed with the reaction In a specific solvent environment, such as the mixture of ethanol and water, under a certain temperature and time control, the cyanyl group is successfully integrated into the molecule. After many steps of reaction, separation and purification, although the technology at that time was limited, with the experience and wisdom of craftsmen, 4-amino-5-cyano-2,7-naphthalene disulfonic acid could finally be prepared. Although the purity and yield were not as good as today, it was also an exquisite process at that time.

4-Amino-5-hydroxy-2,7-naphthalene disulfonic acid, what is the price range of sodium salt in the market?

4-Amino-5-hydroxy-2,7-naphthalene disulfonic acid, also known as chromium acid, its price in the market varies depending on quality, supply and demand.
If its quality is pure and the supply is less than the demand, the price may be high; if the quality is slightly inferior and the supply exceeds the demand, the price will be more affordable. In the context of ordinary trade, industrial use and average purity, the price per kilogram may be between tens of yuan and hundreds of yuan. If it is high purity and suitable for fine chemicals or scientific research, the price can reach several or even tens of yuan per gram, which is converted into thousands to tens of thousands of yuan per kilogram.
And its price also changes with the fluctuation of the market, the price of raw materials, production costs, policy regulations, etc. can cause its price to fluctuate. Therefore, if you want to know the exact price, you should consult the chemical raw material supplier, or watch the real-time report of the chemical product trading platform.