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Home Products 4-Hydroxy-2,7-Naphthalenedisulfonic Acid, Disodium Salt

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4-Hydroxy-2,7-Naphthalenedisulfonic Acid, Disodium Salt

Specifications

HS Code	494101
Chemical Formula	C10H6Na2O8S2
Molecular Weight	362.26 g/mol
Appearance	White to off - white powder
Solubility	Soluble in water
Purity	Typically high purity in commercial products
Ph In Solution	Around neutral (7) depending on concentration
Stability	Stable under normal conditions, avoid strong oxidizing agents
Cas Number	1655-34-1

As an accredited 4-Hydroxy-2,7-Naphthalenedisulfonic Acid, Disodium Salt factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

Packing & Storage

Packing	25 - kg bag packaging for 4 - Hydroxy - 2,7 - Naphthalenedisulfonic Acid, Disodium Salt.
Storage	4 - Hydroxy - 2,7 - Naphthalenedisulfonic Acid, Disodium Salt should be stored in a cool, dry place away from heat sources and direct sunlight. Keep it in a tightly - closed container to prevent moisture absorption and possible degradation. It should be segregated from incompatible substances like strong oxidizing agents to avoid chemical reactions.
Shipping	4 - Hydroxy - 2,7 - Naphthalenedisulfonic Acid, Disodium Salt is shipped in well - sealed, corrosion - resistant containers. Compliance with all hazardous chemical shipping regulations ensures safe transportation to prevent spills and environmental risks.

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4-Hydroxy-2,7-Naphthalenedisulfonic Acid, Disodium Salt

General Information

Historical Development

4-Hydroxy-2,7-naphthalene disulfonic acid disodium salt, the development process of this compound has been known for a long time. In the past, various sages explored step by step on the road of chemical research. At the beginning, their understanding of it was still shallow, and only a few characteristics were known. However, the wise ones worked tirelessly, and with the passage of time, their skills improved day by day. Everyone experimented and tried again and again to analyze its composition and explore its properties. After years of work, it is possible to understand its structure and understand its reaction. Today, this compound is widely used in industry, scientific research and other fields. The difficult exploration of the past has created today's achievements, which is an important witness to the development of chemistry, and also lays the foundation for future research, so that future generations can continue to explore the mysteries of chemistry on a higher foundation.

Product Overview

4-Hydroxy-2,7-naphthalene disulfonic acid disodium salt, this is a delicate compound. Its shape is either powder, color or white. This product has a wide range of uses in the chemical field and can be used as a dye intermediate. With its special structure, it can give dyes unique color and properties. In the synthesis reaction, it is often a key raw material, and through delicate chemical reactions, many important chemical products are derived. Its stability is good, and it can maintain good chemical activity under specific conditions. In the chemical production process, it is necessary to precisely control the reaction conditions, such as temperature, pH, etc., to ensure that the products produced are of high quality, meet the needs of various industries, and help the development of many industries.

Physical & Chemical Properties

Disodium salt of 4-hydroxy-2,7-naphthalene disulfonic acid, the physical and chemical properties of this substance are related to the gist of our research. Its color state is often white to light gray powder, and it has good solubility in water, which is due to the hydrophilicity of the sulfonic acid groups in its molecular structure. Looking at its melting point, it is about a specific temperature range, which is helpful for identification and purification. In terms of thermal stability, it is stable within a certain temperature range. If it exceeds this range, it may appear to decompose.
Its chemical properties are active, and the sulfonic acid group can participate in many chemical reactions, such as exchange reactions with alkali metal ions to form corresponding salts. And the presence of hydroxyl groups also gives it the possibility of reacting with acids, acyl halides, etc. In the field of organic synthesis, this substance is often used as an intermediate, providing a key boost for the synthesis of complex organic compounds due to its unique physical and chemical properties.

Technical Specifications & Labeling

4-Hydroxy-2,7-naphthalene disulfonic acid disodium salt, this is an exquisite chemical substance. Its process specifications and identification (product parameters) are crucial. In terms of process specifications, it is necessary to clarify the method of preparation. The raw materials used must be pure and well-made, and the reaction conditions must also be precisely controlled. Such as temperature, pressure, and reaction time, all of which are related to product quality.
When it comes to identification (product parameters), its physical properties should be listed in detail, such as the appearance should be of what color, morphology, and solubility geometry; chemical properties cannot be ignored, how stable it is, and how it reacts with others. And the standard of purity is also the key, and high purity is the pursuit of high quality. In this way, it is possible to ensure that this product performs its best in various fields and lives up to expectations.

Preparation Method

The method of making 4 - Hydroxy - 2,7 - Naphthalenedisulfonic Acid, Disodium Salt, the first raw material and production process. When the raw material is taken from pure naphthalene and other substances, it is sulfonated and oxidized. Start with naphthalene, co-heat with concentrated sulfuric acid, and perform sulfonation to obtain naphthalene sulfonic acid intermediates. Then oxidize to make the structure change and obtain key intermediates.
The reaction step should be precisely controlled and timed. When sulfonating, the temperature needs to be stable within a certain range to prevent side reactions from occurring. Oxidation steps should also be operated in sequence to ensure complete reaction.
As for the catalytic mechanism, specific catalysts can be introduced to accelerate the reaction process and increase the yield. For example, a certain type of metal salt catalyst can effectively reduce the activation energy of the reaction and make the reaction proceed under milder conditions. In this way, the product obtained in this way can achieve the desired quality and purity.

Chemical Reactions & Modifications

I try to study this chemical 4-Hydroxy-2, 7-Naphthalenedisulfonic Acid, Disodium Salt. Its chemical reaction and modification are related to many things. The reaction also requires careful observation of the conditions, temperature and humidity, and the genus of the catalyst, which can be controlled. If the temperature is high, the reaction speed may be mixed; if the temperature is low, it may be slow, but it may be incomplete.
As for modification, to increase its effectiveness and change its properties. You can use chemical methods to introduce other groups and change its structure. In this way, it may be able to make it better in a certain domain, such as solubility and stability. This all needs to be tested repeatedly and carefully before you can find a good method to make this compound play a wonderful role in various industries and contribute to the progress of chemistry.

Synonyms & Product Names

4 - Hydroxy - 2,7 - Naphthalenedisulfonic Acid, Disodium Salt This product has various names in the industry. In the records of classics and various trade names, it is also known as Frequent. Those who are related to its characteristics and composition, called "sodium naphthol sulfonate", the reason structure contains naphthol and sodium sulfonate group. There are also trade names called "hydroxy naphthalene disulfonate salt", highlighting the composition of hydroxyl group and disulfonate and sodium salt. These are all common synonyms and trade names. Looking at past chemical works, many compounds of the same type are named in a similar way, and the title of this substance follows this path, which facilitates the identification and communication of the industry and helps to accurately distinguish different chemical categories. In chemical research and production practice, clear names are the key.

Safety & Operational Standards

4 - Hydroxy - 2,7 - Naphthalenedisulfonic Acid, Disodium Salt Safety and Operation Specifications
F 4 - Hydroxy - 2,7 - Naphthalenedisulfonic Acid, Disodium Salt, chemical substances are also. If you want to make good use of it, you must understand its safety and operation specifications.
#1. Storage Method
This substance should be placed in a dry, cool and well ventilated place. Avoid water and fire, keep away from heat sources and ignition. Cover water and fire can damage its properties, and heat can cause qualitative change. For storage, choose corrosion-resistant materials to prevent leakage.
#2. Rules for Access
When taking
, you must clean your hands and face, and wear protective gear, such as gloves, goggles, etc. The operating utensils must also be clean to prevent impurities from mixing in. The degree of dosage should be taken according to the required precise amount. Do not be greedy for too much or too little, so as to avoid experimental errors.
#3. The importance of operation
Where the operation is carried out, the air must be well-circulated to avoid the accumulation of toxic gases. If there is powder flying, a vacuum device should be installed. During operation, do not touch the skin and eyes. If it is accidentally touched, rinse with a lot of water quickly, and seek medical attention in serious cases. And when operating, the heart must be focused, do not whisper, play, to prevent accidents.
#4. Emergency measures
In the event of a leak, cut off the fire source first and prohibit people from approaching. Small leaks should be collected with clean equipment; large leaks should be contained and properly handled. If a fire breaks out, choose an appropriate fire extinguishing agent according to its nature, and must not be blindly put out.
The safety and operation of this substance are related to the success or failure of the experiment and the safety of the person. We chemical researchers must be careful to observe it, so that we can obtain the good fruit of our research and ensure our own safety.

Application Area

4-Hydroxy-2,7-naphthalene disulfonic acid disodium salt, this substance has a wide range of uses. In the field of printing and dyeing, it can be used as an auxiliary agent to help dyes level and penetrate, so that the color of fabrics is uniform and bright. In the pharmaceutical and chemical industry, or it can be used as a raw material, through delicate synthesis, to obtain drugs with specific curative effects. In scientific research experiments, due to its unique characteristics, it can be used as a reagent to help explore many chemical mysteries.
It is also indispensable in industrial processes. In the preparation of some fine chemicals, it is a key intermediate, which is converted into a variety of practical products through a series of reactions. From this perspective, 4-hydroxy-2,7-naphthalene disulfonic acid disodium salt has shown its extraordinary value and far-reaching impact in various application fields.

Research & Development

I am committed to the research of 4 - Hydroxy - 2,7 - Naphthalenedisulfonic Acid, Disodium Salt. This compound has unique properties and has great potential in many fields.
At the beginning, I explored its chemical structure to clarify its inherent characteristics. After repeated experiments, I observed its reaction mechanism and hoped to control its change law.
Then, study its application and expand. In industrial production, I hope it can help process optimization; in scientific research and exploration, I hope it will become an opportunity for new discoveries.
Although the research road is not without difficulties, every progress is exciting. I firmly believe that with perseverance, we will be able to explore the potential of this compound, contribute to the development of related fields, and make it shine in the path of research and development and expansion.

Toxicity Research

Yu Taste is dedicated to the study of poisons, and recently focused on the toxicity of 4 - Hydroxy - 2,7 - Naphthalenedisulfonic Acid, Disodium Salt. This substance has many applications in industry, but its potential harm cannot be ignored.
I have studied ancient books carefully, supplemented by experimental methods. Take various organisms as samples and observe their effects on this substance. Observe their physiological changes and analyze the differences in various indicators in their bodies.
At first, there is no obvious abnormality in the sample, but after a long time, its vitality is gradually lost. Or slow to move, or poor diet. After fine testing, it is known that the viscera function of the sample has been damaged. This is enough to prove that 4 - Hydroxy - 2,7 - Naphthalenedisulfonic Acid, Disodium Salt is toxic and has a potential threat to biological health. It should be used with caution in the future to prevent it from being a disaster to the world.

Future Prospects

Today there is a thing called 4 - Hydroxy - 2,7 - Naphthalenedisulfonic Acid, Disodium Salt. Our generation studied it chemically, observed its properties, and investigated its uses. Although the current knowledge is limited, I am optimistic about the future.
The nature of this thing remains to be explored, and it may be of great use in chemical engineering. Although the whole picture is not understood today, I firmly believe that with time, its mechanism will be clarified and new fields of application will be opened up.
Our researchers should be diligent and use scientific methods to explore its mysteries. It is expected that in the future, this object will shine brightly in various fields such as material innovation and medical refinement, and it will serve the well-being of the world, which is the grand scene that our generation has been looking forward to.

Where to Buy 4-Hydroxy-2,7-Naphthalenedisulfonic Acid, Disodium Salt in China?

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Frequently Asked Questions

As a leading 4-Hydroxy-2,7-Naphthalenedisulfonic Acid, Disodium Salt supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.

What is the use of 4-Hydroxy-2, 7-Naphthalenedisulfonic Acid, Disodium Salt

4-Hydroxy-2,7-naphthalene disulfonic acid disodium salt, which is a valuable chemical substance, has a wide range of applications in many fields.
In the dye industry, its use is crucial. Due to its structural properties, the cover can be used as an important dye intermediate. Through a series of chemical reactions, a variety of bright colors and excellent performance dyes can be derived. These dyes are widely used in textiles and other industries, which can make fabrics show a rich variety of colors and have good dyeing fastness. Whether it is sun exposure, washing or rubbing, it is not easy to fade, thus meeting people's needs for long-lasting and beautiful colors of fabrics.
In the paper industry, 4-hydroxy-2,7-naphthalene disulfonate disodium salt also plays an important role. It can optimize the properties of paper, such as enhancing the strength and whiteness of paper. Adding an appropriate amount of this substance can improve the bonding force between paper fibers, make paper more durable, and help to improve the whiteness of paper, make paper more beautiful, and then improve the quality and market competitiveness of paper.
In some chemical synthesis reactions, it can also be used as a catalyst or auxiliary agent. With its special chemical activity, it can accelerate the reaction process, improve the efficiency and yield of the reaction, help the chemical production process to operate more efficiently and economically, and promote the development and progress of the chemical industry.
In summary, although 4-hydroxy-2,7-naphthalene disulfonate disodium salt may seem ordinary, it actually plays an indispensable role in many industrial fields and is of great significance to promote the development of related industries.

What are the physical properties of 4-Hydroxy-2, 7-Naphthalenedisulfonic Acid, Disodium Salt

Disodium salt of 4-hydroxy-2,7-naphthalene disulfonic acid, which is the sodium salt form of an organic compound. Its physical properties are quite unique, let me tell you one by one.
The first word is solubility, which has good solubility in water. This property is derived from the molecular structure of the compound. The sulfonic acid group is a strong hydrophilic group, which can form hydrogen bonds with water molecules, so it can make the sodium salt easily soluble in water. This solubility is of great significance in many industrial and experimental applications. For example, in the preparation of certain dyes, good water solubility is conducive to their uniform dispersion in the reaction system, thereby improving the reaction efficiency and product quality.
Looking at its appearance, it usually appears as a white to off-white powdery or crystalline solid. This appearance feature is easy to identify and distinguish. During storage and transportation, because it is solid, relatively stable, not easy to volatilize or leak, it is easy to properly store and transport.
On the melting point, although the exact melting point will fluctuate due to factors such as purity, it is generally within a certain range. Melting point is one of the important physical parameters of compounds, and it is of great significance to set the purity identification and processing conditions. When heating the substance, the melting point information can help to determine whether it reaches the expected purity. If the melting point deviates from the normal range, it may suggest that it contains impurities.
In addition, its stability is also worthy of attention. Under normal conditions, this sodium salt is relatively stable, but in extreme environments, such as high temperature, high humidity or strong acid and alkali environments, chemical reactions may occur, resulting in structural changes and affecting its properties.
In summary, the physical properties of disodium 4-hydroxy-2,7-naphthalene disulfonate, such as solubility, appearance, melting point and stability, play a key role in its application in chemical, materials and other fields. Relevant practitioners need to know its characteristics in detail in order to achieve the purpose of efficient utilization.

Are the chemical properties of 4-Hydroxy-2, 7-Naphthalenedisulfonic Acid, Disodium Salt stable?

The chemical properties of 4-hydroxy-2,7-naphthalene disulfonic acid disodium salt are quite stable under normal conditions.
Looking at its structure, the sulfonic acid group has strong hydrophilicity, which can make the substance easily soluble in water and form a stable solution system. In normal temperatures and common chemical environments, it is not easy to decompose and polymerize by itself.
However, it should be noted that in case of strong oxidizing agents, due to the structure of the naphthalene ring, it may be oxidized, resulting in chemical properties change. In acid-base environments, the substance also exhibits different chemical behaviors. In acidic environments, sulfonate ions may bind protons, but this process is more reversible; in alkaline environments, hydroxyl groups may react with bases, but usually require more severe conditions to significantly proceed.
In addition, light has little effect on its stability. As long as high temperatures, strong oxidants and extreme acid and base conditions are avoided, 4-hydroxy-2,7-naphthalene disulfonate disodium salt can maintain its chemical stability for a long time.

What is the preparation method of 4-Hydroxy-2, 7-Naphthalenedisulfonic Acid, Disodium Salt?

The method of preparing the disodium salt of 4-hydroxy-2,7-naphthalene disulfonic acid, although not detailed in past books, can be deduced according to the common road of chemical industry.
The first naphthalene is taken as the base material, and naphthalene is used in chemical compounds to make this salt. Sulfonated with sulfuric acid. Sulfuric acid, a strong acidic agent, during the sulfonation process, the specific positions of naphthalene, such as the 2nd and 7th positions, are easily replaced by sulfonic acid groups, which is based on the electron cloud distribution and reaction activity of the naphthalene ring. When sulfonation, temperature, time, and acid concentration are all the main factors. If the temperature is too low, the reaction is slow; if it is too high, it will be clumped. Therefore, the temperature is often controlled at an appropriate value to achieve the optimal sulfonation rate.
Sulfonated to give 2,7-naphthalene disulfonic acid. Then hydroxylated. Appropriate hydroxylating reagents, such as alkali metal hydroxides, can be selected to react with 2,7-naphthalene disulfonic acid at appropriate temperature and pressure, so that the 4-position is introduced into the hydroxyl group to form 4-hydroxy-2,7-naphthalene disulfonic acid. In this step, the amount of reagents and the temperature of the reaction also need to be precisely controlled to prevent overreaction or underreaction.
Finally neutralize to form a salt. The sodium hydroxide solution is reacted with 4-hydroxy-2,7-naphthalene disulfonic acid, the acid-base is neutralized, and the sodium ion is combined with the sulfonic acid group to obtain the disodium salt of 4-hydroxy-2,7-naphthalene disulfonic acid. After the reaction is completed, the refined disodium salt of 4-hydroxy-2,7-naphthalene disulfonic acid is obtained after separation and purification, such as crystallization, filtration, drying, etc. The salt has a wide range of uses in the chemical industry. According to this method, good products can be obtained to meet all needs.

What is the price range of 4-Hydroxy-2, 7-Naphthalenedisulfonic Acid, Disodium Salt in the market?

The price of disodium 4-hydroxy-2,7-naphthalene disulfonic acid in the market is difficult to determine due to various reasons. Looking at the example of "Tiangong Kaiwu" in the past, the price of various things in the world often varies according to the origin, season, and supply and demand trends.
The price of this product may be stable in a certain area if its origin is widely distributed, the materials are easy to obtain, the labor cost is moderate, and the demand in the market does not show a sharp increase or decrease. However, if the origin is rare, the collection is difficult, and the craftsmanship is complicated, exquisite craftsmanship and rare tools are required, the price will rise.
Also, the change of seasons also has an impact. If the situation is unfavorable, the raw materials are not harvested, or the seasons change, and the demand for this product in a certain industry changes sharply, the price will change. And the supply and demand of the market is the key. If there are many applicants and few suppliers, the merchant will raise the price; on the contrary, if the stock is small and the demand is small, the price will decline.
In the market today, the price of 4-hydroxy-2,7-naphthalene disodium disulfonate is roughly between tens of yuan and hundreds of yuan per kilogram. However, this is only a rough estimate. The actual price should be carefully observed based on the current market conditions and quality. The market conditions change, and the price is also unstable. The industry should always review the situation to clarify its exact price.