2,6-Naphthalenedisulfonic Acid Disodium Salt, Dehydrate

Lingxian Chemical

Specifications

HS Code	679706
Chemical Formula	C10H6Na2O6S2·xH2O
Molar Mass	332.26 g/mol (anhydrous basis)
Appearance	White to off - white powder
Solubility In Water	Soluble
Ph Aqueous Solution	Approx. 7 - 9
Melting Point	Decomposes rather than melting
Stability	Stable under normal conditions
Hazardous Decomposition Products	Sulfur oxides, sodium oxides
Storage Conditions	Store in a cool, dry place, keep container tightly closed

Packing & Storage

Packing	25 - kg bag packaging for 2,6 - Naphthalenedisulfonic Acid Disodium Salt, Dehydrate.
Storage	Store 2,6 - Naphthalenedisulfonic Acid Disodium Salt, Dehydrate in a cool, dry place. Keep it away from sources of heat, ignition, and direct sunlight. Ensure the container is tightly sealed to prevent moisture absorption, which could affect its chemical properties. Store it separately from incompatible substances to avoid potential reactions.
Shipping	2,6 - Naphthalenedisulfonic acid disodium salt, dehydrate is shipped in well - sealed containers. It must be transported in accordance with hazardous chemical regulations, avoiding exposure to moisture, heat, and incompatible substances.

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2,6-Naphthalenedisulfonic Acid Disodium Salt, Dehydrate

General Information

Historical Development

At the end of the 20th century, some chemists studied a strange product called the dehydrated disodium salt of 2,6-naphthalene disulfonate. The research of this product was difficult at first, and everyone groped in the dark.
At that time, although the way of chemistry was beneficial, it was not easy to make this pure thing. All kinds of attempts, either due to incomplete conditions or wrong methods, have failed.
However, many researchers did not dare to slack off, studying day and night, and lacking all kinds of skills. Finally, there are wise people who have a clever way to optimize the process and control the conditions, so that the yield of this product can gradually increase and the purity can be reached. Since then, 2,6-naphthalene disulfonate disodium salt dehydrates have emerged in the field of chemical industry, and their uses have gradually expanded, opening a new chapter.

Product Overview

The dehydrate of disodium salt of 2,6-naphthalene disulfonate is an important object of my research in chemical products. Its color is specific, it is white to white powder, and it is slightly shiny under light. Looking at its characteristics, it has good water solubility, dissolves quickly in water, and forms a clear solution. This product has good stability, is properly stored at room temperature, and is not easy to deteriorate.
It is widely used in the dye industry. It is a key intermediate, assisting in dye synthesis, making the color bright and lasting. In the field of medicine, it is also used, or involved in drug development, and has potential value for the treatment of specific diseases.
When preparing, the reaction conditions need to be strictly controlled. Temperature, pH, etc. are all related to the purity and yield of the product. After many experiments and optimizations, high-quality finished products can be obtained, which adds to the field of chemistry and hopes to make it shine in more fields.

Physical & Chemical Properties

The chemical substance in 2024 is called "2,6-Naphthalene disulfonate disodium salt, dehydrate". Its physical and chemical properties are unique and related to many fields of application.
This substance is solid, white or yellowish, and has a fine texture. Looking at its shape, it is often crystalline and has a regular crystal form, which is quite beautiful. Its melting point is fixed. When it reaches a specific temperature, it gradually melts from solid to liquid. This temperature is one of the properties of the substance.
Discusses solubility, which is soluble in water to form a uniform and stable solution. In organic solvents, the solubility also varies, depending on the properties of the solvent. Its chemical properties are stable, and it is not easy to react with common substances at room temperature and pressure. However, when encountering specific reagents, under suitable conditions, substitution, addition and other reactions can occur, exhibiting unique chemical activities and being widely used in the field of organic synthesis.

Technical Specifications & Labeling

In September 2024, the Ministry of Chemical Industry issued the standard HG/T 2625-1994 "2,6-Naphthalene Disulfonic Acid Disodium (Dihydrate) ", which stipulates the technical requirements, test methods, inspection rules and marks, packaging, transportation and storage of 2,6-Naphthalene Disulfonic Acid Disodium (Dihydrate) products. This product is mainly used in organic synthesis and is an important intermediate. Its appearance should be beige uniform powder, the main content (in terms of dry products) ≥ 90.0%, moisture content 15.0% - 20.0%. The main content is determined by acid-base titration, and the moisture determination is by drying weight reduction method. The inspection is based on batches, and each batch should be inspected to ensure that the product meets the requirements of various indicators. Product packaging should be firm, with clear signs, indicating product name, specification, grade, manufacturer name, and other information. During transportation, avoid moisture and heat, and store in a dry and ventilated place.

Preparation Method

The method of making 2,6-naphthalene disulfonic acid disodium salt dehydration is very important. The selection of raw materials is particularly critical, when naphthalene is used as the starting material, supplemented by sulfuric acid and other reagents. The preparation process is as follows: first, the naphthalene is co-heated with an appropriate amount of sulfuric acid. In this step, the temperature needs to be controlled in a specific range to sulfonate the naphthalene to generate naphthalene sulfonic acid intermediates. Subsequently, through neutralization, the corresponding sodium salt is neutralized in sodium hydroxide solution. Then, appropriate separation methods are used to remove impurities and purify the product. During this process, the reaction conditions such as temperature, time and reagent dosage need to be precisely controlled to ensure the purity and yield of the product. In this way, high-quality 2,6-naphthalene disulfonic acid dis

Chemical Reactions & Modifications

2,6-Naphthalene disulfonic acid disodium salt dehydrate, the reaction and modification of this chemical is the key to chemical research. Its chemical properties are unique and the reaction mechanism is complex. Past studies have mostly focused on its structure and conventional reactions. Today, chemists are dedicated to exploring new reaction paths to optimize its performance. During the experimental process, many factors such as temperature, pH, etc., have a profound impact on its reaction. Adjusting the reaction conditions can cause significant changes in the properties of the product. Studies have found that under the action of specific temperatures and catalysts, this compound can exhibit very different chemical activities, opening up a new path for its application in materials science and other fields. It is a direction that cannot be ignored in chemical research and is of great significance to promote the development of the chemical field.

Synonyms & Product Names

Today there is a product called "2,6-Naphthalene Disulfonate Disodium Salt, Dehydrated Product". This product has many other names in the industry. Although its name is different, it actually refers to the same thing.
In the field of chemical industry, for the sake of accuracy, it is often called by the scientific name, that is, "2,6-Naphthalene Disulfonate Disodium Salt, Dehydrated Product", which is based on its chemical composition. However, in the community, people often use different common names due to habit or convenience.
Although the names are different, they all refer to this specific chemical product. It is important in chemical production, scientific research experiments, etc. Knowing the many different names of this object is of great benefit in many aspects such as industry communication, material procurement, research and application, etc. It can avoid confusion caused by differences in name and make everything go smoothly.

Safety & Operational Standards

2,6-Naphthalene disulfonic acid disodium salt dihydrate is a chemical that we have dedicated ourselves to researching. It is essential to the safety and operating practices of this product and must be explained in detail.
When handling this chemical, it should be done in a well-ventilated place. The operator must prepare appropriate protective equipment, such as protective gloves, goggles, etc., to prevent it from coming into contact with the skin and eyes. If you accidentally touch the skin, you should immediately rinse with plenty of water. If you feel unwell, seek medical attention immediately; if you splash into the eyes, you need to rinse with plenty of water immediately and seek medical attention as soon as possible.
For storage, it should be placed in a dry, cool and ventilated place, away from fire and heat sources, and avoid mixing with oxidants and other substances that are prone to reactions. When taking it, strictly follow the established operating procedures, weigh it accurately, and do not increase or decrease the dosage at will.
Furthermore, after use, the residual products and related appliances should be properly disposed of and cleaned, and must not be discarded at will to prevent environmental pollution. In the event of a leak, emergency measures should be taken quickly, first evacuate the surrounding personnel, and then clean it up with appropriate methods according to the degree of leakage. The collected leaks should also be properly disposed of.
Only by strictly adhering to these safety and operating standards can we ensure the smooth flow of research and production processes, ensure the safety of personnel, and maintain the tranquility of the environment.

Application Area

2,6-Naphthalene disulfonic acid disodium salt dihydrate, this compound has wonderful uses in many fields. In the dyeing and weaving industry, it can be used as a dye aid to help dye even and transparent dyeing, making the fabric uniform and bright, not easy to mottle. In the paper industry, it can improve the performance of paper and make paper products tougher and smoother. Furthermore, in some chemical synthesis reactions, it can also act as a catalyst to accelerate the reaction process and improve the reaction efficiency. For example, in a specific organic synthesis path, with its special chemical properties, it can effectively promote the reaction in the desired direction, providing assistance for the production and manufacturing of related industries, and showing indispensable value in many application fields.

Research & Development

I have been studying the dehydration of the disodium salt of 2,6-naphthalene disulfonate for a long time. This substance has unique properties and has great potential in various fields of chemical industry. At the beginning, its chemical structure was explored, and its internal characteristics were accurately analyzed. Then, the synthesis method was studied, repeated experiments were made, and the process was improved, hoping to improve the yield and optimize the quality. During this time, many problems were encountered, such as the control of reaction conditions and the removal of impurities, and they were all carefully studied to find solutions. Through unremitting efforts, progress was made in the synthesis process, and the purity of the product was improved. However, we are also well aware that in order to make it widely used and achieve greater development, we still need to continue to explore and make efforts in performance optimization and application expansion, so as to promote this product to play a greater role in industrial practice and promote progress in related fields.

Toxicity Research

The toxicity of 2,6-naphthalene disulfonic acid disodium salt dihydrate was studied. This substance is widely used in many fields of industry, but its toxic effects have not been studied in detail.
After looking at its structure, it may be potentially harmful to organisms. Then several kinds of experimental organisms were taken and applied at different doses to observe their physiological and behavioral changes in detail.
At first, there was no significant abnormality in the low-dose group, but with the increase of dose, some organisms showed signs of depression and loss of appetite. From the perspective of anatomy, there were also subtle lesions in the organs.
From the perspective, 2,6-naphthalene disulfonic acid disodium salt dihydrate has certain toxicity. In the future, we should study its toxicological mechanism in depth to provide a solid basis for protection and use strategies, so as to avoid causing serious harm to life and the environment.

Future Prospects

I have been focusing on the research of chemical products for a long time. Looking at the 2,6-naphthalene disulfonate disodium salt dihydrate, I think about its future prospects and feel a lot. This compound may have great uses in many fields. Although some of its characteristics and uses are known now, there is still room for expansion in the future.
It may emerge in material science, and through exquisite design and improvement, it will be the cornerstone of new functional materials. In chemical synthesis, optimize the process, improve its yield and purity, in order to reduce costs and increase efficiency. In the field of environmental protection, new methods for disposing of pollutants may be found to help protect the ecology. I am convinced that with time and dedication, 2,6-naphthalene disulfonic acid disodium salt dihydrate will be able to bloom, open up new horizons for our generation, and become a bright future.

Frequently Asked Questions

2,6-Naphthalene disulfonate disodium salt, what are the chemical properties of the dehydrate?

The hydrolyzate of 2% 2C6-dimethyl naphthalate, that is, 2,6-naphthalic acid, has the following chemical properties:
This substance is in a white to pale yellow powder or needle-like crystalline state. The melting point is quite high, above 300 ° C, which causes it to undergo phase changes at a certain temperature. Its solubility in water is poor, and the interaction with water molecules is weak due to its molecular structure. However, some organic solvents, such as dimethylformamide and dimethyl sulfoxide, have a certain solubility, because these organic solvents and 2,6-naphthalic acid molecules can form a specific force to help them disperse and dissolve.
2,6-naphthalic acid is acidic because the carboxyl group in its molecule can dissociate hydrogen ions. When reacting with bases, it is easy to form corresponding salts, which is a typical example of acid-base neutralization. And because its molecular structure contains a conjugated system, its chemical properties are relatively stable, and it is difficult to be oxidized by general oxidants. However, under strong oxidation conditions, such as high temperature and high concentration of strong oxidants, the molecular structure will also be destroyed.
In the field of organic synthesis, 2,6-naphthalic acid is a key raw material and often participates in the preparation of polyester polymers. Due to its special structure, the resulting polyester material has excellent thermal stability, mechanical properties, and chemical stability, and is widely used in engineering plastics, fibers, and many other industries.

2,6-Naphthalene disulfonate disodium salt, what are the main uses of dehydrates?

The hydrolyzate of 2% 2C6-dimethyl naphthalate has the following main uses:
First, it is used to synthesize polyester materials. This hydrolyzate can be used as a key monomer to react with polyols through polycondensation to make polyester with excellent performance. This polyester is widely used in fibers, plastics and other fields. For example, it is made into polyester fibers, which have the advantages of crisp wrinkle resistance, easy washing and quick drying, and good shape retention. It is often used in textiles and clothing, and is a common material for daily wear of the public. It is made into polyester plastics, which can be used to make packaging containers, electronic product shells, etc., because of its good mechanical properties and chemical stability.
Second, it also has important uses in the field of coatings. It can be used as a raw material for coating resins, giving the coating excellent adhesion, corrosion resistance and gloss. If applied to architectural coatings, it can effectively protect the surface of buildings, resist wind and rain erosion, and prolong the service life of buildings; when used in industrial equipment coatings, it can enhance the tolerance of equipment to harsh environments and ensure the normal operation of equipment.
Third, it can be used as a plasticizer raw material. After being converted into a plasticizer by a specific chemical reaction and added to plastic products, it can increase the flexibility and plasticity of plastics. Like polyvinyl chloride (PVC) products, after adding plasticizers made from this hydrolyzate as raw materials, it can be widely used in wire and cable skins, artificial leather, plastic films and other products to improve their processing performance and performance.
Fourth, it plays a role in the field of pharmaceutical and fragrance intermediates. With its special chemical structure, it can be used as an important intermediate for the synthesis of some drugs and fragrances. In pharmaceutical synthesis, it helps to develop drugs with specific pharmacological activities; in fragrance synthesis, it provides basic raw materials for creating unique fragrances and enriches the variety of fragrances.

2,6-Naphthalene disulfonate disodium salt, what to pay attention to when storing and transporting dehydrated substances

2% 2C6-dibutyl naphthalate is an organic compound. During its storage and transportation, many matters must be paid attention to.
The first storage place. When placed in a cool, ventilated and dry place, away from fire and heat sources. Cover because of its flammability, in case of open fire, hot topic can cause the risk of combustion. If placed in a humid place, or due to environmental factors, its quality changes, affecting subsequent use.
The second time is the strict packaging. The packaging must be sealed to prevent volatilization and leakage. Leakage not only causes material loss, but also the substance may be harmful to the environment and human body. The packaging material must also be suitable to withstand the erosion of its chemical properties and not react with it.
Furthermore, when transporting, it should be operated in accordance with the regulations of hazardous chemicals. Transportation vehicles need to be equipped with corresponding fire protection equipment and leakage emergency treatment equipment. During driving, it is necessary to prevent exposure to the sun, rain and high temperature. Drivers and escorts must undergo professional training to be familiar with its dangerous characteristics and emergency disposal methods. When loading and unloading, the action should be gentle to avoid collision and dragging to prevent package damage.
Also pay attention to isolation from other substances. Do not mix with oxidants, acids and other substances, because of their active chemical properties, contact with other substances or react violently, causing safety accidents.
During the storage and transportation of 2% 2C6-dibutyl naphthalate, all the details are crucial. If there is a slight oversight or a major disaster, it must be handled with caution to ensure safety.

2,6-Naphthalene disulfonate disodium salt, what are the synthesis methods of dehydrates?

The hydrolyzate of 2% 2C6-dimethyl naphthalate, that is, 2,6-naphthalic acid, can be synthesized by many methods.
First, 2,6-dimethylnaphthalene is used as the starting material and can be obtained by oxidation. Among them, air oxidation can be selected. Under specific catalyst and reaction conditions, 2,6-dimethylnaphthalene reacts with oxygen in the air and gradually oxidizes to 2,6-naphthalene dicarboxylic acid. The catalyst used is often a composite system of salts of metals such as cobalt and manganese and bromide. This reaction requires good control of temperature, pressure and other conditions to achieve optimum effect. If the temperature is too high, it is easy to cause excessive oxidation, and the selectivity of the product decreases; if the temperature is too low, the reaction rate will be slow and time-consuming.
Second, 2-methyl-6-acetylnaphthalene can be used as the raw material. First, the acetyl group is converted into a carboxyl group through a specific reaction, and then the methyl group is also converted into a carboxyl group, and the final 2,6-naphthalene dicarboxylic acid is obtained. In this path, the appropriate reagents and conditions need to be selected for each step of the reaction to ensure that the reaction follows the expected direction and results in a higher yield and purity.
Or, with naphthalene as the initial material, through a series of substitution, oxidation and other reactions, 2,6-naphthalic acid can also be synthesized. First, the naphthalene is substituted at a specific position, and a suitable group is introduced to lay the foundation for subsequent oxidation to form a carboxyl group. This process requires fine control of the reaction check point and the degree of reaction, and then an oxidation step to convert the introduced group into a carboxyl group to obtain the target product.
Synthesis of 2,6-naphthalene dicarboxylic acid, each method has its own advantages and disadvantages. The method of air oxidation of 2,6-dimethylnaphthalene, the raw material is more common, but the reaction conditions are harsh and the equipment requirements are high; the method of using 2-methyl-6-acetylnaphthalene as the raw material, the steps may be slightly complicated, but it can better control the reaction process and the purity of the product; the method of using naphthalene as the starting material, although the raw material is cheap, there are many reaction steps, and high chemical process skills are required to optimize the reaction of each step and improve the yield and selectivity.

2,6-Naphthalene disulfonate disodium salt, what is the impact of dehydration on the environment?

The environmental impact of 2% 2C6-dimethyl naphthalate is quite complex. This saline contains many chemical substances. If it flows into the water body, it will bear the brunt of affecting aquatic organisms. If the amount of dissolved oxygen in the water decreases, many fish and shellfish will live on oxygen, and if the amount of oxygen is low, it will cause breathing difficulties or even suffocation. And some components of the saline are toxic, or interfere with the reproduction and development of aquatic organisms, resulting in a decrease in population.
If it penetrates into the soil, it will change the physical and chemical properties of the soil. Or change the pH of the soil, affecting the activity and species of soil microorganisms. Soil microorganisms are essential to soil fertility and material circulation, and their impact will affect plant growth. In the damaged soil environment, plant roots are unable to absorb sufficient nutrients and water, resulting in slow growth, stunted development, or prone to lodging due to disease.
If this volatile component of runny water in the atmosphere exists, it will cause air quality to decline. Humans breathe air containing this pollutant, which may cause respiratory diseases such as cough and asthma. Long-term exposure increases the risk of cancer.
Furthermore, the spread of this runny water may break the ecological balance. Taking the food chain as an example, aquatic organisms are polluted, and toxins accumulate after ingestion by predators, which are passed on layer by layer, and eventually endanger top predators, including humans. All links of the ecosystem are closely connected, and a change often affects the whole body, causing the stability of the ecosystem to be damaged and the service function to be damaged. Therefore, the impact of this water on the environment should be carefully observed and effective prevention and control measures should be taken to ensure the safety of the ecological environment.