4-Hydroxynaphthalene-2,7-Disulfonic Acid

Lingxian Chemical

Specifications

HS Code	281542
Chemical Formula	C10H8O8S2
Molecular Weight	316.30
Appearance	White to off - white powder
Solubility In Water	Soluble
Ph Of Aqueous Solution	Acidic
Melting Point	Decomposes
Odor	Odorless
Stability	Stable under normal conditions
Hazardous Decomposition Products	Sulfur oxides

Packing & Storage

Packing	500g of 4 - Hydroxynaphthalene - 2,7 - Disulfonic Acid in a sealed chemical - grade bag.
Storage	4 - Hydroxynaphthalene - 2,7 - Disulfonic Acid should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, flames, and incompatible substances. Store in a tightly sealed container to prevent moisture absorption and potential reactions. Avoid storage near strong oxidizing agents to ensure its stability.
Shipping	4 - Hydroxynaphthalene - 2,7 - Disulfonic Acid is shipped in containers suitable for chemical products. Precautions are taken to prevent spillage and ensure stability during transit, adhering to strict hazardous material shipping regulations.

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4-Hydroxynaphthalene-2,7-Disulfonic Acid

General Information

Historical Development

The historical development of 4-hydroxynaphthalene-2,7-disulfonic acid is worth exploring. In the past, chemists have gradually paid attention to this substance in the journey of exploring new compounds. At first, the knowledge of its characteristics and potential uses was still shallow. However, with the passage of time, various experiments and studies have come one after another. Scholars have worked tirelessly to gain insight into its structure and properties. At first, only a few or two characteristics were known, but after repeated trials and errors and analysis, the understanding of it became more and more perfect. In terms of synthesis methods, it has also gradually become more refined from the rough at the beginning. Everyone hopes to obtain this substance more efficiently and purely, so they continue to improve the process. From this perspective, 4-hydroxynaphthalene-2,7-disulfonic acid has undergone many changes since its inception to today, and its position in the field of chemistry has gradually stabilized.

Product Overview

4-Hydroxynaphthalene-2,7-disulfonic acid is a unique compound. Its shape is unique, with the structure of sulfonic acid group and hydroxyl group. The sulfonic acid group gives it good water solubility, and the hydroxyl group also brings it specific chemical activity.
This compound has potential applications in many fields. In the dye industry, it may provide a key raw material for the synthesis of bright-colored and stable dyes. With its structural characteristics, it can help the dye better adhere to the fabric and show excellent dyeing effect. In some chemical synthesis reactions, it can be used as an important intermediate to participate in the construction of complex organic molecular structures through its activity check point, contributing to the development of organic synthesis chemistry.
Its preparation process may require delicate chemical techniques and precise control of reaction conditions to obtain high-purity products to meet the demanding application requirements in various fields.

Physical & Chemical Properties

4-Hydroxynaphthalene-2,7-disulfonic acid is a unique chemical substance. Its physical and chemical properties are worth studying. Looking at its color, or in a white-like state, the texture is fine. In terms of solubility, it has a certain degree of solubility in water and can be coordinated with water molecules. Investigating its chemical activity, the sulfonic acid group is hydrophilic, so that it can interact with many substances in a specific reaction system. The presence of hydroxyl groups also gives it unique chemical properties, or can participate in various reactions such as esterification and oxidation. Its melting point, boiling point and other physical parameters also have specific values, which are the key to understanding this substance in depth, and are related to its application in chemical industry, scientific research and other fields.

Technical Specifications & Labeling

There is a product today, named 4 - Hydroxynaphthalene - 2,7 - Disulfonic Acid. To clarify its technical regulations and labels (commodity parameters), you should check it carefully.
In the technical regulations, starting from the selection of raw materials, you must choose excellent products, and impurities must be removed. The temperature, time, and dosage of the reaction agent need to be precisely controlled. If the temperature is high, the quality will change, and if the temperature is low, it should be slow down. The time is not complete, and the time may be worn out. More agents and less agents also affect the quality.
As for the logo (commodity parameters), looking at its color, it should be pure and free of impurities; measure its degree, the value needs to meet the standard; check its quality, and the proportion of ingredients must be correct. In this way, you can get the best things, and when you use them, you can do your best to meet your needs.

Preparation Method

The product of 4 - Hydroxynaphthalene - 2,7 - Disulfonic Acid is made today. The raw materials and production process, reaction steps and catalytic mechanism are very important. The raw materials need to be carefully selected naphthalene, etc., and the quality is better. The production process is based on naphthalene first, and it is sulfonated. Under specific temperature, pressure and catalyst, naphthalene and sulfuric acid are cleverly combined to obtain a sulfonated product. After hydrolysis, acidification and other steps, the product is formed. The reaction steps are orderly. When sulfonating, the temperature should be controlled in a certain range to ensure that the reaction is smooth. Catalytic mechanism, the catalyst promotes the reaction speed, reduces the activation energy, and obtains the product with high efficiency. In this way, the 4 - Hydroxynaphthalene - 2,7 - Disulfonic Acid with excellent quality can be

Chemical Reactions & Modifications

4 - Hydroxynaphthalene - 2,7 - Disulfonic Acid is also a chemical compound. Its anti-chemical modification is the focus of our research.
In the anti-chemical compound, this compound often involves the anti-chemical of sulfonic acid groups, and its sulfonic group is also active. It can be mixed with other substances, such as anti-chemical, sulfonic groups can be formed, and sulfonic acid groups can also be reduced, affecting their properties.
As for modification, or other groups can be introduced to reduce their physical and chemical properties. For example, the introduction of a lipid group can change its solubility and make it soluble in a specific solution. Or it can be used to reduce the anti-chemical, to obtain novelty, for use in the field, such as dyes, compounds, etc. We often study its anti-theory, hoping to control it well, so as to achieve better efficiency and better quality, and contribute to scientific research through chemical engineering.

Synonyms & Product Names

4-Hydroxynaphthalene-2,7-disulfonic acid, which has many other names and trade names. It was called "naphthalene sulfonic acid" in ancient times, because its chemical structure contains naphthalene ring, hydroxyl group and sulfonic acid group, and its properties are unique. In chemical classics, it also has the name "Hydroxynaphthalene Disulfonic Acid", which is derived from its key structural characteristics.
The names of commodities in the market also have their own characteristics. In the past, there were trade names for their uses and characteristics, and the name was "4-Hydroxynaphthalene Disulfonic Acid," because it was used in the printing and dyeing industry to help dyes level dyeing and improve color fastness There are also people who pride themselves on the origin and quality, saying that "a certain place is famous for 4-hydroxynaphthalene-2,7-disulfonic acid", hoping to borrow the reputation of the place name to recognize the excellent products. Many names are born from industry habits, application scenarios, and business marketing strategies. Although the names are different, they actually refer to this chemical substance.

Safety & Operational Standards

4-Hydroxynaphthalene-2,7-disulfonic acid is also a chemical product. Its safety and operating specifications should be studied in detail.
When making this substance, all reagents must be selected and used carefully. If the acids and alkalis involved are strong and corrosive, they will hurt the skin if touched, and it is especially dangerous to enter the eyes. Therefore, the operator must be strictly protected, wear protective clothing, wear protective glasses and gloves, and avoid contact with the body.
In the reaction environment, temperature, pressure, and duration are all related to the quality and yield of the product, and safety is also involved. Temperature control should not be exceeded to prevent the risk of backlash and explosion; pressure should be stable and keep the limit of equipment load. If the reaction generates a lot of heat, a cooling system must be set up to make the temperature appropriate.
The storage of the product should also be followed. It should be placed in a cool and dry place to avoid heat and moisture, away from fire sources and oxidants, and prevent deterioration and explosion. The reservoir must be strictly sealed, and the name, nature and danger of the product must be clearly marked, so that it can be easily managed.
The process of operation, personnel must be familiar with the method. Know the reaction mechanism and the materiality of the product first, and then proceed with the operation. During the operation, do it in sequence, don't be impatient. After each step, check the equipment carefully to see if there is any leakage or damage.
The disposal of waste should not be ignored. Residual liquid, residue, according to environmental regulations, do not discard at will, free from pollution and environmental harm.
In short, the production of 4-hydroxynaphthalene-2,7-disulfonic acid, from the beginning to the end, should comply with safety and operating standards, to ensure personnel safety, protection of the ring, and smooth production.

Application Area

4-Hydroxynaphthalene-2,7-disulfonic acid is used in many fields. In the dyeing and weaving industry, it can be used as a key raw material for dye synthesis. Due to its special chemical structure, it can make the dye color brighter, and has good light resistance and washable properties, making the fabric fade for a long time after dyeing.
In the papermaking industry, it is also indispensable. It can optimize the performance of paper, enhance the strength and toughness of paper, and make paper more durable. At the same time, in the production of some specific paper products, the whiteness and gloss of paper can be adjusted to improve the quality of paper products.
In the field of scientific research, as an important chemical reagent, it provides assistance for the study of many chemical reactions, helps scientists to deeply explore the mechanism of related chemical processes, and promotes the development of chemistry.

Research & Development

In recent times, the art of chemistry has become more and more refined, and new things have emerged one after another. I focus on the research of 4-Hydroxynaphthalene-2,7-Disulfonic Acid. At the beginning, analyzing its structure and distinguishing its characteristics, although it was difficult to encounter, I did not dare to be lazy.
Then study the preparation method, try and change it again and again, and strive to improve. Or adjust the temperature of the reaction, or change the amount of its reagents, and repeatedly ponder, hoping for a good method. At the end of the application, there is also a lot of thinking. Think about where it can be used and what is the benefit.
After long-term research, it has gradually become successful. The better the preparation method, the better the quality of the product. And found that it is useful in dyeing, medicine and other fields. In the future, we should continue to unremitting, expand its application, promote its development, and hope to contribute to the progress of chemistry.

Toxicity Research

Today there is a product name "4-Hydroxynaphthalene-2, 7-Disulfonic Acid". I am a chemical researcher, and it is important to investigate its toxicity. In the experimental investigation of this substance, it is necessary to examine its impact on various organisms in detail. Examine its contact with the tested organisms to see if it causes body diseases and dysfunctions.
The investigation of toxicity is related to the safety of life and the survival of the environment. If this substance is highly toxic, it will enter the natural environment, or sewage and soil, harm life, and break the ecological balance. Therefore, we should uphold a cautious heart and analyze its toxicity in detail with a scientific method. Or measure its half lethal dose, or observe its effect on cells, and strive to clarify its toxic nature, in order to provide evidence for the use of this product, the protection of the environment and human life.

Future Prospects

Today there is a thing called 4-Hydroxynaphthalene - 2,7 - Disulfonic Acid. This substance is quite promising for future development in our chemical research.
Looking at its characteristics, the structure is exquisite, and it seems to contain endless mysteries for us to unearth. In the field of chemical industry, it may become the key to innovation and lead to the progress of technology. In material research, it may be the basis for creating new materials, new qualities of plastic materials, so that it has extraordinary properties to meet the needs of future diversity.
Although it has not been fully realized at present, we will be able to explore its subtleties with the heart of research and diligence. With time, it may be able to develop its potential and be used by the world, contributing to the prosperity of industry and the advancement of science and technology, and achieving a brilliant future.

Frequently Asked Questions

4-Hydroxynaphthalene-2, what are the chemical properties of 7-Disulfonic Acid

4-Hydroxynaphthalene-2,7-disulfonic acid, this is an organic compound. It is acidic. Because it contains a sulfonic acid group, it can dissociate hydrogen ions in water, so it has acidic characteristics.
In terms of solubility, the presence of sulfonic acid groups makes it soluble in water. Sulfonic acid groups are hydrophilic groups that can form hydrogen bonds with water molecules, thereby enhancing the dispersion of the substance in the aqueous phase.
In terms of chemical activity, the presence of hydroxyl groups makes the molecule have certain reactivity. Hydroxyl groups can participate in reactions such as esterification and etherification. It can react with acylating reagents to form corresponding ester compounds; it can react with electrophilic reagents such as halogenated hydrocarbons to form ether bonds.
The sulfonic acid group is also diverse and reactive. The sulfonic acid group can undergo the reverse reaction of the sulfonation reaction. Under specific conditions, the sulfonic acid group can be replaced by other groups. And the sulfonic acid group of the substance can form salts with metal ions. Such metal salts are used in some fields or have specific uses.
Its stability is acceptable under general conditions, but when encountering special reagents such as strong oxidants, the molecular structure may change. Under appropriate storage conditions, it can maintain a relatively stable chemical state. However, if it is affected by factors such as heat and light, it may cause chemical reactions and cause changes in its structure and properties.

4-Hydroxynaphthalene-2, What are the main uses of 7-Disulfonic Acid?

4-Hydroxynaphthalene-2,7-disulfonic acid, this substance has a wide range of uses. In the dye industry, it can be called a crucial raw material. With its unique chemical structure, it can undergo a series of delicate chemical reactions to derive many dyes with brilliant colors and excellent performance. The preparation of some direct dyes and acid dyes is inseparable from it. It imparts good dyeing properties to dyes, making dyes firmly adhere to fabrics, with lasting and bright colors.
It also has its uses in the field of medicine. It can be used as a key intermediate for the synthesis of specific drugs. Because of its certain biological activity and chemical properties, it can participate in the construction of drug molecules, laying the foundation for the development of drugs with specific curative effects. Through ingenious modification and modification of its structure, it is expected to obtain new drugs for the treatment of specific diseases.
In other aspects of chemical production, it is also indispensable. In the synthesis of some functional materials, it can serve as a special additive or reaction substrate. For example, in the preparation of some materials with special adsorption or catalytic properties, 4-hydroxynaphthalene-2,7-disulfonic acid can play a unique role in regulating the properties of materials to meet the needs of different industrial scenarios.
In addition, in the field of scientific research, due to its special chemical properties, it is often used as a model compound to study certain chemical reaction mechanisms. Researchers can gain insight into more complex chemical processes through in-depth investigation of the chemical reactions they participate in, providing an important basis for the development and improvement of chemical theory. In short, 4-hydroxynaphthalene-2,7-disulfonic acid has shown important value in many fields, and its role in promoting industrial production and scientific research cannot be underestimated.

4-Hydroxynaphthalene-2, what is the production method of 7-Disulfonic Acid

The preparation method of 4-hydroxynaphthalene-2,7-disulfonic acid is based on the ancient method of Dorine naphthalene as the starting material. Take the naphthalene first and sulfonate it with sulfuric acid. When sulfonating, control its temperature, concentration and dosage of sulfuric acid, which are related to the yield and purity of the product, and are very important.
In the sulfonation reaction, naphthalene encounters sulfuric acid, and its molecular structure gradually changes. The sulfonic acid group of sulfuric acid (-SOH) gradually enters the naphthalene ring, and the mixture of naphthalene sulfonic acid is initially obtained. To obtain 4-hydroxynaphthalene-2,7-disulfonic acid, the temperature must be carefully controlled. At the beginning of the reaction, it should be slightly lower temperature, so that the sulfonic acid group selectively enters the specific position of the naphthalene ring, and then gradually heats up to promote the reaction of disulfonation, so that the sulfonic acid group re-enters the naphthalene ring in a suitable place, and finally forms 4-hydroxynaphthalene-2,7-disulfonic acid.
After the reaction is completed, the product needs to be separated and purified. The common method is crystallization. Because the solubility of the product in different solvents and temperatures is different, it can be purified by cooling crystallization or recrystallization to remove impurities and improve purity. There are also methods of purification by ion exchange resin. By the difference in the affinity of the resin to different ions, the product and impurities can be divided to obtain pure 4-hydroxynaph
Today's production methods, or supplemented by catalysts, increase the reaction rate and reduce the severity of the reaction conditions. And the techniques of reaction monitoring and product analysis have also been refined. With modern instruments, such as high-performance liquid chromatography, mass spectrometry, etc., the purity and content of the product can be accurately measured, making the production more controllable, the yield is higher, and the quality is better.

4-Hydroxynaphthalene-2, 7-Disulfonic Acid What are the precautions in storage and transportation

4-Hydroxynaphthalene-2,7-disulfonic acid is a commonly used raw material in chemical industry. When storing and transporting, many matters need to be paid attention to.
First storage environment. This acid should be stored in a cool, dry and well-ventilated place. Because of the humid environment, it is easy to cause deliquescence and deterioration; high temperature, or cause chemical reactions, which will damage its quality. Like an ancient treasure, you must find a dry and cool place to keep it for a long time.
Second words packaging is sealed. It must be packed in a well-sealed container to prevent contact with air. If it comes into contact with air, it is easy to be oxidized and affect its chemical properties. Just like the ancients sealed the fine wine, tightly sealed to keep its flavor.
Furthermore, when transporting, it is necessary to ensure that the packaging is not damaged. Because it is corrosive to a certain extent, if the packaging is damaged, the outflow liquid will corrode the transportation tool and may endanger the safety of the transportation personnel. In this case, if transporting fragile and dangerous antiquities, it must be properly wrapped to ensure that it is foolproof.
In addition, it should not be mixed with alkaline substances. When acid and alkali meet, it is easy to react violently or cause danger. This is just like the ancients knew that water and fire are incompatible, and acid and alkali must be kept away to ensure safety.
In short, the storage and transportation of 4-hydroxynaphthalene-2,7-disulfonic acid requires careful treatment of the above matters to ensure its safety and quality.

4-Hydroxynaphthalene-2, what is the market outlook for 7-Disulfonic Acid?

4-Hydroxynaphthalene-2,7-disulfonic acid, this substance is in the field of chemical industry, and its market prospect is related to many parties.
Looking at its past, it was often the key raw material for the production of dyes and pigments. Due to its own structural characteristics, a variety of bright and fastness dyes can be derived. In the past, the textile printing and dyeing industry flourished, and the demand for dyes was huge. As the cornerstone of dye synthesis, this acid also expanded the market.
As for the present, science and technology have evolved, and the concept of environmental protection has gradually entered the hearts of the people. Although the textile printing and dyeing industry still exists, environmental protection regulations have become stricter. The traditional dyes made from 4-hydroxynaphthalene-2,7-disulfonic acid are limited due to the presence of undesirable ingredients. However, scientific researchers have not abandoned this acid and have worked hard on the green synthesis path. After unremitting efforts, new synthesis methods have been found, which can make dyes based on this acid more environmentally friendly and improve their performance.
Looking to the future, with the rise of emerging industries such as electronics and medicine, this acid may present new opportunities. In the field of electronics, its special chemical properties may be used in the synthesis of electronic materials, such as photosensitive materials. In medicine, its molecular structure may provide new ideas for drug research and development, or become new drug intermediates. Although facing competition from emerging alternatives, with its own unique properties, 4-hydroxynaphthalene-2,7-disulfonic acid is expected to shine in new fields and open up a broader market with in-depth research and development over time.