Products

2-Hydroxy Naphthalene-3,6-Disulfonic Acid Sodium Salt (R Salt)

Lingxian Chemical

Specifications

HS Code

982379

Chemical Name 2-Hydroxy Naphthalene-3,6-Disulfonic Acid Sodium Salt (R Salt)
Molecular Formula C10H6Na2O8S2
Molecular Weight 374.26 g/mol
Appearance White to off - white powder
Solubility Soluble in water
Ph Typically around 7 - 9 in aqueous solution
Melting Point Decomposes before melting
Cas Number 135 - 51 - 3
Density Approx. 1.7 g/cm³
Purity Usually available in high purity grades (e.g., 95%+)
Packing & Storage
Packing 500 - gram container of 2 - Hydroxy Naphthalene - 3,6 - Disulfonic Acid Sodium Salt (R Salt).
Storage 2 - Hydroxy Naphthalene - 3,6 - Disulfonic Acid Sodium Salt (R Salt) should be stored in a cool, dry place. Keep it in a tightly - sealed container to prevent moisture absorption. Avoid storing near sources of heat, direct sunlight, and incompatible substances. Ensure proper ventilation in the storage area to prevent the build - up of potentially harmful vapors.
Shipping 2 - Hydroxy Naphthalene - 3,6 - Disulfonic Acid Sodium Salt (R Salt) is shipped in well - sealed containers. Precautions are taken to avoid moisture and ensure stability during transit to safeguard its chemical properties.
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2-Hydroxy Naphthalene-3,6-Disulfonic Acid Sodium Salt (R Salt)
General Information
Historical Development
2-Hydroxy Naphthalene - 3,6 - Disulfonic Acid Sodium Salt, that is, R salt, although its substance is small, it has a lot of origin in the field of chemistry. Looking back to the past, the early chemical sages studied the properties of substances, and explored the traces of this salt in the complex chemical world. At that time, the equipment was not refined, and the knowledge was still shallow, but the research heart of the public did not decrease. After several years of repeated trials in chemical experiments, detailed observation and comparison of data, we finally got this R salt. Its initial appearance was only a special product in the laboratory. After the continuous expansion of research by various sages, its uniqueness gradually became apparent, and its use in chemical industry, scientific research, etc., became increasingly widespread. Since its inception, R salts have continued to evolve with the torrent of chemical development, and their contributions in various fields have also increased day by day, witnessing the road of chemistry, from simple to complex, towards a new journey.
Product Overview
Today there is a product called 2 - Hydroxy Naphthalene - 3,6 - Disulfonic Acid Sodium Salt, also known as R salt. This is an important material in the chemical industry and has a wide range of uses. Its properties are stable, its color is white or nearly white, and it is in the state of powder. In many industrial fields, such as the preparation of dyes and pigments, it is indispensable. The preparation method requires a specific process and ratio, and it can be achieved through multiple reactions. At the time of reaction, there are strict requirements for temperature, pressure and other conditions. If there is a slight difference, its quality will be affected. With its unique chemical structure, the product has good solubility and reactivity, which can lay a solid foundation for subsequent applications. It is a crucial material in chemical research and production.
Physical & Chemical Properties
Taste 2 - Hydroxy Naphthalene - 3,6 - Disulfonic Acid Sodium Salt (R salt), its physical and chemical properties are worth exploring. Looking at its shape, it may be solid at room temperature, colored or white crystalline powder, fine and uniform. In terms of solubility, it should have a certain solubility in water, because it contains sodium sulfonate groups, it is hydrophilic, which can make molecules interact with water molecules and disperse them.
When it comes to chemical properties, its hydroxyl groups and sodium sulfonate groups are reactive. Hydroxyl groups can participate in esterification, oxidation and other reactions, and sodium sulfonate groups can undergo ion exchange reactions with some metal ions. And the conjugated system of the naphthalene ring in this material structure makes it have certain stability and special optical properties. These properties may have important applications in the fields of chemical industry, medicine, etc., which are the key to scientific research and are worthy of detailed study to clarify its rationality and make good use of it.
Technical Specifications & Labeling
Today there is a product called 2 - Hydroxy Naphthalene - 3,6 - Disulfonic Acid Sodium Salt (R salt). It is crucial to explore the process specification and identification (product parameters). The process specification needs to be precisely controlled in all links. When selecting high-quality materials, choose high-quality products, and there must be few impurities. The reaction conditions must also be finely regulated. Parameters such as temperature, pressure, and time all affect the quality of the product.
In terms of identification (product parameters), purity should be a key indicator, and it should reach a very high standard to be of high quality. The appearance cannot be ignored, and the color and shape must be uniform and stable. In addition, various physical and chemical properties parameters, such as solubility, pH, etc., should also be clear and clear, so that this product can be used in various fields and play its due effectiveness.
Preparation Method
To prepare 2-hydroxynaphthalene-3,6-disulfonic acid, sodium salt (R salt), the method is as follows:
Prepare raw materials, starting with naphthalene, sulfuric acid, fuming sulfuric acid, etc. are important.
The process of the production method is to first co-heat the naphthalene with sulfuric acid, and control the temperature to obtain naphthalene sulfonic acid. Then use the fuming sulfuric acid to adjust the temperature and sequence to make 2-hydroxynaphthalene-3,6-disulfonic acid. Then neutralize with sodium hydroxide to obtain 2-hydroxynaphthalene-3,6-disulfonic acid, sodium salt.
The steps of the reaction, temperature and sequence are very heavy. The initial heating of naphthalene and sulfuric acid should be slowly heated until the naphthalene sulfonic acid Fuming sulfuric acid is added for the second time, and the temperature should be adjusted to make the sulfonic acid group suitable and attached. When neutralizing, the amount and speed of alkali should also be controlled.
The mechanism of transformation, sulfuric acid sulfonates naphthalene, and fuming sulfuric acid increases the sulfonic acid group. Neutralizing sodium hydroxide, the acid is converted into sodium salt. After these steps, the product of 2-hydroxynaphthalene-3,6-disulfonic acid, sodium salt can be obtained.
Chemical Reactions & Modifications
Nowadays, there are chemical substances, known as 2-Hydroxy Naphthalene-3,6-Disulfonic Acid Sodium Salt, commonly known as R salt. In the study of chemistry, its reaction and modification are crucial.
Looking at this R salt, its chemical reaction is controlled by many factors. Changes in temperature and pH can make its reaction path and rate different. And the characteristics of its structure also affect the tendency of reaction. To modify it, it is necessary to clarify the structure of its molecules and the strength of chemical bonds.
To modify its properties, new groups can be introduced to change its physical and chemical properties. This requires detailed study of the mechanism of the reaction and the conditions for controlling the reaction. With a suitable catalyst, the desired modified product can be obtained by promoting the reaction.
Although the road of exploration is long, adhering to the spirit of research, we will be able to gain more new knowledge in the chemical reaction and modification of R salts, so as to promote the progress of the chemical field.
Synonyms & Product Names
2-Hydroxy Naphthalene-3,6-Disulfonic Acid Sodium Salt (R Salt) is also a chemical product. The same product name is used for the purpose of the chemical field. The same product or product contains 2-hydroxy naphthalene-3,6-disulfonic acid, which is named after its manufacture. As for the product name, it may vary depending on the market.
In chemical research, it is beneficial to communicate with the manufacturer, and it is also convenient to follow the application of this chemical in engineering and scientific research. For example, in the field of dye synthesis, different companies offer different products under different trade names, and researchers need to know their similarities in order to obtain suitable materials, promote research processes, and promote the development and application of chemicals.
Safety & Operational Standards
2-Hydroxynaphthalene-3,6-disulfonic acid, sodium salt (R salt), safety and operation specifications
Fu 2-hydroxynaphthalene-3,6-disulfonic acid, sodium salt, commonly known as R salt, is very important in chemical research and industrial applications. However, its use and operation must be strictly observed to ensure the safety of the experimenter and the smooth operation of the experiment.
For storage, it should be placed in a dry, cool and well-ventilated place. Avoid heat sources, fire sources and direct sunlight to prevent its properties from changing. The cover R salt is damp or heated, or decomposes or deteriorates, damaging its chemical properties.
When operating, the experimenter should wear appropriate protective equipment. For example, wear laboratory clothes, protective gloves and goggles to prevent R salt from coming into contact with the skin and eyes. In case of inadvertent contact, rinse with plenty of water immediately, and seek medical attention according to the severity of the injury.
When using R salt for experiments, be sure to follow the precise operation procedure. When weighing, use precise instruments to ensure that the dosage is correct. When preparing the solution, pay attention to the dissolution sequence and conditions to prevent abnormal reactions. And the operation should be carried out in a fume hood to avoid inhalation of R salt dust or volatile gaseous substances, which may be irritating and damage the respiratory tract.
Furthermore, the treatment of experimental waste cannot be ignored. Wastes containing R salts should not be discarded at will. They should be collected and properly disposed of in accordance with relevant environmental regulations to avoid polluting the environment.
In short, in the research and application of R salts, safety and operating standards are of paramount importance. Only by strictly adhering to this specification can the purpose of the experiment be achieved, and the safety of personnel and the environment are not infringed.
Application Area
2-Hydroxynaphthalene-3,6-disulfonic acid, sodium salt (R salt), is used in various fields. In the dyeing and weaving industry, it can be used as a dye intermediate. With its special structure, it can be affinity with many fibers, making the fabric bright and lasting. In the field of analytical chemistry, it is an important analytical reagent. Because of its selective reaction to specific metal ions, it can keenly detect its presence and content with high accuracy. For example, detecting iron ions, it can form complexes with characteristic colors, which can help analysts to see clearly. Furthermore, in pharmaceutical research, or as a raw material for potential lead compounds, paving the way for the creation of new drugs. Looking at its use, it is of crucial significance in industry and scientific research, and it is an indispensable chemical substance.
Research & Development
Recently, the research on 2 - Hydroxy Naphthalene - 3,6 - Disulfonic Acid Sodium Salt (R Salt) is quite important in the academic community. I have devoted myself to studying its properties in detail. It has unique uses in chemical synthesis. Looking at the works of previous people, there are many undetailed places.
I have conducted many experiments to observe the reaction and analyze the beauty of its structure. It was found that under specific temperature, pressure and catalytic agent, the rate and yield of the reaction changed significantly. And it has potential in dyeing, medicine and other fields.
In order to explore its better application, I continue to adjust the conditions and optimize the path. Although the process is difficult, I am determined. I hope to borrow my research to explore new paths for its development, so that it can shine in various industries, be used by the world, and benefit the society.
Toxicity Research
The toxicity of 2 - Hydroxy Naphthalene - 3,6 - Disulfonic Acid Sodium Salt (R salt) was studied. This substance is widely used, but its toxicity is not detailed. We studied it with ancient methods to observe its effects on various substances. Take white mice, rabbits, etc. as experiments, and apply them in different doses to observe their physiological changes and abnormal behavior. It is also observed that it decomposes in water and soil to explore its harm to the environment. In the hope of obtaining detailed results to clarify the toxicity of R salt, it will be used as a guide for those who use this substance in the future, so that it can avoid its harm and use its benefits, and preserve the safety of life and the environment.
Future Prospects
Taste the way of chemical industry, with each passing day, new things emerge one after another. Today there is 2 - Hydroxy Naphthalene - 3,6 - Disulfonic Acid Sodium Salt (R Salt). Although this product is not widely known, its future prospects are limitless.
This agent has a unique structure and different properties. In the printing and dyeing industry, it may emerge, making the colors more gorgeous, and the fastness is better, adding a lot of color to the fabric. In the field of scientific research, it may become a powerful tool to help students explore the unknown and solve many chemical mysteries.
As a chemical researcher, we should devote ourselves to research and explore its potential. With time, we may be able to expand our applications, shining brightly in medicine and materials, and bringing benefits to the world. This is our hope for the future.
Frequently Asked Questions
What is the chemical structure of 2-Hydroxy Naphthalene-3,6-Disulfonic Acid Sodium Salt (R Salt)
The chemical structure of 2-hydroxynaphthalene-3,6-disulfonic acid, sodium salt (R salt), is a research field in the field of organic chemistry. The basic structure of this compound can be inferred from its name. "2-hydroxynaphthalene" indicates that its core structure is a naphthalene ring, and it is connected by a hydroxyl group (-OH) at position 2. The naphthalene ring has the characteristics of fused biphenyl ring, and the structure is stable, which lays the skeleton foundation for the whole molecule.
"3,6-disulfonic acid" is clearly shown at the 3rd and 6th positions of the naphthalene ring, each connected with a sulfonic acid group (-SO 🥰 H). The sulfonic acid group has strong hydrophilicity, which changes the solubility of the compound in water. Sulfonic acid is basically composed of sulfur atoms connected to three oxygen atoms, and one of the oxygen atoms is connected to naphthalene ring carbon, showing unique chemical activity and electronic effect.
And "sodium salt" means that the hydrogen atom in the sulfonic acid group is replaced by sodium ion (Na
). The substitution of sodium ions not only changes the charge properties of the compound, but also significantly affects its physical and chemical properties, such as melting point, boiling point, solubility, etc. This substitution forms ionic bonds, which enhances the intermolecular forces, which in turn affects its behavior in different solvents.
In summary, the chemical structure of 2-hydroxy naphthalene-3,6-disulfonic acid, sodium salt (R salt), is composed of a naphthalene ring as the skeleton, with hydroxyl groups, sulfonic acid groups, and sodium ions as salts. The interaction of the various parts gives the compound its unique chemical and physical properties, and it exhibits specific functions in many chemical processes and industrial applications.
What are the main uses of 2-Hydroxy Naphthalene-3,6-Disulfonic Acid Sodium Salt (R Salt)
2-Hydroxy-naphthalene-3,6-disulfonic acid, sodium salt (R salt), has a wide range of uses. In the dye industry, it is a key intermediate for the preparation of azo dyes. This salt can be reacted with many aromatic amines and phenolic compounds through diazotization-coupling to obtain azo dyes with brilliant colors and good fastness. It is used for dyeing and printing of fabrics, leather, etc., to make its color bright and lasting.
In the field of analytical chemistry, R salts also develop their strengths. Often used as a color developer of metal ions, it can form complexes with specific metal ions, such as cobalt, nickel, etc., to form complexes with specific colors. By spectrophotometry, the content of such metal ions in samples can be accurately determined, and it plays an indispensable role in ore analysis, water quality monitoring, biological sample detection, and many other aspects.
In addition, in the pharmaceutical and chemical industries, it is also involved. Although it is not the main component of drugs, it acts as an important intermediate in the process of drug synthesis, assisting in the synthesis of compounds with specific pharmacological activities, providing key raw material support for the development and production of new drugs.
In addition, in the preparation of some fine chemical products, R salts can participate in the reaction, giving the product specific properties, such as improving the solubility and stability of the product, thereby improving the quality and application effect of fine chemical products.
2-Hydroxy Naphthalene-3,6-Disulfonic Acid Sodium Salt (R Salt) What to pay attention to when storing
When storing 2-hydroxy-naphthalene-3,6-disulfonic acid, sodium salt (R salt), it is advisable to pay attention to all conditions. This material is delicate and can change its properties when exposed to light, heat, and moisture. Therefore, it is necessary to choose a dry, cool and dark place to hide it.
The first weight is dry, because moisture is easy to induce deliquescence, causing changes in properties and loss of efficiency. Therefore, when the storage place is equipped with dehumidification, the air must be dry and the humidity is constant in a suitable area, so as not to be disturbed by water vapor.
Cool is also essential. High temperature can promote its chemical reaction, or cause decomposition and deterioration. It should be stored at a lower temperature, usually no more than 20 degrees Celsius, to avoid exposure to direct sunlight or near heat sources.
Avoidance from light is particularly critical. Light can trigger photochemical reactions, causing R salt structure to be broken and quality to deteriorate. Therefore, it is appropriate to use shading materials, such as brown bottles and cans, and store them in a dark room, or cover them with shielding materials to keep out light.
In addition, isolation from other substances cannot be ignored. R salts may react with certain substances to damage their purity. Therefore, they should be kept alone and should not be mixed with acids, bases, oxidants, etc., to prevent unexpected changes.
Furthermore, the storage place must be well ventilated. Turbid gas accumulates, or contains impurities that affect R salt, which can be driven away by unobstructed wind to ensure its quality is constant.
When storing, you should also pay attention to the clear logo, and note the name, specification, batch, date, etc. in detail, which is convenient for follow-up, and use according to the first-in, first-out rule to prevent it from being stored for a long time and causing rot. In this way, it can be properly stored, and the R salt will not lose its character for a long time, so as to be used later.
What is the preparation method of 2-Hydroxy Naphthalene-3,6-Disulfonic Acid Sodium Salt (R Salt)?
The preparation method of 2-hydroxy-naphthalene-3,6-disulfonic acid, sodium salt (R salt) is as follows:
The first naphthalene is taken as the initial raw material, and the sulfonation reaction is carried out under specific conditions with concentrated sulfuric acid. In this process, concentrated sulfuric acid acts as a sulfonation reagent and interacts with naphthalene. The reaction conditions are quite critical, and the temperature needs to be precisely controlled within a suitable range. Generally speaking, the reaction temperature should be maintained at a certain range. If the temperature is too high, it may cause frequent side reactions and generate many unnecessary by-products; if the temperature is too low, the reaction rate will be delayed and take a long time.
After the sulfonation reaction, a sulfonic acid group is introduced at a specific position on the naphthalene molecule, and then a n Subsequently, oxidation and hydroxylation steps are applied to the intermediate product. Appropriate oxidizing agents are selected to promote the oxidation reaction of the intermediate product in a suitable reaction environment, and hydroxyl groups are introduced to obtain 2-hydroxy-naphthalene-3,6-disulfonic acid.
Finally, the obtained 2-hydroxy-naphthalene-3,6-disulfonic acid is reacted with basic substances such as sodium hydroxide, and through this acid-base neutralization process, 2-hydroxy-naphthalene-3,6-disulfonic acid, sodium salt, that is, R salt, can be obtained. During the entire preparation process, the conditions of each step of the reaction, such as temperature, reaction time, and the proportion of reactants, need to be carefully adjusted to ensure that the purity and yield of the product meet expectations before high-quality R salts can be prepared.
What are the physical and chemical properties of 2-Hydroxy Naphthalene-3,6-Disulfonic Acid Sodium Salt (R Salt)
2-Hydroxy-naphthalene-3,6-disulfonic acid, sodium salt (R salt) has many physical and chemical properties. Its properties are mostly white to light gray powder, which has good solubility in water and can form a homogeneous solution. This property is conducive to the reaction and application in aqueous solution systems.
R salts are relatively stable in chemical properties, but under certain conditions, hydroxyl groups and sulfonic acid groups can participate in the reaction. Hydroxy groups have certain activity and can undergo esterification, etherification and other reactions. For example, under appropriate catalyst and reaction conditions with acids, corresponding ester compounds can be formed. Sulfonic acid groups are strong acidic groups, making R salts acidic and can neutralize with bases to generate corresponding salts.
From the perspective of spectral characteristics, because the molecule contains a conjugated system, there is a characteristic absorption peak in the ultraviolet-visible region. This characteristic can be used for qualitative and quantitative analysis. The wavelength and intensity of the absorption peak can be determined by spectrometer, and the existence and content of R salt can be identified.
Furthermore, the R salt crystal structure is unique, and the atoms in the molecule are arranged in an orderly manner. Its structure can be accurately determined by X-ray diffraction and other techniques, which is of great significance for understanding its physical and chemical properties and reaction mechanism. Under different temperatures and pressures, some properties of R salts may change, such as solubility and stability. Studying these changes is crucial for their application under different conditions.