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1-(4-Sulfo-1-Naphthylazo)-2-Hydroxy-6,8-Naphthalenedisulfonic Acid Trisodium Salt

Lingxian Chemical

Specifications

HS Code

784080

Chemical Name 1-(4-Sulfo-1-Naphthylazo)-2-Hydroxy-6,8-Naphthalenedisulfonic Acid Trisodium Salt
Molecular Formula C20H12N2Na3O9S3
Molecular Weight 604.49 g/mol
Appearance Most likely a colored powder (due to azo group, usually red - orange - yellow)
Solubility Soluble in water (due to sodium salt and sulfonic acid groups)
Ph Aqueous solutions are likely to be slightly basic as it is a trisodium salt
Stability Stable under normal conditions, but may be sensitive to light (azo compounds can undergo photodegradation)
Absorption Maximum Absorbs in the visible region, characteristic of azo dyes, typically around 400 - 600 nm
Pka The phenolic -OH group has a pKa value, likely around 9 - 10 for the phenolic proton
Use Used as a dye in textile, paper, and leather industries
Packing & Storage
Packing 100g of 1-(4-Sulfo - 1 - Naphthylazo)-2 - Hydroxy - 6,8 - Naphthalenedisulfonic Acid Trisodium Salt in sealed pouch.
Storage Store “1-(4 - Sulfo - 1 - Naphthylazo)-2 - Hydroxy - 6,8 - Naphthalenedisulfonic Acid Trisodium Salt” in a cool, dry place, protected from direct sunlight. Keep it in a tightly - sealed container to prevent contact with moisture and air, which could lead to decomposition. Away from incompatible substances to avoid potential chemical reactions.
Shipping 1-(4 - Sulfo-1-Naphthylazo)-2-Hydroxy-6,8-Naphthalenedisulfonic Acid Trisodium Salt is shipped in well - sealed containers, following chemical safety regulations. Special attention is given to protect from moisture and ensure secure transit.
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1-(4-Sulfo-1-Naphthylazo)-2-Hydroxy-6,8-Naphthalenedisulfonic Acid Trisodium Salt
General Information
Historical Development
The historical evolution of 1 - (4 - sulfonyl - 1 - naphthyl azo) -2 - hydroxy - 6,8 - naphthalene disulfonic acid trisodium salt is worth exploring. In the past, chemical techniques were not exquisite, and the understanding of this thing was still shallow. However, with the passage of time, chemists have deepened their research and explored it.
At first, only some of its properties were known, but the whole picture was not known. After repeated experiments by many wise men, analyzing the components and exploring the characteristics, the method of synthesis has also been improved. From the simple method, it has gradually become more refined, and the quality of the output has become more and more sophisticated.
From the ignorance of the past to the clarification of its structure, properties and uses today, it is due to the unremitting efforts of chemical researchers of all ages. The historical development of this compound is like a long scroll, slowly spreading out, witnessing the progress and sublimation of chemistry.
Product Overview
Today there is a product called 1- (4-sulfonyl-1-naphthyl azo) -2-hydroxy-6,8-naphthalene disulfonic acid trisodium salt. This is the chemical I have dedicated myself to studying. Its unique nature, appearance or a specific state, and color is also characteristic. In the field of chemistry, it has a wide range of uses and can be applied to many experimental and industrial processes. Its structure is exquisite, and it is composed of naphthalene groups, sulfonyl groups and other groups. The preparation method requires precise craftsmanship and control of the reaction conditions. Temperature and duration are all key. This product has also attracted attention in the industry because of its excellent performance, which may promote the progress of related fields and contribute to the development of chemistry. I will continue to study it in order to explore its potential and expand its application scope.
Physical & Chemical Properties
1 - (4 - sulfonyl - 1 - naphthyl azo) - 2 - hydroxy - 6,8 - naphthalene disulfonic acid trisodium salt, physical and chemical properties are essential. Its color is bright and bright, it is easily soluble in water, and the solution is uniform. In terms of chemical properties, it is powdery, delicate and pure. In terms of chemical properties, it has an azo structure, and its properties are slightly different in case of specific reagents, or under acid-base conditions. Due to the presence of sulfonyl groups and other groups, with ionic characteristics, in a specific reaction system, it can be used as an active ingredient to interact with other substances and participate in the process of chemical synthesis. It is commonly used in the chemical industry, dyeing and weaving, etc. Due to its unique physical properties, it has become a key element in various products and has special functions.
Technical Specifications & Labeling
There is now a product named 1- (4-sulfonyl-1-naphthyl-azo) -2-hydroxy-6,8-naphthalene disulfonate trisodium salt. In the field of my chemical research, the technical specifications and identification (product parameters) of this substance are crucial.
To check its technical specifications, it is necessary to carefully review various parameters, such as purity geometry and impurity content, which are related to its effectiveness in various chemical reactions. And its physical properties, color, state, taste, etc., cannot be ignored, which are all factors that determine its quality.
When it comes to identification, it is necessary to clarify the characterization of its chemical structure to ensure that its composition is correct. Product parameters should also be accurately labeled, such as molecular weight, melting point, boiling point, etc., so that users can use them reasonably. In this way, it can achieve its optimal effect, which is helpful for chemical research and production.
Preparation Method
To prepare 1- (4-sulfonyl-1-naphthyl-azo) -2-hydroxy-6,8-naphthalene disulfonic acid trisodium salt, the method is as follows:
Raw materials and production process: select pure naphthalene, sulfonate to obtain 4-sulfonyl-1-naphthalamine, and then couple with 2-hydroxy-6,8-naphthalene disulfonic acid under suitable conditions. The raw materials must be carefully screened to ensure purity.
Reaction steps: first sulfonate naphthalene at a specific temperature and catalyst, precisely control the temperature, and then obtain the sulfonated product. After that, it is mixed with 2-hydroxy-6,8-naphthalenedisulfonic acid in an alkaline medium in proportion, stirred to promote the coupling reaction, and closely monitored the reaction process.
Activation mechanism: In the reaction system, an appropriate amount of activator is added to enhance the activity of the reactants, reduce the reaction energy barrier, accelerate the reaction, and improve the yield and purity of the product. In this way, 1- (4-sulfo-1-naphthaleneazo) -2-hydroxy-6,8-naphthalenedisulfonic acid trisodium salt can be prepared.
Chemical Reactions & Modifications
There is now a product named 1- (4-sulfonyl-1-naphthyl-azo) -2-hydroxy-6,8-naphthalene disulfonate trisodium salt. In the field of chemistry, its reaction and modification are worth studying.
The chemical reaction of this product is related to many mechanisms. Functional group interactions in its structure, or nucleophilic and electrophilic reactions, affect the formation of products. To clarify the details, the activity and reaction conditions of each group must be investigated.
As for modification, chemical means can be used to adjust its characteristics. Or introduce new groups to change their polarity and stability to suit various needs. After modification, or the solubility and reactivity are changed, and its use is broadened.
All of these are for chemical researchers to investigate carefully to understand the beauty of the reaction and modification of this substance and pave the way for future applications.
Synonyms & Product Names
1 - (4 - sulfonyl - 1 - naphthyl azo) -2 - hydroxy - 6,8 - naphthalene disulfonic acid trisodium salt, which is often used in dyeing workshops. Its synonymous name, or "naphthol red S", is also well known in the industry.
This product has a bright color, and when the fabric is colored, it can make the color stable and bright. It has a wide range of uses in the dyeing and weaving industry, and can add color to many fabrics. In the heritage of dyeing workshops in the past, this product was often prepared in a delicate way to make it work best. From silk to cotton and linen, it can be dyed to get colorful colors. Therefore, the synonym "naphthol red S" is often mentioned among dyeing craftsmen, just like the original name, carrying the past and present of dyeing technology.
Safety & Operational Standards
1 - (4 - sulfonyl - 1 - naphthyl azo) -2 - hydroxy - 6,8 - naphthalene disulfonic acid trisodium salt, this chemical substance is related to safety and operating standards, and it is essential.
When preparing, it is necessary to strictly follow the procedures. The operator must wear special protective clothing, wear tough protective gloves, and cover the face with precision protective equipment to prevent this material from touching the skin and invading the path of breathing. When the preparation place is well ventilated, the air circulation is unobstructed, and it is far away from all fire sources and hot topics, it must not be neglected because it may be flammable.
When storing, it should also be treated with caution. It should be placed in a dry, cool and well-ventilated place, away from strong acids, strong alkalis and strong oxidizing agents. When these substances encounter it, they may react violently and cause a dangerous appearance. And indicate its characteristics and precautions with clear signs to prevent misuse.
When using, take it in a precise way. Do not increase or decrease the dose at will, so as not to affect the results of the experiment and prevent accidents. After use, the utensils must be cleaned in a special way to remove the residual materials and prevent them from polluting the environment or affecting subsequent use.
If you accidentally touch this object and splash it on the skin, you should immediately rinse it with plenty of water, and then seek medical treatment. If it enters your eyes, you need to race against time, rinse it slowly with water, and go to the medical office quickly for professional help. In case of emergency situations such as fires, you need to choose suitable fire extinguishers according to their characteristics, and must not act blindly.
In short, for 1- (4-sulfonyl-1-naphthyl azo) -2-hydroxy-6,8-naphthalene disulfonate trisodium salt, from preparation to use, and then storage, all need to be careful, in accordance with safety and operating standards, in order to ensure that everything goes smoothly and is safe.
Application Area
1 - (4 - sulfonyl - 1 - naphthyl azo) - 2 - hydroxy - 6,8 - naphthalene disulfonate trisodium salt is useful in various application fields. In the field of dyeing and weaving, it can be used as a dye, with its unique chemical conformation, it can dye the fabric with a brilliant and firm color, and the color is lasting and not easy to fade. In the field of analytical chemistry, it can be used as an indicator to accurately determine the reaction process and end point by the change of color in different chemical environments. In the field of material science, it can also participate in the preparation of special materials, giving materials specific optical or chemical properties. This material has significant value in many practical fields and plays a significant role in promoting the development of related industries.
Research & Development
In recent years, Yu devoted himself to the study of chemical products, focusing on 1- (4-sulfonyl-1-naphthyl azo) -2-hydroxy-6,8-naphthalene disulfonate trisodium salt. At first, explore its physical and chemical properties, analyze its molecular structure, and know that its structure is exquisite and its properties are specific.
Then, study its preparation method. After several attempts, adjust the preparation of raw materials, control the temperature of the reaction, observe the degree of time, and finally obtain a good method. The yield gradually increases and the quality is also excellent.
This product is available in many industrial fields. For dyeing and weaving, the color is firm and bright; for scientific research, it is an important reagent. In the remaining period, it can be used more widely and promote the progress of the industry. Unremitting research, hoping for more breakthroughs in the future, and promoting the development of this chemical to benefit everyone.
Toxicity Research
Toxicity Study of 1- (4-sulfonyl-1-naphthyl-azo) -2 -hydroxy-6,8 -naphthalene disulfonate trisodium salt
The toxicity of 1- (4-sulfonyl-1-naphthalene-azo) -2 -hydroxy-6,8 -naphthalene disulfonate trisodium salt needs to be investigated in detail. This compound may involve various fields of chemical industry.
First look at its structure, containing naphthalene group, sulfonyl group and azo group. Azo group, in some cases, may release aromatic amines, which are mostly toxic. However, the specific toxicity of this compound is still to be determined by experiments.
In animal experiments, its effect on organs can be observed. Oral intake, observe the changes in the digestive system, liver, kidney, etc. If the liver is enlarged and the liver function indexes are abnormal, it may indicate hepatotoxicity. Percutaneous contact, depending on whether the skin has redness, swelling, allergies, etc.
And when its toxicity to cells. In vitro cell experiments, observe its effect on cell proliferation and apoptosis. If it can inhibit cell proliferation and induce apoptosis, the toxic effect can be known.
Comprehensive multi-party studies can determine the toxicity of 1- (4-sulfonyl-1-naphthyl azo) -2 -hydroxy-6,8 -naphthalene disulfonate trisodium salt, and provide evidence for its safe use, protection and Environmental Impact Assessment.
Future Prospects
In today's world, science and technology are changing day by day. In the field of chemistry, many new things are coming out frequently. 1- (4 - Sulfo - 1 - Naphthylazo) -2 - Hydroxy - 6,8 - Naphthalenedisulfonic Acid Trisodium Salt This thing is like a new star in the road of chemical research.
Although the knowledge is still limited at present, our generation will explore its subtleties with the heart of research. It is expected that in the future, this compound may come to the fore in material preparation and drug research and development. With the power of scientific research, analyze its properties in detail, explore its reaction, and hope to expand its use and add color to the world. To make this substance bloom in the undiscovered field and become the cornerstone of future scientific and technological progress, in order to meet the various needs of the future, is also the ambition of our chemical researchers.
Frequently Asked Questions
What is the chemical structure of 1- (4-Sulfo-1-Naphthylazo) -2-Hydroxy-6, 8-Naphthalenedisulfonic Acid Trisodium Salt?
1-% 284-sulfonyl-1-naphthyl azo% 29-2-hydroxy-6% 2C8-naphthalene disulfonic acid trisodium salt, this is an organic compound. Its chemical structure is complex and delicate, and it is formed by naphthalene ring as the base and cleverly connected.
Looking at its structure, its naphthalene ring is located at 1 position, and 4-sulfonyl-1-naphthalene is connected by azo bond. This azo bond is like a bridge, communicating two important structural units, giving the compound special photochemical and electronic properties. The presence of hydroxyl groups at 2 positions adds active hydrogen to the structure, which can participate in many chemical reactions and affect molecular polarity and hydrogen bonding.
Furthermore, the 6 and 8 positions are respectively connected with sulfonic acid groups, which have strong hydrophilicity and greatly affect the solubility and surface activity of the compound. The whole compound is in the form of trisodium salt, the interaction between sodium ions and sulfonic acid groups stabilizes the structure, and can be ionized in aqueous solution, which affects the ionic strength and chemical behavior.
Such a structure makes the compound have unique uses in dyes, pigments and other fields. With its structural characteristics, it can realize the dyeing or color development function of specific substrates to meet the needs of various applications.
1- (4-Sulfo-1-Naphthylazo) -2-Hydroxy-6, 8-Naphthalenedisulfonic Acid Trisodium Salt What are the main application fields
1-% 284-sulfonyl-1-naphthyl azo% 29-2-hydroxy-6% 2C8-naphthalene disulfonate trisodium salt, this compound is widely used in printing and dyeing, textile, papermaking, leather and other industries.
In the printing and dyeing industry, it can be used as a dye. Because of its specific molecular structure and functional group, it can dye fabrics with bright colors, good affinity for fibers, and high dyeing fastness, whether it is natural fibers such as cotton and linen, or synthetic fibers such as polyester and nylon, it can be used for coloring to meet various printing and dyeing needs.
In the textile industry, in addition to dyeing, it can also be used as a mordant. It can form a stable complex with fibers and dyes, improve the degree of fixation of dyes on fibers, enhance the dyeing effect, ensure uniform and long-lasting color, and prevent fading.
In the field of papermaking, the compound can be used for paper dyeing, giving paper a specific color, meeting the color requirements of different paper products such as packaging paper and decorative paper, while improving the optical properties of paper, enhancing whiteness and gloss.
In the leather industry, as a leather dye, it has good permeability and adhesion to leather. After dyeing, the leather color is full, natural, soft to the touch, and it can enhance the light resistance, water resistance and wear resistance of leather, prolonging the service life of leather products.
In summary, 1-% 284-sulfo-1-naphthyl azo% 29-2-hydroxy-6% 2C8-naphthalene disulfonate trisodium salt plays a key role in many industrial fields. With its unique chemical properties, it adds color to products in various industries and enhances product quality and performance.
What are the physical properties of 1- (4-Sulfo-1-Naphthylazo) -2-Hydroxy-6, 8-Naphthalenedisulfonic Acid Trisodium Salt
1 - (4 - sulfonyl - 1 - naphthyl azo) - 2 - hydroxy - 6,8 - naphthalene disulfonic acid trisodium salt, this is an organic compound. Its physical properties are rich and diverse, let me tell them one by one.
Looking at its appearance, it is often powdery, and its color may vary from orange to red. This compound has good solubility in water. Because its structure contains multiple sulfonic acid groups, this group is hydrophilic, so it can be well dispersed in water to form a uniform solution.
When it comes to melting point, due to the complexity of molecular structure, the exact melting point is difficult to generalize, and usually needs to be carefully determined by experiment. However, in general, such organic compounds have relatively high melting points, which is due to the strong intermolecular forces.
As for the density, it also needs to be determined by precise experiments. Due to its complex molecular structure, different synthesis paths or their microstructures are slightly different, which in turn affects the density.
In addition, the stability of the compound is also worthy of attention. Under normal temperature and pressure, its stability is acceptable, but under extreme conditions such as strong acid, strong base or high temperature, or chemical reactions occur, resulting in structural changes. For example, in a strong acid environment, sulfonic acid groups or protons affect the properties of the compound; under strong base conditions, hydroxyl groups may react and change the molecular structure.
In summary, the physical properties of 1- (4-sulfonyl-1-naphthyl azo) -2-hydroxy-6,8-naphthalene disulfonate trisodium salt are influenced by its complex structure, and they exhibit different characteristics under different conditions. In practical applications, it needs to be carefully considered.
1- (4-Sulfo-1-Naphthylazo) -2-Hydroxy-6, 8-Naphthalenedisulfonic Acid Trisodium Salt What to pay attention to when storing and transporting
1-% 284-sulfonic acid-1-naphthyl azo% 29-2-hydroxy-6% 2C8-naphthalene disulfonic acid trisodium salt, this is a chemical substance. When storing and transporting, you need to pay attention to many matters.
Let's talk about storage first. First, you must choose a dry place. This substance is afraid of moisture and humid places, which can easily cause it to deteriorate, and its efficacy or chemical properties are damaged. Second, it should be placed in a cool place. High temperature will make the chemical structure of the substance unstable, causing decomposition or other adverse reactions. Third, sealed storage is indispensable. Sealing can prevent it from coming into contact with air and avoid reactions such as oxidation.
Besides transportation, first, the packaging must be tight. Fill the buffer material in a suitable container to prevent package damage caused by collision and extrusion during transportation. Second, it is isolated from other chemicals. Due to its special chemical properties, if it is mixed with unsuitable chemicals or reacts violently, it will be dangerous. Third, the transportation temperature needs to be controlled. Follow the specified temperature range for transportation to prevent abnormal temperature from changing the properties of substances.
Storage and transportation of 1-% 284-sulfonic acid-1-naphthalene azo% 29-2-hydroxy-6% 2C8-naphthalene disulfonate trisodium salt, pay attention to the dry and cool environment, tight packaging, isolation of other chemicals and temperature control, so as to ensure its stability and transportation safety.
1- (4-Sulfo-1-Naphthylazo) -2-Hydroxy-6, What is the production method of 8-Naphthalenedisulfonic Acid Trisodium Salt?
1-% 284-sulfonyl-1-naphthalenyl azo% 29-2-hydroxy-6% 2C8-naphthalenedisulfonic acid trisodium salt, this is an important chemical raw material, and its preparation method is quite critical. In the past, the preparation of this product required several steps and many reactions.
First, naphthalene is used as the initial material. Under specific conditions, the naphthalene is interacted with sulfuric acid to obtain 1-naphthalenesulfonic acid. This reaction requires fine regulation of temperature and reaction time. If the temperature is too high, side reactions will occur frequently, and if it is too low, the reaction will be delayed.
Then, 1-naphthalenesulfonic acid is nitrified to form 4-nitro-1-naphthalenesulf In this step, it is also necessary to accurately grasp the conditions, such as the choice of reaction medium and the amount of nitrifying reagent, which are all related to the purity and yield of the product.
Then by reduction method, 4-nitro-1-naphthalenesulfonic acid is converted into 4-amino-1-naphthalenesulfonic acid. Commonly used reducing agents have their own advantages and disadvantages, and need to be selected according to the actual situation.
Subsequently, 4-amino-1-naphthalenesulfonic acid and sodium nitrite undergo diazotization in an acidic environment to obtain diazonium salts. The diazotization reaction is quite sensitive to conditions, and slight deviations in acidity and temperature affect the quality of the product.
Another 2-hydroxy-6% 2C8-naphthalene disulfonic acid is taken and coupled with the above diazonium salt to finally generate 1-% 284-sulfo-1-naphthalene azo% 29-2-hydroxy-6% 2C8-naphthalene disulfonic acid trisodium salt. This step requires attention to the pH value and temperature of the reaction system to promote the smooth coupling.
In the preparation process, each step needs to strictly control the conditions, carefully operate, and supplement with suitable separation and purification methods to obtain high-quality products to meet the needs of industry and scientific research.