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What is the chemical structure of Trisodium 4- [ (4-Anilino-5-Sulfonato-1-Naphthyl) Azo] -4-Hydroxy-1H-Naphthalene-2, 7-Disulfonate?
The name of this compound is 4- [ (4-anilinyl-5-sulfonate-sodium-1-naphthyl) azo] -4-hydroxy-1H-naphthalene-2,7-disulfonate trisodium. Its chemical structure is analyzed as follows:
The main body of this compound is constructed based on the structure of the naphthalene ring. First, the naphthalene ring is connected to the naphthalene ring at the 1H-naphthalene-2,7-disulfonate site, and there are three sodium ions (Na 🥰) here, which is where the name trisodium comes from.
At the 4-position of the naphthalene ring, a complex substituent is attached. The substituent begins with an azo group (-N = N-), which is attached at the 4-position of the naphthalene ring at one end and 4-aniline-5-sodium sulfonate-1-naphthalene at the other end. Where 4-aniline means that aniline is connected at the 4-position of 1-naphthalene (the structure where the phenyl ring is connected to the amino group), and 5-sodium sulfonate indicates that at the 5-position of 1-naphthalene is connected to the sodium sulfonate group (-SO 🥰 Na).
In addition, a hydroxyl group (-OH) is connected at the 4 position of the naphthalene ring. The entire compound structure is formed by the connection and combination of these groups, showing specific chemical properties and spatial configurations. It may have unique applications in dyes, chemical industries, etc. Because of the interaction between chromophores (such as azo groups) and chromophores (such as hydroxyl groups, sulfonic acid groups, etc.) in the structure, it may endow it with specific characteristics such as color and solubility.
What are the main uses of Trisodium 4- [ (4-Anilino-5-Sulfonato-1-Naphthyl) Azo] -4-Hydroxy-1H-Naphthalene-2, 7-Disulfonate?
Trisodium 4- [ (4-phenylamino-5-sodium sulfonate-1-naphthyl) azo] -4-hydroxy-1H-naphthalene-2,7-disulfonate, this is an organic compound with important uses in many fields.
First, in the dye industry, it is often used as a direct dye. Due to its unique azo and sulfonic acid groups in the structure, it has good water solubility and affinity for fibers. It can directly dye cotton, linen, silk, wool and other natural fibers and some synthetic fibers, and can dye fabrics with bright colors and high color fastness. It is widely used in the textile printing and dyeing industry to make fabrics show brilliant colors.
Second, in the paper industry, it can be used as a paper dye. By combining with paper fibers, it can give specific colors to paper, meet the dyeing needs of different paper products such as packaging paper and cultural paper, and improve the aesthetics and applicability of paper products.
Third, in the leather industry, this compound can be used for leather dyeing. With its good adhesion to leather fibers, it can make leather dye a uniform and long-lasting color, improve the quality and appearance of leather products, and make leather products more beautiful and durable.
Fourth, in the field of ink manufacturing, due to its good solubility and color stability, it can be used as a colorant for ink. To ensure smooth ink writing, clear color and not easy to fade, it is widely used in the manufacture of pen ink, inkjet printing ink, etc., to meet the needs of writing and printing.
What are the physical properties of Trisodium 4- [ (4-Anilino-5-Sulfonato-1-Naphthyl) Azo] -4-Hydroxy-1H-Naphthalene-2, 7-Disulfonate?
This is an organic compound called trisodium 4- [ (4-phenylamino-5-sodium sulfonate-1-naphthyl) azo] -4-hydroxy-1H-naphthalene-2,7-disulfonate. Its physical properties are as follows:
- ** Appearance **: Usually in powder form, this form is easy to store and transport, and it is easier to disperse in many reaction systems, which is conducive to the full progress of the reaction.
- ** Solubility **: It has a certain solubility in water. Due to its structure containing multiple sodium sulfonate groups, this group is hydrophilic, which promotes the compound to interact with water molecules, dissolve in water, and then participate in various chemical reactions in the aqueous phase system, or as a dye. When applied, it can be evenly dispersed on fabrics and other substrates.
- ** Color **: Often presents a specific color, which is attributed to its complex conjugate structure. The absorption and reflection properties of this structure cause the compound to exhibit a specific color. In the field of dyes, this property allows it to impart different colors to the dye.
- ** Stability **: Under normal conditions, it has certain stability. However, if it encounters extreme environments such as high temperature, strong acid, and strong alkali, its structure may be damaged. For example, when the temperature is high, the vibration of the chemical bonds in the molecule intensifies, or the bond is broken; in the strong acid and alkali environment, some functional groups in the molecule or chemical reactions occur, such as the sodium sulfonate group under the action of strong acid, or it will be converted into sulfonic acid form, which in turn affects its overall performance.
What is the synthesis method of Trisodium 4- [ (4-Anilino-5-Sulfonato-1-Naphthyl) Azo] -4-Hydroxy-1H-Naphthalene-2, 7-Disulfonate?
To prepare Trisodium 4- [ (4 - Anilino - 5 - Sulfonato - 1 - Naphthyl) Azo] - 4 - Hydroxy - 1H - Naphthalene - 2,7 - Disulfonate, the method is as follows:
First raw materials, take an appropriate amount of 4 - amino - 1 - naphthalene sulfonic acid, aniline and 4 - hydroxy - 2,7 - naphthalene disulfonic acid, etc. First, 4 - amino - 1 - naphthalene sulfonic acid is reacted by diazotization, treated with sodium nitrite and an appropriate amount of inorganic acid at low temperature, and the temperature is carefully controlled to form diazonium salts. This step requires beware of hydrolysis and side reactions. After the diazotization is complete, a diazonium salt solution is obtained for use.
In addition, aniline is reacted with appropriate reagents to introduce sulfonic acid groups to obtain 4-anilinyl-5-sulfonate sodium salt. Then it is coupled with the above diazonium salt solution under weakly basic conditions, mixed slowly, and stirred evenly, so that the coupling reaction of the two occurs to form an intermediate containing azo structure.
Then, this intermediate is reacted with 4-hydroxy-2,7-naphthalene disulfonic acid under specific conditions, or through condensation, substitution, etc., depending on the specific reaction mechanism. This process requires fine regulation of reaction temperature, pH and reaction time to promote the formation of the target product. After the reaction, the impurities are removed by separation and purification methods, such as crystallization, filtration, washing, etc., and finally Trisodium 4 - [ (4 - Anilino - 5 - Sulfonato - 1 - Naphthyl) Azo] - 4 - Hydroxy - 1H - Naphthalene - 2,7 - Disulfonate. All steps need to be careful and pay attention to details to obtain pure products.
What are the safety precautions for the use of Trisodium 4- [ (4-Anilino-5-Sulfonato-1-Naphthyl) Azo] -4-Hydroxy-1H-Naphthalene-2, 7-Disulfonate?
The author of "Tiangong Wuwu" is also an ancient scientific and technological book. In the operation room, make sure that the surrounding environment is clean and stable, and do not mix with easy-to-respond objects to prevent unexpected changes. If the ancients made medicines, they must observe the properties of the medicine, and use it appropriately, not contrary to it.
Second, the person who handles it should wear appropriate protective gear. Clothing to cover the body, do not let the skin touch it; covering the face with a mask to prevent it from entering the lungs; wearing gloves to protect the safety of the hands. The ancients worked hard, and they also knew to protect the body with objects, especially in today's chemical operations.
Furthermore, when storing, choose a dry and cool place. Avoid direct sunlight, and do not approach fire sources. Cover this thing or change its properties due to heat and light, losing its use or causing danger. In the past, it was also appropriate to hide things, and now it is even more important to be careful with chemical products.
Also, dispose of it after use, and do not discard it at will. Classify it according to regulations and hand it over to the company for disposal. Ancient waste, known to be properly disposed of, is now chemical waste, toxic and harmful to many people, can it be ignored?
In short, with "Trisodium 4 - [ (4 - Anilino - 5 - Sulfonato - 1 - Naphthyl) Azo] - 4 - Hydroxy - 1H - Naphthalene - 2,7 - Disulfonate", it is necessary to carefully observe the physical properties, and be careful about the operation, protection, storage, and disposal, so that the security is safe and appropriate.