What is the chemical structure of 3- [[4- (Phenylamino) Phenyl] Azo] Benzenesulfonic Acid Monosodium Salt
3 - [[4- (phenylamino) phenyl] azo] benzenesulfonic acid monosodium salt, this is an organic compound. Looking at its name, its chemical structure can be gradually analyzed.
"3-" indicates the position of the benzene ring where the substituent is located. In "[4- (phenylamino) phenyl] azo]", "phenylamino" means that the amino group is connected to the benzene ring, and this phenylamino phenyl is connected to the azo group. The azo group has a -N = N-structure, and its two ends are connected to different groups. Here, one end is 4- (phenylamino) phenyl, and the other end is connected to the monosodium salt of benzenesulfonic acid.
"Monosodium benzenesulfonate" indicates that the benzene ring is connected with a sulfonic acid group (-SOH), and a hydrogen of the sulfonic acid group is replaced by sodium to form a salt. Overall, the compound is composed of three main parts through a specific connection method, showing a unique chemical structure. Its structure contains multiple benzene rings, nitrogen-nitrogen double bonds, and sodium sulfonate, which endows this compound with specific chemical properties and reactivity. It may have applications in many chemical fields, such as dyes, organic synthesis, etc.
What are the main uses of 3- [[4- (Phenylamino) Phenyl] Azo] Benzenesulfonic Acid Monosodium Salt
3-%5B%5B4-%28Phenylamino%29Phenyl%5DAzo%5DBenzenesulfonic Acid Monosodium Salt, the Chinese name is often 3 - [ [ 4 - (anilinyl) phenyl] azo] sodium benzenesulfonate, this substance is widely used in industrial and scientific research fields.
In the dyeing and weaving industry, it is often used as a dye. Because its molecular structure contains azo groups, it can make the substance show bright colors, and has good affinity for fiber materials. It can firmly adhere to fabrics, achieve uniform coloring of fabrics, and the color will not fade for a long time. In ancient dyeing and weaving techniques, it also pursued the close combination of dyes and fabrics and the long-term retention of colors. The dyeing function of this substance is similar to that of ancient times when natural dyes were carefully dipped into fabrics, in order to achieve brilliant color and not darken over time.
In the field of analytical chemistry, it can be used as an acid-base indicator. Due to the change of its molecular structure in different pH environments, which in turn causes color changes, with this characteristic, the pH of a solution can be accurately judged. Remember that in ancient times, alchemists and healers also paid attention to observing the changes of substances under different conditions when exploring the characteristics of drugs or substances. The role of this indicator is like gaining insight into the essence of a solution through subtle changes.
In scientific research experiments, this substance can also be used to prepare functional materials. Researchers use its special structure and properties to introduce it into the material system through chemical synthesis, giving materials special properties such as optics and electricity, and assisting in the development of new materials. Just as ancient craftsmen used their unique skills to skillfully integrate different materials to create utensils that are both practical and beautiful, this substance also plays a unique role in material preparation, contributing to the development of scientific research.
What are the physical properties of 3- [[4- (Phenylamino) Phenyl] Azo] Benzenesulfonic Acid Monosodium Salt
3- [[4- (phenylamino) phenyl] azo] benzenesulfonic acid monosodium salt, this substance is often powdery in color, with many bright colors, or orange, scarlet, etc., depending on specific conditions. Its solubility is quite good, soluble in water, and can form a uniform dispersion system. This characteristic is derived from the hydrophilicity of the sulfonic acid group, which can strongly interact with water molecules.
Its stability is good at room temperature and pressure. However, in case of hot topics, open flames or strong oxidants, there is a risk, or it will decompose and release harmful gases. And it is quite sensitive to light. Under light, it may cause structural changes and color fading.
When it comes to melting point, due to the complex structure and the characteristics of sodium salts, there is no exact single melting point. It softens first and gradually decomposes when heated. The density also varies with the preparation conditions and purity.
This substance is widely used in the dye and pigment industries. With its azo structure and benzene ring system, it can produce rich colors, and has good dyeing properties. It can firmly adhere to fabrics and other substrates. And because of its sulfonic acid group, it can improve water solubility and affinity, making the dyeing process more efficient and uniform.
What is the synthesis method of 3- [[4- (Phenylamino) Phenyl] Azo] Benzenesulfonic Acid Monosodium Salt
3-% 5B% 5B4-% 28 phenylamino% 29 phenyl% 5DAzo% 5D benzenesulfonic acid monosodium salt can be synthesized according to the following steps.
First take an appropriate amount of aniline, place it in the reaction kettle, add an appropriate amount of sulfuric acid, make it fully mixed, and the reaction temperature is controlled in a suitable range, so that the aniline can be smoothly sulfonated to form p-aminobenzenesulfonic acid. This step requires close attention to the fluctuation of temperature to ensure the smooth progress of the reaction.
The obtained p-aminobenzenesulfonic acid is diazotized with sodium nitrite in an acidic medium. This process requires slowly adding sodium nitrite solution dropwise, and at the same time strictly measuring the temperature and acidity of the reaction system to ensure the stable formation of diazonium salts without decomposition.
Then take an appropriate amount of N-phenylaniline, add it to the above diazonium salt reaction solution, and carry out coupling reaction under appropriate temperature and pH conditions. During the reaction, stirring should be continued to promote full contact of the reactants to improve the reaction yield. With the progress of the reaction, the color of the solution can be seen gradually changing, which is the characteristic of the reaction process.
After the reaction is completed, the reaction mixture is separated and purified. It can be neutralized first, adjusted to a suitable pH range, followed by filtration, washing and other steps to remove impurities. Finally, through the drying process, a pure 3-% 5B% 5B4-% 28 phenylamino% 29 phenyl% 5DAzo% 5D benzenesulfonic acid monosodium salt product is obtained. Throughout the synthesis process, the reaction conditions of each step need to be precisely controlled in order to achieve the ideal synthesis effect.
What is the environmental impact of 3- [[4- (Phenylamino) Phenyl] Azo] Benzenesulfonic Acid Monosodium Salt
3 - [[4- (phenylamino) phenyl] azo] benzenesulfonic acid monosodium salt, this substance has a considerable impact on the environment. It may have multiple effects in the environment.
First, in the water environment, if this compound flows into rivers, lakes and seas, it may be difficult to degrade rapidly due to its own chemical structure. In this way, it may accumulate in water bodies and affect water quality. If aquatic organisms are exposed to water bodies containing this substance for a long time, it may cause physiological disorders. Such as the gill tissue of fish, or be stimulated by it, it will affect respiration and gas exchange, and then endanger survival.
Second, in the soil environment, if the waste containing this substance enters the soil, or changes the physical and chemical properties of the soil. It may interact with minerals and organic matter in the soil to affect soil fertility. The community structure and function of soil microorganisms may also be damaged. The growth, reproduction or inhibition of beneficial microorganisms in the soil is not conducive to the circulation and transformation of nutrients in the soil.
Third, in the atmospheric environment, although the substance mainly does not exist in gaseous form, under some special conditions, such as waste incineration, aerosol particles containing the substance and its decomposition products may be produced. If these particles are suspended in the atmosphere, people may cause damage to the respiratory system after inhalation, causing health problems such as respiratory inflammation.
Furthermore, the benzene ring, nitrogen and other chemical groups contained in this compound undergo complex chemical reactions in the environment, or generate more harmful derivatives, which further exacerbate the threat to the ecological environment and biological health. In short, 3- [[4- (phenylamino) phenyl] azo] benzenesulfonic acid monosodium salt has potential harm to the environment, and its production, use and discharge need to be treated with caution.