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What is the chemical structure of Disodium 4- [ (E) - (2,4-Dimethylphenyl) Diazenyl] -3-Hydroxynaphthalene-2, 7-Disulfonate
This is a description of the chemical nomenclature, and the corresponding chemical structure is explained as follows:
The name of this compound is disodium + 4- [ (E) - (2,4-dimethylphenyl) azo] -3-hydroxynaphthalene-2,7-disulfonate. The approximate structure can be inferred from its name.
The first word "disodium" indicates that there are two sodium ions in the compound, or it is combined with a negatively charged group in the compound by ionic bonds.
"4- [ (E) - (2,4-dimethylphenyl) azo]" part, it can be seen that at the 4th position of the naphthalene ring, a specific substituent is connected. This substituent contains a double bond of the (E) configuration, which connects 2,4-dimethylphenyl and azo groups. The (E) configuration refers to the larger group on both sides of the double bond in the trans position. 2,4-dimethylphenyl, which is a methyl group attached to each position 2 and 4 on the benzene ring. The azo group has a -N = N-structure, which acts as a bridge between the phenyl group and the naphthalene ring.
"3-Hydroxynaphthalene-2,7-disulfonate", indicating that there is a hydroxy-OH at position 3 of the naphthalene ring, and the sulfonic acid group-SO at position 2 and position 7 are respectively connected, and due to the presence of disodium, this disulfonic acid group forms a salt with sodium ions.
In summary, the chemical structure of this compound consists of a naphthalene ring as the core, which is connected with a hydroxyl group, a sulfonic acid group and a specific azo-containing phenyl substituent, and sodium ions form a salt with the sulfonic acid group to form the structure of this compound.
What are the main uses of Disodium 4- [ (E) - (2,4-Dimethylphenyl) Diazenyl] -3-Hydroxynaphthalene-2, 7-Disulfonate
Disodium 4- [ (E) - (2,4-dimethylphenyl) azo] -3-hydroxynaphthalene-2,7-disulfonate, an organic compound. It has a wide range of uses and is commonly used in the dyeing and weaving industry as a dye component. Due to its special azo group and sulfonate group in the structure, it gives it good dyeing performance. It can effectively dye many fiber materials, such as cotton, linen, silk, etc., and has bright color and good fastness.
In the field of ink manufacturing, this compound is also indispensable. With its excellent solubility and color stability, it can make the ink show a clear and bright color, whether it is printing paper or other printing substrates, it can show a good printing effect, ensuring clear and long-lasting graphics.
In the leather processing industry, this substance can be used in the dyeing treatment of leather. It can make the leather dye a uniform and long-lasting color. At the same time, its sulfonate group has a certain hydrophilicity, which helps to improve the softness and waterproof performance of leather, so that the appearance and quality of leather products can be improved.
In addition, in some specific scientific research experiments, due to its unique chemical structure and properties, it can be used as a chemical reagent for some organic synthesis reactions, or as an analytical reagent for the detection of specific substances or the study of chemical reaction mechanisms. In summary, disodium 4- [ (E) - (2,4-dimethylphenyl) azo] -3-hydroxynaphthalene-2,7-disulfonate plays an important role in many fields, greatly promoting the development of related industries and the progress of scientific research.
What is the safety of Disodium 4- [ (E) - (2,4-Dimethylphenyl) Diazenyl] -3-Hydroxynaphthalene-2, 7-Disulfonate
This is a chemical substance, named "dimethyl4- [ (E) - (2,4-dimethylphenyl) azo] -3 -dimethylnaphthalene-2,7-disulfonic acid". Its safety needs to be investigated at multiple ends.
The first word toxicity is general. If the drug is injected with this substance, it is under specific doses, or the acute toxicity is not known. However, it should not be ignored. Due to the long-term and high-level exposure, it may be harmful. For example, it may cause liver damage, liver damage and other organs. It may be detectable during blood biochemical and pathological investigations.
Re-influence the environment, if this thing enters the environment, it may affect aquatic organisms. Or change the growth rate of algae, which will affect the aquatic food. In the soil, it may affect the activity of the soil microbial community, which will affect the biological function of the soil.
And if people are connected to the skin, or there is a possibility of sensitization, it may cause skin damage. If eaten, it may stimulate the digestive tract, causing heart disease, vomiting and other diseases.
It seems to be safe under some conditions, but it is still very careful to use and manage it. Follow the safety rules to ensure people's health and environmental safety.
Disodium 4- [ (E) - (2,4-Dimethylphenyl) Diazenyl] -3-Hydroxynaphthalene-2, 7-Disulfonate is widely used in which industries
A certain Chen asked "Disodium + 4- [ (E) - (2,4-dimethylphenyl) azo] -3 -hydroxynaphthalene-2,7 -disulfonate is widely used in any industry". This is a chemical substance with bright color and stability. In the printing and dyeing industry, it is often colored on fabrics, which can give fabrics brilliant colors, and the color is firm and not easy to fade. It is widely used in the printing and dyeing of various fiber fabrics such as cotton, linen, and silk. In the paper industry, it is also quite important. Dyeable paper, whether it is writing printing paper or exquisite packaging paper, can obtain the desired color and increase the beauty and commercial value of paper. In addition, the ink manufacturing industry is also commonly used to make the ink rich in color, and the printed patterns and characters are clear and colorful, which is widely used in books, posters, packaging and printing. In the field of pigment production, this substance is an important raw material, and the pigments produced are used for dyeing of paints, plastics, etc., such as architectural coatings and plastic products, to make the appearance of the product more attractive. Therefore, this substance is widely used in printing and dyeing, papermaking, inks, pigments and other industries, adding color to various industries and promoting their development.
What is the production method of Disodium 4- [ (E) - (2,4-Dimethylphenyl) Diazenyl] -3-Hydroxynaphthalene-2, 7-Disulfonate
The method of making disodium 4- [ (E) - (2,4-dimethylphenyl) azo] -3-hydroxy naphthalene-2,7-disulfonate is obtained by multi-step transformation.
At the beginning, take 2,4-dimethylaniline and make it react with an appropriate amount of sodium nitrite in acid solution at low temperature. Hydrochloric acid or sulfuric acid are commonly used in acid solution, and the temperature is controlled at 0 to 5 degrees Celsius. This temperature can maintain the stability of diazonium salt. After the reaction, a diazonium salt solution is obtained.
Next, prepare a solution of sodium 3-hydroxy naphthalene-2,7-disulfonate, pour it slowly into the above diazonium salt solution, and stir at the same time to control the pH value in the weakly basic range, about 8 to 9. At this time, the diazonium salt and 3-hydroxy naphthalene-2,7-disulfonate undergo a coupling reaction to form a disodium 4- [ (E) - (2,4-dimethylphenyl) azo] -3-hydroxy naphthalene-2,7-disulfonate crude product.
Thereafter, the crude product is subjected to a refining technique. First dissolve in a suitable solvent, such as hot water or a polar organic solvent, to filter out insoluble impurities. Then, by means of crystallization, or cooling, or adding a precipitant, the product precipitates pure crystals. The crystals are washed with solvent to remove residual impurities, and dried in vacuum to obtain a high-purity target product. The whole preparation process requires strict control of reaction conditions, such as temperature, pH value, proportion of reactants, etc., to ensure the quality and yield of the product.