What is the chemical structure of Bis (8-hydroxyquinolinium) sulphate?

The author of "Bis (8-hydroxyquinolinium) sulphate" was written by the sage Song Yingxing, who recorded the wonders of all kinds of technological creations. However, he inquired about "Bis (8-hydroxyquinolinium) sulphate", which is the name of Western chemistry, not the category involved in "Tiangong Kaiwu". At that time, there was no such chemical name and cognition in China.

Today, in scientific terms, "Bis (8-hydroxyquinolinium) sulphate" is often called bis- (8-hydroxyquinolinium) sulphate in Chinese. Among its chemical structures, 8-hydroxyquinoline is an aromatic cyclic organic compound with nitrogen and oxygen heteroatoms. The molecule contains a structure of fused benzene ring and pyridine ring, and 8 positions have hydroxyl substitutions. In this salt, two 8-hydroxyquinoline cations are combined with the sulfate anion. The 8-hydroxyquinoline cation is formed by the protonation of 8-hydroxyquinoline, which is a common acid anion. Therefore, the two are connected by ionic bonds to form the chemical structure of this sulfate bis (8-hydroxyquinoline) salt, which shows specific chemical and physical properties.

What are the main uses of Bis (8-hydroxyquinolinium) sulphate?

"Bis (8-hydroxyquinolinium) sulphate" is a work of ancient science and technology, but it does not include "Bis (8-hydroxyquinolinium) sulphate". Today it is used by Junyan.

"Bis (8-hydroxyquinolinium) sulphate", the Chinese name is often bis (8-hydroxyquinoline) sulphate salt. Its use is quite extensive, first in the field of analytical chemistry. Because it can form complexes with many metal ions with specific properties, it is often used as a precipitant, extractant and color developer for metal ions. For example, when separating and measuring certain trace metal elements, it can be used to form stable complexes with metal ions to separate metal ions from complex systems, which is convenient for subsequent accurate analysis and helps chemists understand the composition and content of substances.

In the field of materials science, it also has important functions. It can be used as a raw material or additive for the preparation of specific functional materials. Due to its special molecular structure, it can endow materials with unique optical, electrical or chemical properties. For example, the addition of certain organic light-emitting materials can optimize the luminous efficiency and stability of materials, and contribute to the development of lighting and display technologies.

In the field of antibacterial and mildew prevention, it also has its capabilities. 8-Hydroxyquinoline part itself has a certain antibacterial activity. Bis (8-Hydroxyquinoline) sulfate salt can slowly release effective antibacterial ingredients in a specific environment, and has an inhibitory effect on many bacteria and molds. In coatings, wood protection and other industries, adding this substance can prolong the service life of materials and resist microbial attack.

What are the physical properties of Bis (8-hydroxyquinolinium) sulphate?

The author of "Tiangong Kaiwu", written by Yingxing in the Ming and Song Dynasties, detailed the principles of various things, but the book does not involve "Bis (8-hydroxyquinolinium) sulphate". Today I will use it as an agent to learn the physical properties of this substance as follows:

Bis (8-hydroxyquinolinium) sulphate, that is, bis (8-hydroxyquinoline) sulfate salt. Its appearance is often crystalline, mostly white or almost white powder, and its fine crystalline flickering luster can be seen under light. This is due to the regular arrangement of molecules and the formation of an ordered lattice structure.

On solubility, it exhibits certain solubility properties in polar solvents. Such as water, because the polarity of water molecules and the partial group of the salt molecule can form hydrogen bonds and other interactions, it has a certain solubility, but the solubility is not very high. In organic solvents, such as ethanol, according to the principle of similar miscibility, because ethanol has a certain polarity, it also has a certain solubility. However, compared with strong polar solvent water, the degree of solubility may be different.

Its melting point is relatively high, because there are various forces between molecules, such as ionic bonds, hydrogen bonds and van der Waals forces. Ionic bonds give strong electrostatic attractive forces between molecules, while hydrogen bonds strengthen intermolecular bonds. Although van der Waals forces are weak, many molecules work together to stabilize the overall structure, requiring a higher temperature to destroy the lattice and make it melt.

In addition, the salt can exhibit optical properties under specific conditions. Because the 8-hydroxyquinoline group has a conjugated structure, it can absorb specific wavelengths of light, causing it to emit fluorescence under the action of light. This property makes it potentially used in optical materials and other fields.

Its stability also has characteristics. Under normal environmental conditions, if there are no strong oxidizing agents, reducing agents or extreme acid-base conditions, it can exist relatively stably. However, in case of strong acids and bases, its ionic structure may be affected, and chemical reactions occur, resulting in changes in properties.

What are the preparation methods of Bis (8-hydroxyquinolinium) sulphate?

There are various ways to prepare bis (8-hydroxyquinoline) sulfate. First, 8-hydroxyquinoline can be reacted with sulfuric acid in an appropriate proportion. First, take an appropriate amount of 8-hydroxyquinoline and place it in a clean reaction vessel. This vessel should be made of glass to ensure that the reaction is not disturbed by impurities. Slowly add sulfuric acid dropwise, and the dropwise speed must be carefully controlled to prevent overreaction. In this process, it is necessary to continuously stir to make the two fully mixed. Temperature is also a key factor, and it is often controlled in a moderate range. Generally, it can be fine-tuned between room temperature and 50 degrees Celsius depending on the specific reaction situation. Through this reaction, the nitrogen atom of 8-hydroxyquinoline combines with the hydrogen ion of sulfuric acid to form bis (8-hydroxyquinoline) sulfate.

Second, a solvent-assisted method can be used. Select a suitable organic solvent, such as ethanol, acetone, etc., dissolve 8-hydroxyquinoline in it to form a uniform solution. Then, add sulfuric acid under stirring, and the sulfuric acid can also be uniformly dispersed in the system. The presence of a solvent can make the reaction milder and the purity of the product may be improved. After the reaction is completed, the crystal of bis (8-hydroxyquinoline) sulfate can be obtained by evaporating the solvent and cooling the crystallization.

Furthermore, the reaction conditions can be optimized to improve the preparation. Such as adjusting the concentration of reactants, changing the reaction time, etc. After repeated experiments, the optimal reaction parameters were explored to optimize the yield and purity of the product. There are various methods for preparing bis (8-hydroxyquinoline) sulfate, which need to be carefully selected and optimized according to actual needs and conditions.

What are the precautions for using Bis (8-hydroxyquinolinium) sulphate?

Bis (8-hydroxyquinoline) sulfate is a chemical substance. When using it, many matters must be paid attention to.

The first priority is safety. This substance may be toxic and irritating, touch the skin, eyes, or cause discomfort or even damage. Therefore, when using it, be sure to wear protective gear, such as gloves, goggles, and operate it in a well-ventilated place to prevent inhalation of its dust mist, vapor, and harm to the body.

The second time is to store it properly. It should be stored in a dry, cool place, away from fire and heat sources to prevent deterioration or cause danger. Because of its active chemical nature, it encounters or reacts with certain substances, so when storing, it must also be kept away from oxidants, acids and other substances.

Furthermore, when using, accurate weighing and matching are very critical. According to the specific needs of experiment and production, operate in strict accordance with specifications to achieve the expected effect, and avoid improper dosage, abnormal reaction, or poor product quality.

Repeat, the utensils after use should be washed in time. If the residue is retained, it may affect the next use, or cause corrosion of the utensils. The waste liquid of washing should not be dumped at will. It should be properly disposed of in accordance with environmental protection regulations to avoid polluting the environment.

In summary, the use of bis (8-hydroxyquinoline) sulfate should not be ignored for safety, preservation, operation, and aftercare, so as to ensure smooth use and avoid danger and future problems.