zinc bis(pyridine-2-thiolate 1-oxide)

Zinc bis (pyridine-2-mercaptan 1-oxide), often used as zinc pyrithione, its main uses are as follows:
One is used as an anti-dandruff agent in personal care products. Dandruff is formed by the excessive reproduction of Malassezia resulting in abnormal proliferation and shedding of scalp keratinocytes. Zinc bis (pyridine-2-mercaptan 1-oxide) can inhibit the growth of the bacteria, and can also regulate the keratinization process, allowing keratinocytes to shed normally and reducing dandruff. Many anti-dandruff shampoos contain this ingredient, which can effectively clean scalp oil and maintain the microecological balance of the scalp. Long-term use can significantly reduce dandruff and make hair refreshing.
Two is used as an antibacterial and antifungal agent in the field of Due to its good antibacterial properties, it can inhibit the growth of bacteria, molds and other microorganisms on the surface of the paint. Building interior and exterior wall coatings and industrial coatings are susceptible to microbial erosion in the environment to cause the coating to change color, pulverize and fall off. Adding it can prolong the service life of the paint, maintain the appearance and protective function of the coating, and is widely used in coatings used in humid and hot environments.
Third, it is used as a fungicide in agriculture. It can prevent and control a variety of crop fungal diseases, such as wheat rust, rice blast, fruit and vegetable powdery mildew, etc. By inhibiting the growth and reproduction of fungi, the incidence and severity of diseases can be reduced, the healthy growth of crops can be guaranteed, and the yield and quality can be improved. Relatively friendly to the environment, it plays an important role in green

Zinc bis (pyridine-2-mercaptan 1-oxide), often referred to as zinc pyrithione, is common in many daily and industrial products. Although it is not contained in Tiangong Kaiwu, it is described in ancient Chinese, which can also explain its application.
In daily chemicals, this substance is mostly found in shampoo products. Gaiyin zinc bis (pyridine-2-mercaptan 1-oxide) has excellent antifungal effect and can effectively inhibit the growth of microorganisms such as Malassezia. This bacteria often cause itchy scalp and increased dandruff. Shampoo contains it, which can penetrate deep into the hair roots, regulate the microbial community of the scalp, restore the scalp to health, and reduce dandruff.
Furthermore, in the field of coatings, zinc bis (pyridine-2-thioxide 1-oxide) is also used. When used in coatings, it can give the coating good antibacterial and mildew-proof properties. In humid environments, the coating is prone to mold formation, causing it to change color and fall off, affecting the appearance and protective properties. After adding this substance, it can effectively inhibit the growth of mold, prolong the service life of the coating, and ensure that the surface of the object remains in good condition for a long time.
It is also seen in the treatment of fabrics. The fabric treated with a solution containing zinc bis (pyridine-2-mercaptan 1-oxide) can obtain antibacterial and deodorant functions. After the human body sweats, the fabric is prone to odor due to the action of microorganisms. After treatment, the growth of microorganisms is inhibited, the odor of the fabric is reduced, and the wearing comfort is also significantly improved.
It can be seen that zinc bis (pyridine-2-mercaptan 1-oxide) is not ancient, but its application in ancient times can also be known that it has important value in today's shampoo, paint, fabric and other products, bringing many conveniences and quality improvements to people's lives.

Zinc bis (pyridine-2-mercaptan 1-oxide), often called zinc pyrithione, in the era of "Tiangong Kaiwu", there is no such thing, this is a later chemical synthesis product. However, in ancient Chinese, or can be deduced from its characteristics.
This substance has a specific solubility. In common organic solvents, such as alcohols, or slightly soluble state. Alcohols, mild in nature, have a certain polarity, and have a partial structure or affinity with zinc pyrithione, so they can dissolve a small amount. Looking at its molecular structure, it contains sulfur, nitrogen heterocycles and metal zinc ions. This structure makes the molecule both polar and hydrophobic. In water, its metal ions can interact weakly with water molecules, but the hydrophobic part hinders complete dissolution, so it is only slightly soluble in water.
And in some polar organic solvents such as acetone, because of the moderate polarity of acetone, it can interact with zinc pyrithione, destroying its lattice energy and making it more soluble. However, in non-polar organic solvents, such as alkanes, because of their large structural differences with zinc pyrithione, there is no interaction force, so it is difficult to dissolve.
The difference in solubility is due to the matching of its own structure and solvent properties. From an ancient perspective, although there is no accurate chemical analysis, it can be known that substances vary according to their properties and have different solubility states in different media. This is all good for creation.

Zinc bis (pyridine-2-mercaptan 1-oxide) is also a compound. Its physical properties are well-researched.
Looking at its morphology, at room temperature, it often takes the shape of a solid state, which is due to the intermolecular force. In the molecular structure, zinc ions are closely connected with pyridine-2-mercaptan 1-oxide ligands to form a stable structure, causing it to exist in a solid state in common temperature environments.
As for the color, it is mostly white or off-white. The appearance of this color is related to the absorption and reflection characteristics of light by molecules. The electron cloud distribution of its molecular structure allows light of a specific wavelength to be absorbed or reflected, so it appears this common color.
When it comes to solubility, in water, its solubility is quite limited. This is because the molecular polarity of the compound does not match the polarity of the water molecule. Some groups in its molecular structure are hydrophobic, making it difficult to dissolve in polar water. However, in organic solvents, such as some alcohols and ketones, its solubility is slightly better. The molecular structure and polarity characteristics of organic solvents are more suitable for interaction with the molecules of the compound, so they are soluble.
When it comes to melting point, this compound has a specific melting point value. The level of melting point is closely related to the strength of the intermolecular force. Intermolecular interactions, such as hydrogen bonds and van der Waals forces, jointly maintain the aggregation state of the molecule. When the external temperature rises to the melting point, the energy obtained by the molecule is sufficient to overcome these forces, and the compound then changes from a solid state to a liquid state.
In addition, its density is also an important physical property. The density depends on the mass of the molecule and the degree of intermolecular packing. The molecular structure of the compound and the mass of the constituent atoms together determine the value of its density.
The physical properties of zinc bis (pyridine-2-thioxides-1-oxides) are dominated by its molecular structure and intermolecular interactions. Each property is interrelated and affects its existence and behavior in different environments.

Zinc pyrithione (zinc bis (pyridine-2-thiolate 1-oxide), often referred to as zinc pyrithione, is a model of chemical synthesis due to its delicate and complex preparation process.
To prepare zinc pyrithione, take pyrithione-2-mercaptan as the initial raw material. In a suitable reactor, mix alkali solution such as sodium hydroxide solution with it to convert pyrithione-2-mercaptan into the corresponding sodium salt. This process requires precise temperature control, generally maintained at 20 to 30 degrees Celsius, because too high or too low temperature can cause abnormal reaction rate and affect product purity. < Br >
When the sodium salt is complete, slowly add a zinc salt solution, such as zinc sulfate solution. In this step, the pH value of the reaction system is very important, and the pH value needs to be stabilized between 6.5 and 7.5 with acid-base regulators. Zinc ions and sodium pyridine-2-mercaptan are coordinated to gradually form zinc pyrithione. During this reaction process, continuous stirring is required to promote full contact of the reactants and improve the reaction efficiency.
After the reaction is completed, the product is mixed with impurities, which must be separated and purified. The commonly used method is filtration to remove unreacted solid impurities. Then it is extracted with an organic solvent, using the solubility characteristics of zinc pyrithione in a specific organic solvent to separate it from other impurities. After extraction, the organic solvent is removed by distillation to obtain the preliminary purified zinc pyrithione.
However, the purity of this product has not yet reached the industrial standard, and it needs to be further purified by recrystallization. Select a suitable solvent, such as a mixed solvent of ethanol and water, dissolve the preliminary purified product, heat it to near the boiling point of the solvent, and completely dissolve the solid. Then, slowly cool down to allow zinc pyrithione to crystallize. After multiple recrystallization, the purity of the product can be greatly improved, reaching the high standard required for industrial applications.
Preparation of zinc pyrithione requires fine control of every step from raw material selection to final product purification in order to obtain high-quality products and play an important role in many fields.