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[Chemical Knowledge]：Properties and uses of fungicides

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The nature and use
of fungicides in the field of raw materials for chemical production
1. Introduction

In the production of chemical products, fungicides are a kind of important additives, mainly used to inhibit or kill harmful microorganisms in the production process, to ensure the quality of products and the smooth progress of production. In this article, the properties and uses of fungicides will be described in detail in order to better understand and apply the fungicides.

2. the nature of fungicides

1. chemical stability: fungicides need to have sufficient chemical stability, in order to maintain its effectiveness in different production environment and process conditions.
2. Broad-spectrum antibacterial properties: The ideal fungicide should have broad-spectrum antibacterial properties and can resist a variety of microorganisms, including bacteria, fungi and yeast.
3. Low toxicity: For the production of chemicals that are closely related to human health, such as food and medicine, the fungicide should have low toxicity to ensure the safety of the product.
4. Thermal stability: In the production process, the fungicide needs to withstand a certain temperature and pressure, so it needs to have good thermal stability.

3. use of fungicides

1. chemical production: in chemical production, fungicides are mainly used to prevent the growth of microorganisms, to ensure product quality and purity. For example, some emulsions, coatings, adhesives and other chemicals are easily contaminated by microorganisms during the production process. Adding an appropriate amount of fungicides can effectively prevent this problem.
2. Food and beverage industry: In food and beverage production, fungicides are used to ensure the hygienic quality and safety of products. For example, some liquid foods such as fruit juices and beverages are easily contaminated by bacteria, yeast and other microorganisms. Adding an appropriate amount of fungicides can extend the shelf life of the product.
3. Water treatment: In the process of water treatment, fungicides are used to kill microorganisms in the water to prevent corrosion and scaling caused by microorganisms. For example, biocides are often added to circulating cooling water systems to prevent the growth of microorganisms.
4. Pharmaceutical industry: In pharmaceutical production, fungicides are used to ensure the sterile state of drugs and prevent drug deterioration and contamination caused by microorganisms. At the same time, some fungicides can also be used to treat certain infectious diseases.

4. common types of fungicides

1. oxidizing fungicides: such as chlorine, ozone, etc., through the oxidation of the destruction of microbial cell structure and function, has a strong bactericidal ability.
2. Non-oxidizing fungicides: such as quaternary ammonium salts, isothiazolinone, etc., by interfering with the metabolic process of microorganisms or destroying the cell wall to play a bactericidal effect.
3. biological fungicides: such as bacteriophage, antagonistic bacteria, etc., through biological competition or parasitic action to kill or inhibit the growth of microorganisms.

5. conclusion

fungicides play an important role in the field of chemical production raw materials, which can effectively prevent product quality problems and production failures caused by microorganisms. When selecting and using fungicides, it is necessary to select the appropriate type and concentration of fungicides according to the specific production environment and process conditions to ensure its effect and safety. At the same time, we also need to pay attention to the environmental protection and sustainability of fungicides to reduce the impact on the environment.

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