Chemistry Question: What is Kathon CG Preservative?

Chemistry Question: What is Kathon CG Preservative?

In the chemical industry, preservatives are important additives that protect materials and products from microorganisms. Among them, Kathon CG is a highly effective preservative widely used in water-based systems, especially in the fields of coatings, adhesives, inks and water treatment. This article will analyze the composition, mechanism, application field and advantages of Kathon CG preservative in detail from many aspects.

1. what is Kathon CG Preservative?

Kathon CG is a broad-spectrum preservative used to prevent contamination of aqueous systems by bacteria, fungi and algae. Its chemical name is 1,2-dibromo-2,4-dichloro -1H-5, 5-dimethyl-2, 4-dihydropyrimidine, which is a heterocyclic compound containing chlorine and bromine. Due to its high bactericidal properties and low toxicity, Kathon CG is widely used in various industrial fields.

2. Kathon CG Preservative: Main Ingredients and Mechanism

The main component of Kathon CG preservatives is a complex of quaternary ammonium salts and zinc salts. Quaternary ammonium salt is a kind of cationic surfactant, which can interact with microbial cell membrane through electrostatic attraction, destroy the integrity of cell membrane, and inhibit the growth of microorganisms. Zinc salts further enhance the preservative effect by reacting with the metabolic enzymes of bacteria and fungi. Kathon CG also has a certain slow-release properties, which can slowly release the active ingredients in water and provide long-term corrosion protection.

3. Kathon CG Preservative Benefits

1. broad-spectrum bactericidal performance Kathon CG is effective in inhibiting the growth of a variety of microorganisms, including bacteria, fungi and algae. It has a wide bactericidal spectrum and is suitable for different types of aqueous systems.

2. Low toxicity and low irritation Compared with traditional preservatives, Kathon CG has lower toxicity and irritation, can be used under relatively safe conditions, and reduces the impact on operators and the environment.

3. Good thermal and chemical stability Kathon CG has good stability in high temperature and chemical environment, and can maintain effective corrosion resistance in a wide range of pH.

4. High cost performance Due to the sustained release performance and long protection period of Kathon CG, it has a high cost performance and is suitable for large-scale industrial applications.

4. Kathon CG preservative main application areas

1. Coating industry In water-based coatings, Kathon CG is widely used to prevent bacterial and fungal contamination of emulsions, extend the shelf life of coatings, and improve the durability of coatings.

2. Inks and adhesives Kathon CG can effectively inhibit the growth of microorganisms in inks and adhesives, prevent product deterioration, and reduce corrosion of equipment.

3. Water treatment industry In water treatment systems, Kathon CG is often used to prevent microbial contamination in cooling water and circulating water, reduce biofilm formation, and improve water treatment efficiency.

4. Industrial cleaning agent Kathon CG is also used in industrial cleaning agents to prevent the growth of microorganisms in the cleaning solution and extend the service life of the cleaning solution.

5. Kathon CG preservative use method

Kathon CG is usually supplied in liquid or solid form and is diluted or formulated for use according to specific application requirements. It is generally recommended to add 0.05-0.2 Kathon CG solution to the aqueous system to achieve an effective preservative effect. During use, care should be taken to avoid mixing with other reducing substances to avoid affecting its performance.

6. Kathon CG Preservative for Environmental Protection

With the increasingly stringent environmental regulations, the environmental protection of preservatives has become an important consideration. Kathon CG is a kind of preservative with low toxicity, which has good degradation performance and little impact on the environment. The slow-release properties of Kathon CG also reduce the long-term impact on the environment, in line with the development trend of green chemistry.

7. summary

As an efficient and broad-spectrum preservative, Kathon CG has become an important additive in the chemical industry due to its excellent bactericidal performance, low toxicity and good stability. With the continuous progress of industrial technology, the application field and technical performance of Kathon CG will be further improved, providing more efficient anti-corrosion solutions for various industries. If you are interested in Kathon CG preservatives, or need to know more about preservatives, please feel free to follow our follow-up articles.