A Question of Chemistry: What is Kathon CG preservative?

Kathon CG preservative, also known as Isothiazolinone, was first developed by the American company Rohm and Haas in 1972. It is an internationally recognized safe, efficient, broad-spectrum new preservative and fungicide on the premise of compliance. It is widely used in daily chemicals, coatings and other fields.

Kathon CG preservative is one of the most common additives. It has been used in chemical industries for decades since its invention in the 1970s. This article will tell readers what is Kathon CG preservative through a comprehensive introduction.

Kathon CG is a highly effective bactericide & preservative, a brown transparent liquid that can be used to preserve chemical formulas or raw materials. The chemical formula is C₈H₉ClN₂O₂S₂, which is mainly composed of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one.

The active ingredients in KATHON CG Preservative are isothiazolinones identified by the INCI names Methylchloroisothiazolinone and Methylisothiazolinone. KATHON CG Preservative is a precise formulation of active ingredients and inert salts in an aqueous solution.

Kathon CG preservative works by breaking the protein bonds of bacteria and algae. After Kathon CG comes into contact with microorganisms, it can quickly and irreversibly inhibit their growth, leading to the death of microbial cells. Therefore, it has a strong inhibitory and killing effect on common bacteria, fungi, algae, etc., and can effectively against Gram-positive and Gram-negative bacteria, yeast and mold.

Common Kathon CG preservative include: 1,2-Benzisothiazolin-3-One, 2-Methyl-4-Isothiazoline-3-one, 2-Octyl-4-isothiazolin-3-one, 5-Chloro-2-methyl-4-isothiazolin-3-one, their common characteristics are strong antibacterial ability, small application dosage, good compatibility, low toxicity, etc., and they have strong resistance to a variety of bacteria and fungi, high efficiency, good compatibility, wide pH range and can be naturally biodegraded.

Kathon CG is widely used in daily chemicals, steel smelting, oil field water injection, refineries, thermal power plants, large fertilizer plants, paper mills, light textiles, water-based coatings, industrial cleaning and other fields.

Application of Kathon CG preservative in daily chemical products

Kathon CG preservative inhibits the growth of bacteria and fungi during the production and storage process of cosmetics, personal care products, lotions, emulsions and other aqueous systems and other water-containing organic products. It is suitable for shampoo, conditioner, liquid soap, shower gel and other skin care products. It can also be used in all-purpose cleaners, floor and furniture polishes and waxes, car washes, polishes and waxes, air fresheners, wet sponges and towels.

Kathon CG preservative is effective at low concentrations and over a wide pH range and is compatible with a variety of surfactants and emulsifiers. It is approved for use worldwide. Kathon CG preservative in cosmetics does not impart color or odor and has no bioaccumulate and biodegrades rapidly. However, it should be noted that the maximum allowable concentration of Kathon CG preservative when used in cosmetics is: 0.0015%, and is calculated as a 3:1 mixture of methylchloroisothiazolinone and methylisothiazolinone.

Kathon CG preservative has the disadvantage that it has a higher allergy rate than other preservatives and is not very friendly to people with skin inflammation. So its use is restricted in some countries due to its potential to cause allergic reactions, but it is considered acceptable and safe at low concentrations in rinse-off products such as detergents. 

Kathon CG preservative in cosmetics helps inhibit bacterial growth and ensures that many daily chemical products, including cosmetics, are fresh and non-perishable. At the same time, when purchasing cosmetics, users can check whether the added amount of Kathon CG preservative complies with regulations through the ingredient list to ensure it is harmless to the skin.

Through this article, readers have learned about the chemical properties, chemical action principles, characteristics, applications, etc. of Kathon CG preservative. The most important thing is to learn more about What is Kathon CG preservative through the above information.

At the same time, the advantages of Kathon CG preservative are now widely recognized by enterprises. The scope of application and usage in the field of disinfection are expanding and rising year by year. It has broken through the traditional fields of daily chemicals, coatings and papermaking, and expanded rapidly to other industries. With the continuous optimization and innovation of product manufacturing technology, its prospects are very promising and it is considered to be a high-quality preservative & fungicide on the market.