Overview
Kathon preservative is a widely used isothiazolinone-based biocide known for its effectiveness in preventing microbial growth in various industrial and consumer applications. It is a blend of 5-Chloro-2-methyl-4-isothiazolin-3-one (CMIT) and 2-Methyl-4-isothiazolin-3-one (MIT), which work synergistically to provide broad-spectrum protection against bacteria, fungi, and algae. Due to its stability across a wide pH range and compatibility with many formulations, Kathon preservative is a popular choice for water treatment, personal care products, and industrial fluids. Its ability to inhibit microbial growth at low concentrations makes it cost-effective for large-scale applications.
Physical and Chemical Properties
Kathon preservative is typically supplied as a clear to pale yellow liquid with a mild odor. It is soluble in water and most organic solvents, making it easy to incorporate into aqueous and non-aqueous systems. The density of the solution ranges from 1.02 to 1.05 g/cm³, depending on the concentration of active ingredients. The preservative is stable under normal storage conditions but may degrade when exposed to strong oxidizing or reducing agents. Its efficacy is maintained over a wide pH range (2-9), which allows it to be used in diverse formulations without losing activity.
Main Applications
Kathon preservative is extensively used in water treatment systems to control microbial growth in cooling towers, reverse osmosis membranes, and industrial water circuits. Its ability to prevent biofilm formation helps maintain system efficiency and reduce maintenance costs. In the personal care industry, it is added to shampoos, lotions, and other products to extend shelf life by inhibiting microbial contamination. Additionally, it is used in paints, adhesives, and metalworking fluids to prevent spoilage and maintain product quality during storage and use.
Safety and Storage
Kathon preservative must be handled with care due to its potential to cause skin irritation and allergic reactions. Personal protective equipment (PPE), such as gloves and goggles, should be worn when handling the chemical. In case of contact, rinse immediately with plenty of water and seek medical attention if irritation persists. Storage conditions should include a cool, dry environment away from direct sunlight. Containers must be tightly closed to prevent evaporation and contamination. Avoid mixing with incompatible substances, such as strong oxidizers or reducing agents, to prevent degradation or hazardous reactions.
B2B Procurement Guide
When procuring Kathon preservative, it is essential to verify the CAS number and purity specifications to ensure you are receiving the correct product. Request safety data sheets (SDS) from suppliers to confirm compliance with local regulations and to understand handling and disposal requirements. Consider the intended application and required concentration when selecting a product. Prices vary based on purity and supplier, with typical ranges between $10 and $30 per kilogram. Bulk purchases may offer cost savings, but ensure proper storage facilities are available to maintain product integrity.
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