QAC (Quaternary Ammonium Chloride) is a highly effective broad-spectrum antimicrobial and disinfectant widely used in water treatment, cooling tower systems, hospitals, and industrial sanitation applications. It is known for its high purity, strong biocidal properties, and long-lasting effectiveness against a wide range of microorganisms.
This quaternary ammonium compound (typically available in 35%–80% w/w concentration) is particularly effective against bacteria, algae, fungi, and biofilm-forming microorganisms such as Leuconostoc mesenteroides. It is extensively used as a cooling tower biocide, helping to control microbial growth, slime formation, and fouling in recirculating water systems.
QAC-based disinfectants function through a cationic (positively charged) mechanism. Microbial cells typically carry a negative charge; when treated with QAC, the interaction disrupts the cell membrane integrity, leading to leakage of cellular contents and eventual cell death. This makes QAC highly efficient for surface disinfection, water sanitization, and hygiene control.
Applications:
Used in cooling water treatment, hospital disinfectants,
food processing sanitation, textile industry,
pharmaceutical manufacturing, and general industrial cleaning
for effective microbial control.