Benzalkonium Chloride 50% — Bactericide

Benzalkonium Chloride (BKC) 50% is a concentrated aqueous solution of benzalkonium chloride, a quaternary ammonium compound widely used as a bactericide and disinfectant.

Key Features

• Concentration: 50% active ingredient in water
• Form: Clear to slightly yellow liquid
• Antimicrobial Spectrum: Effective against a broad range of bacteria (both Gram-positive and Gram-negative), fungi, and some viruses
• Mode of Action: Disrupts microbial cell membranes causing leakage and cell death

Common Uses

• Disinfectant in healthcare, food industry, and agriculture
• Sanitizing surfaces, instruments, and equipment
• Ingredient in antiseptic formulations, hand sanitizers, and wipes
• Preservation in cosmetic and pharmaceutical products

Handling and Safety

• Irritant to skin and eyes at high concentrations
• Toxic to aquatic organisms—avoid environmental release
• Use appropriate PPE (gloves, goggles) during handling
• Dilute appropriately for safe and effective use (typically 0.05%–0.2% in final applications)

Storage

• Store in a cool, dry place away from direct sunlight and incompatible substances
• Keep container tightly closed when not in use