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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