Benzalkonium Chloride, with the CAS number 8001 - 54 - 5, is a type of quaternary ammonium compound. It exists as a white or yellowish - white powder, or sometimes as a thick, syrupy liquid. This product is typically sold in various concentrations, which can be customized according to different needs. The chemical formula of Benzalkonium Chloride is C₆H₅CH₂N(CH₃)₂RCl, where R represents an alkyl group.
It has good solubility in water, alcohol, and acetone. The melting point of Benzalkonium Chloride varies depending on the specific alkyl chain length, generally ranging from - 5°C to 10°C. It has a relatively high boiling point and is stable under normal storage conditions. However, it should be stored in a cool, dry place, away from direct sunlight and heat sources.
Benzalkonium Chloride has a wide range of applications in different industries:
Disinfection in Medical Settings:
For skin disinfection, a solution with a concentration of 0.1% - 0.5% can be used. First, clean the skin area with water and mild soap. Then, apply the Benzalkonium Chloride solution evenly on the skin using a cotton ball or swab and let it dry naturally. For disinfection of surgical instruments, a higher - concentration solution (usually 1% - 2%) may be required. Immerse the instruments in the solution for a certain period (usually 30 minutes - 2 hours) according to the type of instrument and the degree of contamination.
In Personal Care Products:
When formulating personal care products, the amount of Benzalkonium Chloride added should be in accordance with relevant regulations. Usually, the concentration is controlled within 0.01% - 0.1%. It should be added during the manufacturing process under appropriate temperature and stirring conditions to ensure uniform dispersion.
Food Industry Sanitization:
For food processing equipment, a 0.05% - 0.2% solution can be used. Spray or wipe the solution on the equipment surface, and then rinse thoroughly with clean water after a certain contact time (usually 5 - 10 minutes).
Hospital Disinfection Case:
A large - scale hospital in a city was facing a high incidence of hospital - acquired infections. The hospital management decided to use Benzalkonium Chloride for comprehensive disinfection. They prepared a 0.5% Benzalkonium Chloride solution to disinfect patient rooms, operating theaters, and common areas. After continuous use for a month, the incidence of hospital - acquired infections decreased significantly. The number of bacterial and fungal infections was reduced by 30%, indicating that Benzalkonium Chloride is highly effective in preventing the spread of infections in a medical environment.
Personal Care Product Case:
A well - known shampoo brand added Benzalkonium Chloride as a preservative. Before adding, the shampoo often had problems such as mold growth and unpleasant odors during long - term storage. After adding Benzalkonium Chloride at a concentration of 0.05%, the product's shelf - life was extended from 6 months to 12 months. Consumers also reported fewer problems related to product spoilage, which improved the brand's reputation and market competitiveness.
Este é o William, Diretor Executivo da Zhishang Chemical Co., Ltd.
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