Benzalkonium chloride poisoning of domestic pets has been recognised as a result of direct contact with surfaces cleaned with disinfectants using benzalkonium chloride as an active ingredient. However benzalkonium chloride has been associated with adverse effects when used in some pharmaceutical formulations. Youd have to charge for the whole bottle of weedkiller even if you dont use it all, as with hypo once it’s been opened it only has a certain shelf life. aeruginosa are less permeable to QACs than non-sporulating, non-mycobacterial Gram-positive organisms.

Benzalkonium chloride is a quaternary ammonium compound used in pharmaceutical formulations as an antimicrobial preservative in applications similar to other cationic surfactants. An advantage of benzalkonium chloride, not shared by ethanol-based antiseptics or hydrogen peroxide antiseptic, is that it does not cause a burning sensation when applied to broken skin. Further studies supports the idea of lipid content determining BAC (im)permeability, as species with high lipid content like Mycobacterium tuberculosis were found to be less antiseptic sensitive than Mycobacterium phlei with lower lipid content. These surface structures also lack effective permeability properties and allow uptake of more BACs and other antimicrobial substances.

BAC50 is a rapid acting biocide for protection against algae, yeast, bacterial and fungal growth in the wet state.

Note that the moss turned a light brown colour when it died, but still remained embedded in the asphalt. BAC's hydrophilic cationic region destabilizes the pathogen's surface by forming electrostatic interactions with negatively charged components. The use of appropriate supporting excipients can also greatly improve efficacy and detergency, and prevent deactivation under use conditions. The 50% solution is purely aqueous, while more concentrated solutions require incorporation of rheology modifiers (alcohols, polyethylene glycols, etc.However, in reference to the FDA rule, the CDC states that it does not have a recommended alternative to ethanol or isopropanol as active ingredients, and adds that "available evidence indicates benzalkonium chloride has less reliable activity against certain bacteria and viruses than either of the alcohols.