Which chemical is most commonly used to disinfect work surfaces?

Bleach, specifically sodium hypochlorite, is the most commonly used chemical for disinfecting work surfaces due to its effectiveness against a wide range of pathogens, including bacteria, viruses, and fungi. It works by denaturing proteins and disrupting cellular functions, which helps to eliminate germs and reduce the risk of infections in healthcare settings.

Bleach is particularly valued for its quick action and broad-spectrum efficacy, making it a preferred choice for routine cleaning and disinfection in environments where sterility is essential. Furthermore, it is relatively cost-effective and easy to use when diluted to the appropriate concentration for disinfection.

While other options such as alcohol, hydrogen peroxide, and iodine have disinfecting properties and can be effective in certain situations, they may not have the same broad-spectrum capabilities or effectiveness against specific types of pathogens as bleach. Alcohol, for instance, is excellent against bacteria and some viruses but does not perform as well against others, especially when organic matter is present. Hydrogen peroxide is also useful for disinfection but may not be as universally effective as bleach for all surface types or materials. Iodine is primarily used for skin antiseptics rather than surface disinfection.