#Research & Development
How does chlorine dioxide work?
Konax
Chlorine dioxide (ClO₂) is a disinfectant that kills bacteria, spores, viruses, fungi, yeasts, and algae through oxidation. It changes the permeability of the outer cell membrane of microorganisms, allowing it to pass through their protective layer. Once inside these membranes, chlorine dioxide reacts with the amino acids in the cell cytoplasm, thereby killing the organism.
Chlorine dioxide is a very selective oxidant. Other oxidants, such as chlorine and ozone, react with most organic compounds. Chlorine dioxide, however, only reacts with weaker organic compounds and is therefore not quickly consumed. This results in much lower doses of chlorine dioxide needed to kill (oxidize) bacteria, spores, and viruses.
Thanks to its oxidizing action, chlorine dioxide also kills microorganisms when they are inactive. This reduces the risk of resistance formation.
In addition to its disinfecting properties, chlorine dioxide also has excellent cleaning capabilities. Chlorine dioxide (ClO₂) is a highly water-soluble gas, meaning that after being added to water, it remains present as a gas. By staying in gaseous form within the pipes, chlorine dioxide penetrates the biofilm (a matrix structure of attached contamination and bacteria). This way, the biofilm — the main cause of many bacterial recontaminations — is loosened and removed along with the bacteria present.