Sodium hypochlorite (NaOCL) solution typically contains what percentage of available chlorine?

Sodium hypochlorite solutions are commonly used for disinfection and water treatment, and they typically contain a concentration of available chlorine that varies depending on the formulation and intended use. The correct range for sodium hypochlorite solutions is indeed 5 to 20%.

This concentration level allows for the effective killing of bacteria, viruses, and other pathogens in water, making it a popular choice in water treatment facilities. While higher concentrations exist, such as those in industrial cleaning products, most formulations used for water treatment remain within the lower range to ensure ease of handling and safety for both operators and consumers.

Thus, understanding that sodium hypochlorite is mainly employed in concentrations of 5 to 20% is critical for effective application in water distribution systems while prioritizing safety and efficacy.