What percentage of available chlorine is found in sodium hypochlorite?

Sodium hypochlorite, commonly used as a disinfectant and bleaching agent, typically contains a concentration of available chlorine that ranges from 10% to 15%. This range is recognized because it is the effective strength of sodium hypochlorite solution, which means it can effectively oxidize and disinfect various pathogens in water. The presence of this concentration allows for effective water treatment processes, including chlorination for disinfection purposes.

Alternative answers don't match the standards for sodium hypochlorite concentration found in practice. Lower percentages would not provide sufficient disinfection capacity, while higher percentages would generally reflect products that are not typical for water treatment but might instead be used for industrial purposes rather than direct application in drinking water systems. Therefore, the range of 10 to 15% accurately reflects the typical available chlorine level in sodium hypochlorite solutions used in water treatment.