What are the reactants in bleach?

The primary reactant in bleach, specifically sodium hypochlorite (commonly found in household bleach), is sodium hypochlorite itself (NaOCl). When bleach is used for disinfection or stain removal, it often reacts with organic substances, breaking down pigments and other compounds. In chemical reactions, bleach can also react with acids to release chlorine gas, which is a toxic substance.