Potassium hydrogen persulfate, with its peroxide bond attached to the sulfur atom, shares similarities with peracetic acid. As an inorganic acidic oxidant, its disinfection efficacy comes from the persulfate ion, which can effectively oxidize the protein of microorganisms, thereby achieving bactericidal effect. It is worth noting that although potassium monopersulfate is a neutral salt, the acidity of its aqueous solution does not originate from itself, but from the release of hydrogen ions after the dissolution of potassium monopersulfate in the composite salt. In addition, potassium persulfate exhibits excellent stability in acidic environments, far superior to neutral conditions, but rapidly decomposes in alkaline environments.

The potassium hydrogen persulfate composite salt after compounding is a disinfectant made of sodium chloride, organic acids, and potassium hydrogen persulfate. In aqueous solution, this disinfectant can fully utilize the unique oxidation ability of potassium monopersulfate, trigger a chain reaction, and continuously produce new ecological oxygen, hypochlorous acid, free hydroxyl groups, and hydrogen peroxide. These active ingredients can alter the permeability of the cell membrane, causing it to rupture and thereby destroy the protective layer of microorganisms, achieving the effect of killing bacteria, fungi, protozoa, and viruses.