From a molecular structure perspective, potassium monopersulfate is extremely similar to peracetic acid, with peroxide bonds attached to sulfur and carbon atoms respectively. Potassium monopersulfate is an inorganic substance, and its disinfectant active ingredient is monopersulfate ions, which can oxidize microbial proteins and cause microbial death. Potassium monopersulfate is a neutral salt, and the acidity of its aqueous solution is caused by the dissolution of potassium monopersulfate in the composite salt, which produces hydrogen ions.

However, potassium hydrogen persulfate has much better stability under acidic conditions than under neutral conditions, and will rapidly decompose under alkaline conditions. The compounded potassium hydrogen persulfate composite salt is a disinfectant made from sodium chloride, organic acids, and potassium hydrogen persulfate. In aqueous solution, the special oxidation ability of potassium hydrogen persulfate is utilized to undergo a chain reaction in water, continuously producing new ecological oxygen, hypochlorous acid, and free hydroxyl groups, all of which can simultaneously kill microorganisms. Therefore, the dissolution of potassium hydrogen persulfate composite salt achieves a maximum synergistic bactericidal effect. Therefore, compared with other components of disinfectants, the bactericidal effect of potassium hydrogen persulfate composite salt is better.

At the same time, the chloride released after killing and sterilizing organisms will be oxidized by the activity of potassium monopersulfate to hypochlorous acid and free hydroxyl groups, which will have a long-lasting effect. So potassium hydrogen persulfate composite salt has the characteristics of broad-spectrum, rapid, long-lasting, and safe disinfection function.