Potassium Persulfate has important applications in chemical analysis and laboratory fields. It is a strong oxidant and is often used as an oxidant and analytical reagent. In potassium permanganate titration, Potassium Persulfate can be used to oxidize iodide ions; in iodine titration, it can oxidize sodium sulfite. In addition, it can precipitate sulfides to help separate and analyze heavy metal ions. In the film processing process in the laboratory, Potassium Persulfate can be used as a remover of sodium thiosulfate to remove residual fixer.

In chemical production, Potassium Persulfate is an important polymerization initiator. It is widely used in the emulsion polymerization of monomers such as vinyl acetate, acrylates, acrylonitrile, styrene and vinyl chloride. In addition, Potassium Persulfate is also a common initiator for emulsion polymerization in the synthetic resin and synthetic rubber industries, such as in the synthesis of styrene-butadiene rubber. It is also used as an intermediate in the electrolytic preparation of hydrogen peroxide, further expanding its application range in the chemical industry.

In the field of water treatment, Potassium Persulfate is the core agent of advanced oxidation technology (AOPs) and is widely used in groundwater remediation and industrial wastewater treatment. The sulfate radicals (SO₄⁻·) produced after activation can effectively degrade difficult-to-decompose pollutants such as benzene series and chlorinated hydrocarbons. For example, in the treatment of oily wastewater, the COD removal rate can exceed 85% when combined with Fe²+, and the product after the reaction is mainly sulfate, which will not cause secondary pollution.

In the agricultural field, Potassium Persulfate is mainly used for soil improvement and disinfection. It can effectively treat bacteria, fungi and viruses in the soil to prevent the spread of diseases. In addition, Potassium Persulfate can also promote the humification of organic solid waste. For example, in the process of chicken manure and straw composting, adding an appropriate amount of Potassium Persulfate can significantly increase the content and polymerization degree of humus and improve soil structure.

Potassium Persulfate plays an important role in many fields due to its strong oxidizing and multifunctional properties. With the enhancement of environmental awareness and the diversification of industrial applications, its market demand is expected to continue to grow. However, during use, attention should be paid to its strong oxidizing and safety, avoid contact with organic matter and flammable materials, and take appropriate protective measures to ensure safe use.

Compared with similar oxidants, Potassium Persulfate’s core competitiveness is reflected in the perfect balance between oxidation efficiency and stability. Its standard oxidation potential is 13% higher than hydrogen peroxide (+1.78V) and slightly lower than ozone (+2.07V), but its solid-state properties make it easier to transport and store. Actual application data show that in the comparative experiment of degrading carbon tetrachloride, the mineralization efficiency of this compound is 1.7 times that of Fenton’s reagent, while the cost of the reagent is only one-third of that of the ozone oxidation method.

Environmental friendliness is another outstanding advantage of Potassium Persulfate. The decomposition products are mainly inorganic salts such as potassium sulfate and potassium hydrogen sulfate, which meet the EU REACH regulations on persistent pollutants. In soil remediation projects, the residual sulfate ions can be used as plant nutrients, avoiding the possible ecotoxicity caused by the decomposition of hydrogen peroxide to produce hydroxyl radicals.

The wide pH adaptability range (2-11) gives it excellent process compatibility. Comparative experiments show that in alkaline wastewater with pH = 9, the pollutant removal rate of the Potassium Persulfate/ultraviolet light system can still maintain 78%, while the efficiency of similar sodium persulfate systems has dropped below 50%. This characteristic makes it more adaptable in complex water treatment.

From the perspective of economic benefits, Potassium Persulfate has the comprehensive advantages of both use cost and safety cost. The price per ton of industrial-grade products is about 12,000-15,000 yuan, and the unit treatment cost is 40-60% lower than that of the ozone method. In terms of storage, there is no need to equip high-pressure containers like liquid oxygen, and the cost of warehouse construction can be saved by more than 30%.

Technological innovation continues to expand its application boundaries. The Potassium Persulfate slow-release technology developed in recent years achieves 72 hours of continuous release by embedding in porous materials, shortening the groundwater remediation project cycle by 50%. In the field of new energy, the scientific research team is exploring its possibility as an oxidation medium for lithium-air batteries, and the initial experiment has achieved a stability record of 800 cycles.

The strong oxidizing property, environmental compatibility and economical performance of Potassium Persulfate make it continue to gain market favor in the context of stricter environmental standards. Industry forecasts show that its annual demand growth rate in the Asia-Pacific region will remain at 8-12% in the next five years, especially in high-end fields such as semiconductor manufacturing and hazardous waste treatment, where technological iteration will give rise to more innovative application models.