Peroxymonosulfuric Acid

Dipotassium peroxymonosulfate (CAS 10361-76-9), also known as potassium peroxymonosulfate or K2SO5, is the potassium salt form of peroxymonosulfuric acid used commercially as a non-chlorine oxidizing agent.

It delivers strong oxidation, bleaching, and biocidal action across water treatment, personal care, and industrial processing applications. In water treatment, it serves as a shock oxidizer for swimming pools and aquaculture systems.

The compound eliminates organic contaminants and pathogens without chlorine interference. Personal care formulators incorporate it into hair bleaching and color-preparation products, where controlled oxidation lifts pigment effectively.

This process occurs without the harshness associated with peroxide-only systems. Pulp and paper producers use it for bleaching cellulose fiber, achieving target brightness levels while limiting fiber degradation.

In textile and leather processing, it functions as a pre-treatment oxidant that prepares substrates for dyeing. It works by removing residual organic matter and improving dye uptake uniformity across the material.

Dipotassium peroxymonosulfate is supplied as a white granular or powder solid, typically as a triple-salt compound blended with potassium bisulfate and potassium sulfate for stability.

Standard commercial grades are available at active oxygen concentrations of approximately 4.5–5%. Technical and pool-treatment grades are the most common market specifications for industrial buyers.

Packaging ranges from small retail units to bulk industrial quantities depending on end-use sector requirements. This versatile chemical remains a staple for high-performance oxidation in diverse manufacturing sectors.