Potassium peroxymonosulfate

Potassium peroxymonosulfate (CAS 37222-66-5), also known as potassium caroate or KMPS, is an active oxygen-releasing compound supplied commercially as a triple salt.

Where is Potassium peroxymonosulfate used?

• Water treatment: shock oxidizer for swimming pools and aquaculture systems, breaking down organic contaminants
• Biofilm control without raising chlorine levels
• Personal care: active oxidant in hair color activators and denture cleaning tablets
• Pulp and paper: bleaching and brightness retention in chlorine-free processing lines
• Textile and leather finishing: pre-treatment oxidant to improve dye uptake and surface uniformity
• It functions as a non-chlorine oxidizer in disinfection, bleaching, and surface activation.

Commercial specifications

• Active oxygen content typically around 4.5%
• Industrial and specialty formulation grades for personal care and water treatment