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Potassium Monopersulfate (KMPS)



Potassium monopersulfate (KMPS) is a highly active oxidant that is very effective at disinfecting swimming pools and lagoons. Its oxidation potential exceeds even that of hydrogen peroxide and ozone.

It is an odourless white powder that dissolves easily in water, sanitizing and improving water clarity without the carcinogenic trihalomethanes (THMs) that chlorine produces.

Potassium monopersulfate is ANSI60 certified for drinking water applications. Information about other applications and dosing rate is in the KMPS User Manual.

We sell KMPS as a powder in 1 kg, 5 kg and 20 kg containers. If you wish to purchase our products in a larger container or require our product’s MSDS, please contact us.

Additional information


1 kg jar, 5 kg pail

Dosing Rate

- As an oxidant for drinking water, the maximum allowed concentration of KMPS is 25 mg/L.
- For swimming pools, the recommended concentration of KMPS for shock oxidation is around 18 g per cubic metre.
- For oxidation and disinfection of spas and lagoons, the recommended concentration of KMPS is a maximum of 30 mg/L.


- KMPS has a wide range of applications from shock oxidation/disinfection of wastewater lagoons prior to discharge, shock oxidation of swimming pools, and rapid sanitation of water reservoirs (dugouts) for small communities.
- KMPS can be used with sodium or calcium hypochlorite.
- KMPS does not bleach surfaces.


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Osorno Enterprises Inc.
976 Elgin Avenue
Winnipeg MB R3E 1B4
+1 204 488-1538 (Phone)
+1 204 488-1566 (Fax)
Regular Hours of Operation
We are closed on December 24 - 28, 2020 and
December 31, 2020 - January 4, 2021
Monday - Friday: 9:00 - 17:00
Saturday - Sunday: Closed

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