CAIROX® CR Potassium Permanganate Tablets

Eliminating hydrogen sulfide odors at remote sites, lift stations, and manholes is a challenge. CAIROX® CR potassium permanganate tablets are designed to treat odors in municipal wastewater where feed equipment is not practical.  The CR (Controlled Release) technology is fast to react with hydrogen sulfide (think seconds) and other organic odor-producing compounds, making it an excellent choice when retention times are short. These tablets are a passive, safe, and easy to use treatment that is deployed in polyester mesh bags for rapid and long-lasting oxidation of hydrogen sulfide in wastewater lift stations or gravity interceptors.

Benefits of CAIROX CR Potassium Permanganate Tablets include:

  • Effective for hydrogen sulfide, mercaptans, and other odor compounds
  • Prevents sulfide-based corrosion
  • Passive treatment option for remote locations that lack adequate utilities
  • Simple to feed, no pumps or mechanical equipment needed
  • Long lasting (typically 1 – 2 weeks for a bag of tablets), requires less manpower
  • Eliminates health risks associated with hydrogen sulfide exposure

For more information:

View the webinar on CR Tablets

View the recent case study

70-80% KMnO4


Formula KMnO4
Formula Weight 158.0 g/mol
Form Solid Tablet
Bulk Density  Approximately 100 lb/ft3

Decomposition may start at 150 °C / 302 °F