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chlorine dioxide molecule
ClO2

Chlorine Dioxide

Also known as:

  • Chlorine (IV) oxide (uncommon)
The Science

Why CPVC Works Well With Chlorine Dioxide

High-quality CPVC like Corzan® CPVC has a high level of chlorine on the polymer chain. This protects the CPVC from the degrading effects of highly corrosive chemicals commonly used by industrial plants for everything from disinfection to the manufacture of other important industrial chemicals. Corzan CPVC has excellent resistance to chlorine dioxide due to its superior engineering and formulation.

When used with chlorine dioxide CPVC resists material degradation and corrosion far better than metals. The severity of both general degradation and localized stress cracking will be dependent on temperature, pressure, concentrations, strain applied to the material, as well as manufacturing quality, fabrication quality and the quality of the CPVC compound. Corzan CPVC will reliably handle chlorine dioxide environments because of its proprietary formulation and superb manufacturing partners.

Extensive exposure to chlorine dioxide will have little to no effect or corrosion on CPVC piping.

Temperature & Concentration

Corzan CPVC's Resistance to Chlorine Dioxide

Corzan CPVC is a reliable piping choice for chlorine dioxide conveyance in water treatment facilities. It is similarly useful in the pulp and paper industry for bleaching purposes. Corzan CPVC’s superior compound and quality assurance make it the premier CPVC material, delivering excellent resistance to chlorine dioxide in industrial applications like drinking water disinfection, Legionella disinfection and more*.

* Corzan® Material and Piping Solutions only partners with manufacturers with a proven track record of quality and reliability. These manufacturers are carefully chosen to convert Corzan CPVC into the high-performance piping systems, ducting, sheets and lining and more that customers rely on. Always confirm any planned application is in compliance with our partner’s design guidelines.

Drawbacks of Other Materials

The Drawbacks of Other Materials Handling Chlorine Dioxide

Chlorine dioxide is among the most common chemicals that Corzan CPVC reliably handles in industrial applications. Engineers choose Corzan CPVC for handling chlorine dioxide due to its performance capabilities compared to metals and other plastics.

Metals: Chlorine dioxide corrodes copper and steel piping, reducing reliable performance and increasing risk of failure.

PEX (Cross-linked polyethylene) and PP-R (polypropylene random copolymer): Both PEX and PP-R are prone to brittleness and cracking and degradation when used with chlorine dioxide. This process hastens under higher pressures and temperatures. Most PP-R manufacturers do not recommend use of chlorine dioxide in PP-R without their prior approval.

Common Uses

Common Uses of Chlorine Dioxide

  • Drinking water disinfection
  • Bleaching wood pulp
  • Water treatment in oil and gas industry
  • Food industry disinfectant
  • Cooling tower microbiological control
  • Cleaning electronic circuit boards
  • Medical and laboratory equipment sterilization
  • Legionella and other water born pathogen disinfection
  • Textile bleaching
  • Biofilm removal

Have Questions About Chlorine Dioxide and Corzan® CPVC?

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Explore More Chemicals

For long-term system reliability, it is critical to choose a material that resists corrosion. Corzan CPVC effectively stands up to most acids, bases and salts and is innately resistant to corrosive chemicals, including the 10 commonly used chemicals that can degrade and reduce the service life of many metals.
NaClO Sodium Hypochlorite
H2SO4 Sulfuric Acid
HCl Hydrochloric Acid
NaOH Sodium Hydroxide
NaCl Sodium Chloride
H3PO4 Phosphoric Acid
ClO2 Chlorine Dioxide
HNO3 Nitric Acid
H2O2 Hydrogen Peroxide
H2O Water