Skip to content
Select Chemical
sodium chloride molecule

Sodium Chloride

Also known as:

  • Salt
  • Seawater or brine
The Science

Why CPVC Works Well With Sodium Chloride

All plastics are inherently resistant to all salts because floating ions pass directly over plastic materials without the negative effects metals will experience. High-quality CPVC like Corzan® CPVC is suitable for use at much higher temperatures than other plastics and lower-quality CPVC in industrial applications including food processing and plastic-making. 

Temperature & Concentration

Corzan CPVC's Resistance to Sodium Chloride

Brine is a high-concentration solution of salt (NaCl) in water (H2O). In diverse contexts, brine may refer to the salt solutions ranging from about 3.5% (a typical concentration of seawater, on the lower end of that of solutions used for brining foods) up to about 26% (a typical saturated solution, depending on temperature)*.

* 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 Sodium Chloride

Salt is among the most common chemicals that Corzan CPVC reliably handles in industrial applications. Any material will react in different ways according to concentration levels, temperatures, pressures and nature of the material. But engineers choose Corzan CPVC for salt and brine due to its performance capabilities compared to metals and other plastics.

Corzan CPVC is also a preferred material for costal and saltwater environments. Costal, offshore, and marine locations have increased corrosion challenges and using a non-reactive material can extend the lifespan of an installation. 

Metals: Sodium chloride, especially when dissolved in water, is extremely corrosive to metals. The electrolyte solution created promotes the flow of electrons from one electrode to another, meaning pipe atoms break free of the pipe wall and attach to free-floating ions within the fluid, weakening the material and introducing potentially dangerous fragments (like iron or lead) into the fluid flowing through the pipe. To lessen the effect of corrosion, plants insisting on metallic piping must alter their process or specify an expensive, more corrosion-resistant alloy. No change to process or materials or addition of chemicals can eliminate metallic corrosion of metals by sodium chloride.

Plastics: Plastics are inert to salts, which means floating ions pass right over the material without any negative effects. All plastics are inherently resistant to all salts. However, CPVC’s ability to work at higher temperatures and pressures than cheaper plastics, such as PVC allow for a wider range of industrial and water treatment uses.

Common Uses

Common Uses of Sodium Chloride

  • Feedstock for further chemical synthesis in industrial processes
  • Part of industrial plastic-making
  • Food preservation and production cooking
  • Water treatment and desalination processes

Have Questions About Sodium Chloride and Corzan® CPVC?

Fill out the form to learn more.

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.