Corrosion inhibitors function primarily by:

Corrosion inhibitors are substances that are introduced into water systems to prevent or reduce corrosion, which is the deterioration of materials due to chemical reactions, primarily involving metal surfaces. The primary function of corrosion inhibitors is to form a protective coating on metal surfaces. This layer acts as a barrier between the metal and the corrosive environment, significantly reducing the rate at which corrosion occurs.

When a corrosion inhibitor forms a protective coating, it can prevent direct contact between the metal and corrosive agents, such as oxygen and electrolytes in the water. This coating can be passive and, in some cases, can also involve the formation of a more complex chemical interaction that strengthens the barrier against corrosion.

Additionally, while certain inhibitors can help manage factors such as oxygen levels or temperature in some indirect ways, their primary role remains the physical or chemical coating of metal surfaces to mitigate corrosion. This understanding underscores the vital importance of using corrosion inhibitors in maintaining the integrity and lifespan of piping systems and related infrastructure in water treatment and distribution systems.