A chemical compound that can be added to liquids or gases and used to decrease the corrosion rate of a given material (usually a metal) can be referred to as a corrosion inhibitor. One method for the inhibition of corrosion would be the addition of a coating on the surface of the metal which acts as a passivation layer and disallows access to the surface of the metal. Corrosion Inhibitors have a wide range of uses in commercial, process, and industrial environments. Some of these uses are listed below.
- Corrosion Inhibitors are used to stop rusting and anodic corrosion of metals. This is generally done via the coating of the metal surface with a chromate layer.
- Oxygen scavengers can be used as CIs to react with dissolved oxygen in the environment and can help in preventing cathodic corrosion.