An Oxygen Scavenger is a chemical substance that is used to reduce or completely remove oxygen in fluids and enclosed spaces to prevent oxygen-induced corrosion.
It is also known as an oxygen absorber. It is used as a corrosion inhibitor in various industry. Oxygen scavengers are categorized as organic or inorganic.
Oxygen Scavengers are chemicals very often added to the deaerated boiler feedwater to remove any last traces of oxygen that were not removed by the deaerator.
Oxygen related metallic corrosion is a significant issue in the operation and maintenance of industrial boiler systems and steam raising plant.