atmospheric-corrosion-inhibition
Some organic compounds with low vapor pressures of about 10-2 to 10-7 mmHg evaporate in a closed space and become liquid on the surface to be protected. These inhibitors increase the corrosion resistance of the metal in corrosive environments. Vapor phase inhibitors are particularly useful for preventing atmospheric corrosion. Atmospheric corrosion results from the single or combined action of moisture, oxygen, and atmospheric pollutants such as SO2, NO2, as well as rain, snow, dust, soot, ash, wind, and radiation.