Weight loss tests were performed to investigate the corrosivity of a new absorbent, 2-amino-2-methyl-1-propanol (AMP) saturated with pure CO2 and Mixture of CO2 and air on carbon steel under boiling conditions. The corrosion data were compared with those of a conventional amine, monoethanolamine (MEA), tested under the same conditions. The results indicated that corrosion rates in the AMP system were generally lower than those in the MEA system, probably due to differences in characteristics of the corrosion products in each of the absorbents. Corrosivity in the AMP system tended to stabilize when the amine concentration reached 5 kmol/m(3) while corrosion rates in the MEA system were directly proportional to amine concentrations. Furthermore, it was observed that a small amount of O-2 seemed to expedite severe corrosion.