Weight loss tests were performed to investigate the corrosivity of a new absorbent, 2-amino-2-methyl-l-propanol (AMP) saturated with pure CO2and Mixture of CO2and 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 M EA 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/m3while corrosion rates in the MEA system were directly proportional to amine concentrations. Furthermore, it was observed that a small amount of O2seemed to expedite severe corrosion