gas solubility of carbon dioxide in an aqueous solution of 32.5 wt.% N-methyldiethanolamine and 12.5wt.% diethanolamine with 4,6,and 10 wt.% 2-amino-2-methyl-1-propanol has been measured, at 313.15,343.15, and 393.15K, over a range of pressure from 3 to 2000 kPa,using a chromatographic method for amalysis of the liquid phase.