Experimental solubility data of H₂S in diglycolamine (DGA) have been provided by Martin et al. The DGA solution used in their experiment had 60 wt% DGA, and the remainder was water. Equilibrium data, reported at two temperatures, 50°C and 100°C, are shown in Table P16.25.

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Table P16.25 Equilibrium Data for Problem 16.25 T = 50°C T = 100°C PH₂S (kPa) Moles H₂S MolesDGA 4.9 9.3 13.4 16.5 17.5 48.2 PH₂S (kPa) MolesH₂S MolesDGA 2.5 3.9 5.4 8.9 11.5 18.9 0.221 0.262 0.291 0.344 0.381 0.452 0.057 0.071 0.095 0.100 0.116 0.182