Eh-pH diagram: for aqueous

Figure 12.18 Eh-pH diagram for aqueous species in the system S-02-H20 at 25°C neglecting sulfate, bisulfate, and elemental sulfur showing significant stability fields for sulfite and bisulfite, thiosulfate and its conjugate acid, and tetrathionate. Reprinted from Geochim. et Cosmochim. Acta, 56, M. A. Williamson and J. D. Rimstidt, Correlation between structure and thermodynamic properties of aqueous sulfur species, 3867-80, 1992, with permission from Elsevier Science Ltd., The Boulevard, Langford Lane, Kidlington 0X5 1GB, U.K.

Figure 13 Eh-pH diagram for aqueous species in the U-Oj-HjO system in pure water at 25°C and 1 bar total pressure for ZU = 10" M. The U02(c) solid/solution boundary for ZU = 10" M is stippled.

Figure 13.10 Eh-pH diagram for aqueous species and solids in the system U-O2-CO2-HjO at 25°C and 1 bar total pressure. Soiid/aqueous boundaries (stippled) are drawn for SU = 10-5 UDC and UTC are U02(C03)f- and U02(C03)f-, respectively.

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