Solid phases of iron

Thus the diagram shows the solid phases of iron, the activities of metal ions and the pressures of hydrogen and oxygen gas that are at equilibrium at any given potential and pH when pure iron reacts with pure water. 

Aqueous complexes and solid phases of iron considered for computation a) Complexes ... 

In Fig. 1.15 (bottom) curves /and m show the potential-pH relationships for the reversible hydrogen and oxygen electrodes at p 2 = Poi = f respectively. Within the area confined by the curves / and m, HjO is thermodynamically stable and Ph2 < i Poi < whereas below/and above m, Pn > 1 atm, and P02 > 1 atm, respectively see equations 1.11 and 1.12). Thus the diagram shows the solid phases of iron, the activities of metal ions and the pressures of hydrogen and oxygen gas that are at equilibrium at any given potential and pH when pure iron reacts with pure water. 

Under the same conditions there is no increase of the thermal effect for the iron hydroxide. In some cases there is even a slight decrease in the absorption of ultrasoimd. This can be caused by a change in mechanical characteristics of the matrix network in these samples, which is inlaid with the highly dispersed solid phase of iron hydroxide and changes its viscoelastic characteristics. 

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See also in sourсe #XX -- [ ]

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