90℃におけるFe-SO4-H2O懸濁系電位-pH図
90℃における電位-pH図 (第5報)
1975 年 91 巻 1053 号 p. 727-732
詳細
1975 年 91 巻 1053 号 p. 727-732
The potential and pH measurements of the Fe-SO4-H20 suspension system were carried out at 90°C by increasing the pH of sulfate solutions containing sulfate ion of around 1 mol/lby the aid of a rotating Pt electrode, a glass electrode, and two reference electrodes.
Theresultsobtainedare summarized in the potential-pH diagram (Fig.6 in the text) including the stable regions of Fe0 (powder), Fe2+, Fe3+, basic ferric salt, ferric oxide hydrated, basic ferrous salt (Fe2 (OH) 2SO4) 8 and ferrous oxide hydrated. Empirical potential-pH equations are also presented and compared with those calculated at 100°C.
