File talk:Pourbaix Diagram of Iron.svg

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The diagram is taken from http://www.wou.edu/las/physci/ch412/pourbaix.htm where indeed you find 1 Mole/liter as reference concentration. As you find a similar Diagram in Principles of Corrosion Engineering and Corrosion Control, Zaki Ahmad, Butterworth-Heinemann, 2006 online aviable in google books: https://books.google.de/books?id=10U1CRPV_BUC&lpg=PA45&dq=Stability%20Fe(OH)2%20pH&hl=de&pg=PA46#v=onepage&q=Stability%20Fe(OH)2%20pH&f=false Its states in point (5) page 46 that the diagram was made for 10⁶ mole/liter! On page 49 you also find a concentration (more accurate activity) depended diagram that clearly shows that the given file can't be for a solution of 1 mole/liter. Kound (talk) 13:43, 18 February 2016 (UTC)[reply]

pH scale mislabelled?

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The pH scale at the bottom may contain an error - it goes from 6,8,10,11,14; rather than 6,8.10,12,14 — Preceding unsigned comment was added by 208.73.76.65 (talk) 17:31, 27 February 2018 (UTC)[reply]

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