Pourbaix diagram

English

Pourbaix diagram of iron. The Y axis corresponds to voltage potential.

Etymology

Named after Marcel Pourbaix (1904–1998), the Russian-born Belgian chemist who invented them.

Noun

Pourbaix diagram (plural Pourbaix diagrams)

1. A plot of possible thermodynamically stable phases of an aqueous electrochemical system, with boundaries between the predominant chemical species represented by lines.