ferrate

noun Chemistry.

1. a salt of the hypothetical ferric acid, H2FeO4.

noun

1. a salt containing the divalent ion, FeO 4 2– . Ferrates are derivatives of the hypothetical acid H 2 FeO 4

1. A compound containing ferric oxide and another oxide. Ferrates are stable only in strongly alkaline conditions and impart a purple color to aqueous solutions.