Rapid Chemical Synthesis of Four Ferrate(VI) Compounds

The preparation of four novel Fe(VI) salts, including PbFeO4, ZnFeO4, CdFeO4 and HgFeO4 is demonstrated. These Fe(VI) salts were synthesized from a solid phase reaction merely by grinding K2FeO4 with M (C2H3O2)2.nH2O (M = Pb2+, Zn2+) or M (NO3)2.nH2O (M = Cd2+, Hg2+) at room temperature. A rapid and efficient reaction occurred upon grinding the solid reactants to afford high yield ferrate(VI) salts which were characterized by XRD, EDS and FTIR techniques. All of the synthesized ferrates were rather stable and could be stored at room temperature for more than a month with no significant decomposition