What is it about?
Ferrate(VI) ion contains four oxygen atoms, which are coordinated with the central iron atom and its sodium and potassium salts (Na2FeO4 and K2FeO4) are generally used in studies for environmental remediation. The fundamental properties of Fe(VI) ion has been reviewed as a greener oxidant and it has been shown to possess a significant capabilities as a coagulant, and disinfectant for microorganisms and viruses as well.
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Why is it important?
The final reduced by-product of Fe(VI) is a non-toxic ferric oxide/hydroxide, which is an effective coagulant for removing toxic metals and nutrients such as arsenic and phosphate. Fe(VI) is also an effective disinfectant for quite a few microorganisms and species that are susceptible to Fe(VI) include viruses including Escherichia coli.
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This page is a summary of: Ferrates: Greener Oxidants with Multimodal Action in Water Treatment Technologies, Accounts of Chemical Research, February 2015, American Chemical Society (ACS),
DOI: 10.1021/ar5004219.
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