Potassium Ferrate
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Potassium ferrate is the chemical compound with the formula K2FeO4. This purple, paramagnetic salt is a rare example of an Fe(VI) compound. In most of its compounds, iron has the oxidation state II (i.e., Fe2+) or III (Fe3+). Reflecting its high oxidation state, FeO42 is a powerful oxidant. K2FeO4 has attracted interest for applications in "Green Chemistry" because the by-products of its use, iron oxides, are environmentally innocuous. In contrast, some related oxidan...
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Potassium ferrate is the chemical compound with the formula K2FeO4. This purple, paramagnetic salt is a rare example of an Fe(VI) compound. In most of its compounds, iron has the oxidation state II (i.e., Fe2+) or III (Fe3+). Reflecting its high oxidation state, FeO42 is a powerful oxidant. K2FeO4 has attracted interest for applications in "Green Chemistry" because the by-products of its use, iron oxides, are environmentally innocuous. In contrast, some related oxidants such as chromate are considered environmentally hazardous. The main difficulty with the use of K2FeO4 is that it is often too reactive, as indicated by the fact that it decomposes in contact with water. As a dry solid, K2FeO4 is stable. It decomposes with evolution of O2 in neutral and especially rapidly in acidic water. At high pH, aqueous solutions are stable. The deep purple solutions are similar in appearance to potassium permanganate. K2FeO4 is stronger oxidizing agent than KMnO4.
