Characteristics and Oxidizing Properties of Potassium Ferrate
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| Apr 22nd, 20:28 | |
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Pure potassium ferrate is a dark purple shiny powder. It is stable in dry air below 198°C. It is very soluble in water to form a light purple-red solution. After standing, it will decompose and release oxygen, and precipitate hydrated iron oxide. The alkalinity of the solution increases with decomposition. It is quite stable in strong alkaline solutions and is an excellent oxidant. It has a highly efficient disinfection effect. It has stronger oxidizing properties than Potassium Ferrate. The iron in potassium ferrate is +6 valent iron, which is different from the +2 or +3 valent state of general iron elements. It has strong oxidizing activity in the entire pH range, and the oxidation potential can reach 2.20V. It can directly oxidize ammonia to nitrate, oxidize hydrogen sulfide to sulfate, and oxidize organic matter to carbon dioxide and water. It can both deodorize and detoxify. Since Fe(VI) in high iron does not directly transform into Fe3+ when it decomposes in water, but undergoes the evolution of intermediate forms from hexavalent to trivalent ions with different charges, positive hydrolysis products will be produced during the transformation process. |
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