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Preparation of Sodium Ferrate by Microwave Method

Sodium ferrate solution was obtained with microwave method using Fe3O4 as iron source. The product was characterized by ultraviolet-visible spectrum (UV-Vis). And the results indicated that the prepared product was sodium ferrate, which has a maximum absorption at 505nm. The concentration of the product was affected by many reaction conditions, such as activation time, reaction time, and concentration of reactant. The optimum conditions was determined through a series experiment, at which the concentration of sodium ferrate was 1.41g/L.