The effect was studied of several clays on the stability of ferrate solution.The results indicate that the addition of clays retarted the decomposition of ferrate in alkaline solution due to the silicium of clays.
Different concentrations of ferrate! with ClO- and without ClO- in alkaline solution were traced by visible spectrometry, and the conversion reaction of Fe! to Fe" was found to exist, in condition that cOH-was ≥ 6 mol·L-1. ClO- would slow down the decomposition reaction rate of Ferrate! and increase the product concentration of Fe" in the system.
