ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Chemistry of ferrates. II. The preparation of potassium ferrate

J. Toušek and A. Toušková

Slovak Technical University, Bratislava

Abstract: cf. C.A. 51, 7236d. When FeCl₃ is oxidized with KClO in satd. KOH, according to equation 2FeCl₃ + 3KClO + 10KOH = 2K₂FeO₄ + 9KCl + 5H₂O, higher temps. speeds up the oxidation and cause a rapid decompn. of K₂FeO₄. The excess of KClO increases the yield of K₂FeO₄ and shortens the time required for max. concn. of K₂FeO₄ but the stability of K₂FeO₄ in the reaction mixt. is decreased by the formation of a great amt. of salts. The greatest yield of K₂FeO₄ is obtained at 30°, at 3 times excess of KClO and 15 min. reaction time. A simple method for prepn. of K₂FeO₄ is described.

Full paper in Portable Document Format: 112a113.pdf (in Slovak)

Chemical Papers 11 (2) 113–118 (1957)