Abstract
The oxidation behaviours of iron powders, ca. 100 μm in diameter, in 5–50 m NaOH, 5–40 m KOH and 5–40 m LiOH solutions at 373–573 K were investigated in the absence and presence of oxygen, where m is molality. The oxidation of iron proceeded noticeably above 423 K to form Fe3O4, α-Fe2O3, α-NaFeO2, γ-Fe2O3, LixFe3−xO4 and α-LiFeO2 depending on the reaction conditions. The rate of oxidation in LiOH solutions was much slowerthan those in NaOH and KOH solutions.
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Uchida, S., Kashiwagi, H., Sato, T. et al. Formation of iron oxides by the oxidation of iron in Fe-MOH-H2O and Fe-MOH-H2O-O2 systems (M = Li, Na, K). JOURNAL OF MATERIALS SCIENCE 31, 3827–3830 (1996). https://doi.org/10.1007/BF00352798
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DOI: https://doi.org/10.1007/BF00352798