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by | Dec 19, 2023 | Impatiens

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Iron(II) perchlorate is the inorganic compound with the formula Fe(ClO4)2·6H2O. A green, water-soluble solid, it is produced by the reaction of iron metal with dilute perchloric acid followed by evaporation of the solution:[3]

Fe + 2 HClO4 + 6 H2O → Fe(ClO4)2·6H2O + H2

In solution, iron(II) perchlorate slowly oxidizes in air to iron(III) oxyhydroxide.[4]

The hexahydrate consists of discreet hexaaquoiron(II) dications and perchlorate anions. It crystallizes with an orthorhombic structure.[2] It has minor phase transitions at 245 and 336 K.[5]

Uses

In organic chemistry, iron(II) perchlorate can be used as a source of ferrous ions for the Fenton oxidation.[1]

References

  1. ^ a b Mark W. Zettler; Daniela Sustac Roman (2014). "Iron(II) Perchlorate". Encyclopedia of Reagents for Organic Synthesis (EROS). doi:10.1002/047084289X.ri064.pub2.
  2. ^ a b Ghosh, Minakshi; Ray, Siddhartha (1981). "Twinning, disorder and phase transition in ferrous Perchlorate hexahydrate crystals". Zeitschrift für Kristallographie - Crystalline Materials. 155 (1–2): 129–137. Bibcode:1981ZK....155..129G. doi:10.1524/zkri.1981.155.1-2.129.
  3. ^ B.K. Chaudhuri (1975). "A new type of phase transition in M(ClO4)2(H2O)6 M = Fe, Co, Ni and Mn". Solid State Communications. 16 (6): 767–772. doi:10.1016/0038-1098(75)90071-X.
  4. ^ Philip George (1954). "The oxidation of ferrous perchlorate by molecular oxygen". Journal of the Chemical Society (Resumed): 4349–4359. doi:10.1039/JR9540004349.
  5. ^ D. P. Chiang; C. H. Peng; J. K. Mei; I. M. Jiang; S. C. Lin; Y. C. Chen; H. T. Liu; Y. F. Chen; W. S. Tse (2008). "Raman spectra of crystalline iron perchlorate hexahydrate". Journal of Raman Spectroscopy. 39 (3): 344–348. doi:10.1002/jrs.1801.
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