• Source: Iron(II) perchlorate

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:

Fe + 2 HClO4 + 6 H2O → Fe(ClO4)2·6H2O + H2
Although the ferrous cation is a reductant and the perchlorate anion is a strong oxidant, in the absence of atmospheric oxygen, dissolved ferrous perchlorate is stable in aqueous solution because the electron transfer between both species Fe2+ and ClO−4 is hindered by severe kinetic limitations. Being a weak Lewis base, the perchlorate anion is a poor ligand for the aqueous Fe2+ and does not contribute to the electron transfer by favoring the formation of an inner sphere complex giving rise to a possible reorganisation of the activated complex. The resulting high activation energy prohibits a thermodynamically spontaneous redox reaction (∆Gr < 0).
However, in aqueous solution, and under air, iron(II) perchlorate slowly oxidizes to iron(III) oxyhydroxide.
The hexahydrate consists of discreet hexa-aquo-iron(II) divalent cations and perchlorate anions. It crystallizes with an orthorhombic structure. It has minor phase transitions at 245 and 336 K.




Uses


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




References

Kata Kunci Pencarian:

• Feroin
• Bilangan oksidasi
• Litium
• Kamus rumus kimia
• Iron(II) perchlorate
• Cobalt(II) perchlorate
• Nickel(II) perchlorate
• Manganese(II) perchlorate
• Iron(II) carbonate
• Tris(bipyridine)iron(II) chloride
• Solubility chart
• Iron(III) oxide-hydroxide
• Transition metal perchlorate complexes
• Iron(III) azide