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Iron(II) acetate

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Formula  Fe(C2H3O2)2
Molar mass  173.93 g/mol
Iron(II) acetate wwwsigmaaldrichcomcontentdamsigmaaldrichstr
Appearance  White crystals (anhydrous); Light green crystals (tetrahydrate)

Iron(II) acetate is an coordination complex with formula Fe(C2H3O2)2. It is a white solid, although impure samples can be slightly colored. A light green tetrahydrate is also known, which is highly soluble in water.

Contents

Preparation and structure

Iron powder reacts with hot acetic acid to give the product:

Fe + 2 CH3CO2H → Fe(CH3CO2)2 + H2

It adopts a polymeric structure with octahedral Fe(II) centers bridged by acetate ligands. It is not a salt.

The hydrate can be made by the reaction of ferrous oxide or ferrous hydroxide with acetic acid.

Reaction of scrap iron with acetic acid affords a brown mixture of various iron(II) and iron(III) acetates that are used in dyeing.

Uses

Ferrous acetate is used as a mordant by the dye industry. Ebonizing wood is one such process.

References

Iron(II) acetate Wikipedia


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