Iron(II) oxalate
Ferrous oxalate, or iron oxalate, is an inorganic compound with the formula FeC2O4 where is typically 2. These are orange compounds, poorly soluble in water.Structure
The dihydrate FeC2O4 is a coordination polymer, consisting of chains of oxalate-bridged ferrous centers, each with two aquo ligands.
When heated, it dehydrates and decomposes into a mixture of iron oxides and pyrophoric iron metal, with release of carbon dioxide, carbon monoxide, and water.
