Description
Ferrous oxalate, or iron (II) oxalate, is a chemical compound consisting of one iron (II) ion (Fe
2+) and one oxalate ion (C
2O
42-). It has the chemical formula FeC
2O
4.
Iron(II) oxalate is more commonly encountered as the dihydrate, FeC
2O
4·2H
2O . Its crystal structure consists of chains of oxalatebridged iron atoms, capped by water molecules.
When heated, it dehydrates and decomposes into carbon dioxide, carbon monoxide, iron oxides and pyrophoric black iron.
Chemical Properties
Pale-yellow, crystalline powder; odorless. Soluble in acids; insoluble in water.
Uses
Photographic developer, pigment in glass, plastics, paints.
Uses
Used as a photographic developer, glass tint, decorative glass colorant, and pigment in plastics, paints, and lacquers.
General Description
Odorless yellow solid. Insoluble in water and denser in water. Sinks in water.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
Inorganic reducing agents, such as Ferrous oxalate, react with oxidizing agents to generate heat and products that may be flammable, combustible, or otherwise reactive.
Hazard
Toxic. Evolves carbon monoxide on heating.
Health Hazard
Inhalation of dust may cause irritation of nose and throat. Ingestion causes burning pain in throat and stomach; mucous membranes turn white; can also cause vomiting, weak pulse, collapse, and death. Dust irritates eyes and may irritate skin on prolonged contact.
Fire Hazard
Special Hazards of Combustion Products: Iron fume or iron oxide fume may form in fire.
Flammability and Explosibility
Not classified
