Ferric Oxalate

Ferric Oxalate is an inorganic coordination compound with the chemical formula

Fe

2

(

C

2

O

4

)

3

Fe

2

(C

2

O

4

)

3

. It commonly exists in hydrated forms such as the tetrahydrate and hexahydrate. Ferric oxalate is characterized by pale yellow to lime green crystalline solids depending on hydration. It is odorless and has limited solubility in water, approximately 0.22 g/100 mL at 25°C. The iron(III) centers exhibit octahedral coordination geometry with bridging oxalate ligands acting as chelating groups.

Ferric oxalate is widely used as a photographic sensitizer, an analytical reagent, and in chemical research involving coordination chemistry. It decomposes thermally to iron(III) oxide and carbon dioxide at around 365°C. The compound is stable under normal conditions but can undergo slow hydrolysis in aqueous acidic media.

Key Information:

Chemical formula:

Fe

2

(

C

2

O

4

)

3

Fe

2

(C

2

O

4

)

3

Molecular weight: ~375.75 g/mol

Appearance: Pale yellow to lime green crystalline solid (hydrated)

Solubility: Slightly soluble in water

Coordination geometry: Octahedral around Fe(III)

Applications: Photographic chemicals, analytical reagent, coordination chemistry studies

Thermal decomposition: ~365°C to iron(III) oxide and carbon dioxide

This information suits product catalogs or scientific descriptions for laboratory chemicals, highlighting its purity and functional uses in research and industry.