Ferric Oxide Properties, Molecular Formula, Applications - WorldOfChemicals

Ferric Oxide Properties

Ferric Oxide

Molecule Structure Image



Ferric oxide is an inorganic compound. It is used as the feedstock of the steel and iron industries. It is used to put the final polish on metallic jewellery and lenses, and historically as a cosmetic. It is also used as a pigment. Nanoparticles of ferric oxide are biocompatible, non-toxic, are chemically active on their surface, and are paramagnetic at particle sizes above a critical limit of about 5 nanometers. They find wide use in biomedical applications. Can be used as contrast agents in magnetic resonance imaging, in labeling of cancerous tissues, magnetically controlled transport of pharmaceuticals, localized thermotherapy, and preparation of ferrofluids. Ferric oxide in a granular form is readily available for purchase in the saltwater aquarium and reef community. Its primary function as a filtration media is to pull phosphates out of the water column to aid in the control of nuisance algae.

Chemical Properties

Appearance Red-brown solid
CAS Number 1309-37-1
ChEBI 50819
Crystal Structure Rhombohedral
Density 5.24 g/cm3
EINECS Number 215-168-2
IUPAC Name Oxo(oxoferriooxy)iron
InChI 1S/2Fe.3O
Main Hazards Irritant
Melting Point 1566 °C
Molar Mass 159.69 g/mol
Molecular Formula Fe2O3
NFPA 704 H-1,F-0,R-0,C-NA
Other_Cations Manganese(III) Oxide;Cobalt(III) Oxide
RTECS Number NO7400000
Related Compounds Iron(II) Oxide;Iron(II,III) Oxide
Solubility Insoluble
Synonyms Ferric Oxide;Hematite;Ferric Iron;Red Iron Oxide;Synthetic Maghemite;Colcothar;Iron Sesquioxide;Iron(III) Oxide