Iron Oxide

Iron Oxide
Identifications
Formula : Fe2O3
Formula : FeO
Elements : Iron, Oxygen
CAS Number : 1309-37-1
CAS Number : 1332-37-2
CCOHS Record Number : 344
RTECS Number : NO7400000
RTECS Number : NO7525000 (fume)
Synonyms/Related:
Alpha-ferric oxide
Alpha-iron oxide
Anhydrous iron oxide
Anhydrous oxide of iron
Bauxite residue
Black oxide of iron
Blended red oxides of iron
Caput mortuum light
CI 77489
Colliron
Colloidal ferric oxide
Diiron trioxide
Eisenoxyd
English iron oxide red
Ethiops iron
FEO
Ferric Oxide
Ferric oxide hydrate
Ferrosoferric oxide
Ferrous ferrite
Ferrous oxide
Ferrox
Gamma-ferric oxide
Hydrated ferric oxide
Hydrous ferric oxide
Iron ferrite
Iron monooxide
Iron monoxide
Iron Oxide
Iron oxide (Fe203) , hydrate
Iron oxide (Fe2O3) , hydrate
Iron oxide (FeO)
Iron oxide red
Iron oxide, dust and fume
Iron oxide, spent
Iron oxides
Iron sesquioxide
Iron sponge, spent obtained from coal gas purification
Iron trioxide
Iron(2) oxide
Iron(II) oxide
Iron(II,III) oxide
Iron(III) oxide
Iron(III) oxide, aerosol
Iron(III) oxide
Natural iron oxides
Natural wuestite
Red iron oxide
Red oxide
Rouge
Specular iron
Triiron tetraoxide
Triiron tetroxide

Common Names:

English : red oxide

French : oxyde rouge

German : Oxid rot

Italian : rosso ossido

Portuguese : vermelho óxido

Spanish : rojo óxido

Alternate Names:

English: English red, Indian red, light red, red iron oxide, Venetian red

French: rouge Indien

Spanish: rojo Indio
Mars red is the name given to the artificial substitute of natural red iron oxide.

Origin and History

Natural red iron oxide is based on the mineral ore hematite. The word hematite comes from the Greek word hema, meaning blood and was given the name "bloodstone" in ancient Greece (Theofrastus, c. 325 B.C.), implying that the mineral is blood red in color. Hematite is an important ore of iron and its blood red color in the powdered form lends itself well as a pigment. Hematite is among the oldest pigments known to humankind and has been used by every major civilization.SourceIn nature hematite rarely occurs as crystals but usually as nodules or earthen masses. The color of the crystalline form varies from steel-gray to black, while crypto-crystalline hematite is dull red to bright red. This common mineral is found in deposits of the most diverse types. There are several varieties of hematite, two of which are suitable for use as pigments: oolitic hematite, which is a friable earth composed of small rounded grains of dark red color that are lustrous and greasy to the touch; and hematite rose, a fine-crystalline and crypto-crystalline form of hematite of red color, which are usually encountered in friable earthen masses or reniform aggregates of bladed crystals in a circular arrangement giving the appearance of a rose. Red iron oxides (hematite) are found around the world and have been used as pigments since prehistory.Permanence and

Properties
Incompatiblities:
calcium hypochlorite
carbon monoxide
hydrogen peroxide
Health & Regulatory Guidelines
EPA Regulations:
Marine Polutant: Yes
NIOSH Guidelines:
TWA: 5 mg/m³
IDLH: 2500 mg/m³
OSHA Regulations:
TWA: 10 mg/m³
TWA Vacated: 10 mg/m³

49 CFR 172.101 - Hazardous Materials Table

Hazardous materials description and proper shipping names :Iron oxide, spent, or Iron sponge, spent obtained from coal gas purification.

Kenneth Barbalace. Chemical Database - Iron oxide. EnvironmentalChemistry.com.

1995 - 2007. Accessed on-line: 6/19/2007

http://environmentalchemistry.com/yogi/chemicals/cn/Iron oxide.html