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310050

Sigma-Aldrich

Iron(III) oxide

powder, <5 μm, ≥96%

Synonym(s):

Ferric oxide

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About This Item

Empirical Formula (Hill Notation):
Fe2O3
CAS Number:
Molecular Weight:
159.69
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.21

Assay

≥96%

form

powder

particle size

<5 μm

SMILES string

O=[Fe]O[Fe]=O

InChI

1S/2Fe.3O

InChI key

JEIPFZHSYJVQDO-UHFFFAOYSA-N

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General description

Iron (III) oxide (Fe2O3) is an inorganic compound. It is one of the three main types of iron oxide. The other two are the rare iron (II) oxide (FeO) and the naturally occurring iron (II, III) oxide (Fe3O4), found in the mineral magnetite. In the steel industry Fe2O3 is the primary source of iron. In addition to being ferromagnetic, Fe2O3 is easily attacked by acids.

Application

Iron (III) oxide is used:
  • As a catalyst in the reduction of nitroarenes.
  • As an oxidizing agent in the synthesis of [11C] Phosgene ([11C] COCl2).

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Light-induced reduction of natural iron (III) oxide and its relevance to phytoplankton.
Finden DAS, et al.
Nature, 309, 783-784 (1984)
William B Ingler et al.
Journal of the American Chemical Society, 126(33), 10238-10239 (2004-08-19)
Stable zinc-doped iron(III) oxide thin films that exhibit p-type behavior were synthesized by spray pyrolytic deposition (SPD) on conducting indium-doped tin oxide-coated glass substrate. The highest photocurrent density of 1.1 mA/cm2 was observed at an illumination intensity of 40 mW/cm2
Synthesis and photoelectrochemical properties of nanoporous iron (III) oxide by potentiostatic anodization.
Prakasam HE, et al.
Nanotechnology, 17(17), 4285-4285 (2006)

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