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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:
1309-37-1
Molecular Weight:
159.69
EC Number:
215-168-2
MDL number:
MFCD00011008
UNSPSC Code:
12352302
PubChem Substance ID:
329753614
NACRES:
NA.21
Assay:
≥96%
form:
powder

Quality Level

100

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

310050-VAR:
310050-500G:4548173928227
310050-25G:4548173928210
310050-BULK:
310050-2.5KG:4548173928203

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Certificates of Analysis (COA)

Lot/Batch Number
0000412321
0000412321
MKCV8788
MKCW7083
MKCW7084

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Iron(III) oxide

Electrical properties of stoichiometric BiFeO3 prepared by mechanosynthesis with either conventional or spark plasma sintering.
Perejon A, et al.
Journal of the American Ceramic Society. American Ceramic Society, 96(4), 1220-1227 (2013)
Single phase, electrically insulating, multiferroic La-substituted BiFeO3 prepared by mechanosynthesis.
Perejon A, et al.
Journal of Material Chemistry C, 2(39), 8398-8411 (2014)
Synthesis and photoelectrochemical properties of nanoporous iron (III) oxide by potentiostatic anodization.
Prakasam HE, et al.
Nanotechnology, 17(17), 4285-4285 (2006)
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
The single-crystal Raman spectra of nearly opaque materials. Iron (III) oxide and chromium (III) oxide.
Beattie IR and Gilson TR.
J. Chem. Soc. Sect. A, 980-986 (1970)
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