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529311

Sigma-Aldrich

Iron(III) oxide

≥99.995% trace metals basis

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Synonym(s):
Ferric oxide
Empirical Formula (Hill Notation):
Fe2O3
CAS Number:
Molecular Weight:
159.69
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Assay

≥99.995% trace metals basis

form

powder

application(s)

battery manufacturing

SMILES string

O=[Fe]O[Fe]=O

InChI

1S/2Fe.3O

InChI key

JEIPFZHSYJVQDO-UHFFFAOYSA-N

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This Item
544884310050371254
Iron(III) oxide ≥99.995% trace metals basis

Sigma-Aldrich

529311

Iron(III) oxide

Iron(III) oxide nanopowder, <50 nm particle size (BET)

Sigma-Aldrich

544884

Iron(III) oxide

Iron(III) oxide powder, <5 μm, ≥96%

Sigma-Aldrich

310050

Iron(III) oxide

Iron(III) oxide hydrated, catalyst grade, 30-50 mesh

Sigma-Aldrich

371254

Iron(III) oxide

form

powder

form

nanopowder

form

powder

form

powder

application(s)

battery manufacturing

application(s)

battery manufacturing

application(s)

-

application(s)

battery manufacturing

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

General description

Iron is present in the form of iron(III) oxide in almost all natural sources of water. It is the most common supplement of iron for algae. It is a highly stable n-type semiconductor, and possesses a band gap of 2.0 to 2.2eV. It is widely used in solar photoelectrolysis cells. Self-organized nanoporous iron(III) oxide (haematite) has been prepared. Orientation effects on nearly opaque single crystals of iron(III) oxide have been investigated by laser Raman spectroscopy.

Application

Iron(III) oxide may be used in the preparation of iron(III) oxide-hydrate gels.

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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25G
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MMYOMAG-74K-13

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Iron oxide powder, max. particle size 50 micron, weight 200 g, purity 99.9%

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Iron oxide

Iron(II,III) oxide powder, <5 μm, 95%

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Iron(II,III) oxide

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Iron(II,III) oxide

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)
The structure of iron (III) oxide-hydrate gels.
Van der Giessen AA.
J. Inorg. Nucl. Chem., 28(10), 2155-2159 (1966)
Electrochemistry and photoelectrochemistry of iron (III) oxide.
Dare-Edwards MP, et al.
J. Chem. Soc., Faraday, 79(9), 2027-2041 (1983)
Light-induced reduction of natural iron (III) oxide and its relevance to phytoplankton.
Finden DAS, et al.
Nature, 309, 783-784 (1984)
Eric T Ahrens et al.
Nature reviews. Immunology, 13(10), 755-763 (2013-09-10)
The increasing complexity of in vivo imaging technologies, coupled with the development of cell therapies, has fuelled a revolution in immune cell tracking in vivo. Powerful magnetic resonance imaging (MRI) methods are now being developed that use iron oxide- and

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