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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:
1309-37-1
Molecular Weight:
159.69
EC Number:
215-168-2
MDL number:
MFCD00011008
PubChem Substance ID:
24877672
NACRES:
NA.23

Quality Level

100

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
544884310050310069
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(II,III) oxide powder, <5 μm, 95%

Sigma-Aldrich

310069

Iron(II,III) oxide

form

powder

form

nanopowder

form

powder

form

powder

application(s)

battery manufacturing

application(s)

battery manufacturing

application(s)

-

application(s)

battery manufacturing

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

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

GF41696781

Iron oxide

Iron(II,III) oxide powder, <5 μm, 95%

Sigma-Aldrich

310069

Iron(II,III) oxide

Iron(II,III) oxide nanopowder, 50-100 nm particle size (SEM), 97% trace metals basis

Sigma-Aldrich

637106

Iron(II,III) oxide

The structure of iron (III) oxide-hydrate gels.
Van der Giessen AA.
J. Inorg. Nucl. Chem., 28(10), 2155-2159 (1966)
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)
Synthesis and photoelectrochemical properties of nanoporous iron (III) oxide by potentiostatic anodization.
Prakasam HE, et al.
Nanotechnology, 17(17), 4285-4285 (2006)
Light-induced reduction of natural iron (III) oxide and its relevance to phytoplankton.
Finden DAS, et al.
Nature, 309, 783-784 (1984)
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