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637106

Sigma-Aldrich

Iron(II,III) oxide

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

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Synonym(s):
Ferrosoferric oxide, Iron oxide black, Magnetite
Empirical Formula (Hill Notation):
Fe3O4
CAS Number:
Molecular Weight:
231.53
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

Assay

97% trace metals basis

form

nanopowder
spherical

surface area

6-8 m2/g , estimated

particle size

50-100 nm (SEM)

mp

1538 °C (lit.)

density

4.8-5.1 g/mL at 25 °C (lit.)

bulk density

0.84 g/mL

application(s)

battery manufacturing

SMILES string

O=[Fe].O=[Fe]O[Fe]=O

InChI

1S/3Fe.4O

InChI key

SZVJSHCCFOBDDC-UHFFFAOYSA-N

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This Item
310069518158725331
Iron(II,III) oxide nanopowder, 50-100 nm particle size (SEM), 97% trace metals basis

Sigma-Aldrich

637106

Iron(II,III) oxide

Iron(II,III) oxide powder, <5 μm, 95%

Sigma-Aldrich

310069

Iron(II,III) oxide

Iron(II,III) oxide 99.99% trace metals basis

Sigma-Aldrich

518158

Iron(II,III) oxide

form

nanopowder, spherical

form

powder

form

powder

form

dispersion, nanoparticles

particle size

50-100 nm (SEM)

particle size

<5 μm

particle size

-

particle size

4-6 nm (TEM)

mp

1538 °C (lit.)

mp

1538 °C (lit.)

mp

1538 °C (lit.)

mp

-

density

4.8-5.1 g/mL at 25 °C (lit.)

density

4.8-5.1 g/mL at 25 °C (lit.)

density

4.8-5.1 g/mL at 25 °C (lit.)

density

1.00 g/mL at 25 °C

surface area

6-8 m2/g , estimated

surface area

-

surface area

-

surface area

-

General description

Iron(II,III) oxide nanopowder is a fine powder composed of iron oxide particles with a size ranging from 50-100 nm. It is also known as ferrous ferric oxide or ferrosoferric oxide. Iron(II,III) oxide is a reddish-brown, magnetic material that is stable and chemically inert. It is commonly used as a pigment in paints, coatings, and ceramics, and it is also used as a catalyst in many chemical reactions. As a nanopowder form, this iron(II,III) oxide has a large surface area, which makes it more effective as a catalyst.

Application

Iron(II,III) oxide (Fe3O4) can be used as a heterogeneous catalyst for the Fenton type oxidation of rhodamine B. It can be used as an anode material for the fabrication of lithium-ion batteries. Fe3O4 can also be utilized in the catalysis of the oxygen reduction reaction (ORR) in the anion exchange membrane fuel cell.

Analysis Note

XRD image is representative only; it is not lot specific

Storage Class Code

11 - 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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Enhanced electrochemical performance of template-free carbon-coated iron (II, III) oxide hollow nanofibers as anode material for lithium-ion batteries
Im ME, et al.
Journal of Power Sources, 284(1), 392-399 (2015)
A conceptually new type of bio-hybrid scaffold for bone regeneration.
Tampieri A, et al.
Nanotechnology, 22(1) (2011)
Magnetomotive nanoparticle transducers for optical rheology of viscoelastic materials.
Crecea V, et al.
Optics Express, 17(25), 23114-23122 (2009)
Fenton-like oxidation of Rhodamine B in the presence of two types of iron (II, III) oxide
Xue X, et al.
Journal of Hazardous Materials, 166(1), 407-414 (2009)
Spark Plasma Sintered HA-Fe3O4-Based Multifunctional Magnetic Biocomposites.
Bajpai I, et al.
Journal of the American Ceramic Society. American Ceramic Society, 96(7), 2100-2108 (2013)

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