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Sigma-Aldrich

Iron(II,III) oxide

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

Synonym(s):

Ferrosoferric oxide, Iron oxide black, Magnetite

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About This Item

Empirical Formula (Hill Notation):
Fe3O4
CAS Number:
Molecular Weight:
231.53
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.23

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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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

11 - Combustible Solids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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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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)
Cobalt-iron (II, III) oxide hybrid catalysis with enhanced catalytic activities for oxygen reduction in anion exchange membrane fuel cell
Wang C, et al.
Journal of Power Sources, 277(1), 147-154 (2015)
Longitudinal 3He and proton imaging of magnetite biodistribution in a rat model of instilled nanoparticles.
Al Faraj A, et al.
Magnetic Resonance in Chemistry, 59(6), 1298-1303 (2008)
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)
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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