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Sigma-Aldrich

Iron(II) oxide

−10 mesh, ≥99.6% trace metals basis

Synonym(s):

Ferrous oxide, Iron monooxide

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About This Item

Empirical Formula (Hill Notation):
FeO
CAS Number:
1345-25-1
Molecular Weight:
71.84
EC Number:
215-721-8
MDL number:
MFCD00016095
UNSPSC Code:
12352303
PubChem Substance ID:
24864959
NACRES:
NA.23

Assay

≥99.6% trace metals basis

form

powder

impurities

≤5% free iron

particle size

−10 mesh

density

5.7 g/mL at 25 °C (lit.)

application(s)

battery manufacturing

SMILES string

O=[Fe]

InChI

1S/Fe.O

InChI key

UQSXHKLRYXJYBZ-UHFFFAOYSA-N

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General description

Iron(II) oxide nanoparticles possess unique properties such as superparamagnetic behavior, ease of surface modification, and biocompatibility. They are applied in the fields of photocatalysis, magnetic storage media, targeted drug delivery, and gas sensing.
Iron(II) oxide, also known as ferrous oxide or wustite, is a chemical compound with the formula FeO. It is a fine, grey-black powder with a 10-mesh particle size. Iron(II) oxide adopts a cubic, rock salt structure and often exists as a non-stoichiometric, iron-deficient compound in which some of the iron is oxidized to a 3+ oxidation state. Iron(II) oxide is shelf-stable at room temperature but at 575 °C tends to disproportionate to iron metal and Fe3O4. One of its primary applications is as a black pigment in paints, inks, and ceramics.

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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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Biosynthesized FeO nanoparticles coated carbon anode for improving the performance of microbial fuel cell
M. Harshiny, et al.
International Journal of Hydrogen Energy, 42, 26488-26495 (2017)
L F Gamarra et al.
Journal of nanoscience and nanotechnology, 10(7), 4145-4153 (2010-12-07)
The magnetic resonance imaging contrast agent, the so-called Endorem colloidal suspension on the basis of superparamagnetic iron oxide nanoparticles (mean diameter of 5.5 nm) coated with dextran, were characterized on the basis of several measurement techniques to determine the parameters
Antony George et al.
ACS applied materials & interfaces, 3(9), 3666-3672 (2011-08-16)
A cost-effective and versatile methodology for bottom-up patterned growth of inorganic and metallic materials on the micro- and nanoscale is presented. Pulsed electrodeposition was employed to deposit arbitrary patterns of Ni, ZnO, and FeO(OH) of high quality, with lateral feature
Haiyan Hong et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 17(31), 8726-8730 (2011-06-17)
Iron oxide coated platinum nanowires (Pt@Fe(2)O(3)NWs) with a diameter of 2.8 nm have been prepared by the oxygen oxidation of FePt NWs in oleylamine. These "cable"-like NWs were characterised by transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and X-ray
Hiroaki Kotani et al.
Journal of the American Chemical Society, 133(10), 3249-3251 (2011-02-19)
The photocatalytic formation of a non-heme oxoiron(IV) complex, [(N4Py)Fe(IV)(O)](2+) [N4Py = N,N-bis(2-pyridylmethyl)-N-bis(2-pyridyl)methylamine], efficiently proceeds via electron transfer from the excited state of a ruthenium complex, [Ru(II)(bpy)(3)](2+)* (bpy = 2,2'-bipyridine) to [Co(III)(NH(3))(5)Cl](2+) and stepwise electron-transfer oxidation of [(N4Py)Fe(II)](2+) with 2 equiv
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