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400866

Sigma-Aldrich

Iron(II) oxide

−10 mesh, ≥99.6% trace metals basis

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Synonym(s):
Ferrous oxide, Iron monooxide
Empirical Formula (Hill Notation):
FeO
CAS Number:
1345-25-1
Molecular Weight:
71.84
EC Number:
215-721-8
MDL number:
MFCD00016095
PubChem Substance ID:
24864959
NACRES:
NA.23

Quality Level

100

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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This Item
637106544884518158
Iron(II) oxide −10 mesh, ≥99.6% trace metals basis

Sigma-Aldrich

400866

Iron(II) oxide

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

Sigma-Aldrich

637106

Iron(II,III) oxide

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

Sigma-Aldrich

544884

Iron(III) oxide

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

Sigma-Aldrich

518158

Iron(II,III) oxide

form

powder

form

nanopowder, spherical

form

nanopowder

form

powder

particle size

−10 mesh

particle size

50-100 nm (SEM)

particle size

<50 nm (BET)

particle size

-

density

5.7 g/mL at 25 °C (lit.)

density

4.8-5.1 g/mL at 25 °C (lit.)

density

-

density

4.8-5.1 g/mL at 25 °C (lit.)

impurities

≤5% free iron

impurities

-

impurities

-

impurities

-

application(s)

battery manufacturing

application(s)

battery manufacturing

application(s)

battery manufacturing

application(s)

battery manufacturing

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

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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)
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
Fe3O4 core/layered double hydroxide shell nanocomposite: versatile magnetic matrix for anionic functional materials.
Liang Li et al.
Angewandte Chemie (International ed. in English), 48(32), 5888-5892 (2009-07-04)
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
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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
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