400866
Iron(II) oxide
−10 mesh, ≥99.6% trace metals basis
Synonym(s):
Ferrous oxide, Iron monooxide
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All Photos(3)
About This Item
Empirical Formula (Hill Notation):
FeO
CAS Number:
Molecular Weight:
71.84
EC Number:
MDL number:
UNSPSC Code:
12352303
PubChem Substance ID:
NACRES:
NA.23
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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)
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