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Sigma-Aldrich

Iron(II,III) oxide

99.99% 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:
1317-61-9
Molecular Weight:
231.53
EC Number:
215-277-5
MDL number:
MFCD00011010
UNSPSC Code:
12352303
PubChem Substance ID:
24874003
NACRES:
NA.23

Assay

99.99% trace metals basis

form

powder

mp

1538 °C (lit.)

density

4.8-5.1 g/mL at 25 °C (lit.)

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, also known as ferric ferrous oxide, with a purity of 99.99% trace metals basis, exhibits unique magnetic, electrical, and catalytic properties. It has density of 4.8-5.1 g/mL at 25 °C and melting point of 1538 °C , which indicates thermal stability and mechanical strength. In the field of biomedical applications, it has shown promise in magnetic resonance imaging (MRI) contrast agents and drug delivery systems due to its magnetic properties and biocompatibility. In the semiconductor industry, iron(II,III) oxide has been investigated for its potential use in spintronics and magnetic tunnel junctions, where its magnetic properties can be utilized for information storage and processing. Additionally, it is being explored for use as an anode material in lithium-ion batteries, offering high theoretical capacity and low cost due to its abundance.

Application


  • Achieving Excellent Dielectric and Energy Storage Performance in Core-Double-Shell-Structured Polyetherimide Nanocomposites.: This study explores the development of polyetherimide nanocomposites incorporating Iron(II,III) oxide for enhanced dielectric properties and energy storage capabilities, showing potential for advanced electrical applications (Yuan et al., 2023).

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

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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Yongxing Hu et al.
Journal of the American Chemical Society, 135(6), 2213-2221 (2013-01-26)
Controlled assembly of nanoparticles into asymmetric configurations is of great interest due to their novel properties and promising applications. In this Article, we report a generic strategy for the synthesis of dimer nanoclusters and asymmetric nanoassemblies by using magnetic colloidal
Jens Baumgartner et al.
Nature materials, 12(4), 310-314 (2013-02-05)
The formation of crystalline materials from solution is usually described by the nucleation and growth theory, where atoms or molecules are assumed to assemble directly from solution. For numerous systems, the formation of the thermodynamically stable crystalline phase is additionally
Marina I Siponen et al.
Nature, 502(7473), 681-684 (2013-10-08)
Magnetotactic bacteria align along the Earth's magnetic field using an organelle called the magnetosome, a biomineralized magnetite (Fe(II)Fe(III)2O4) or greigite (Fe(II)Fe(III)2S4) crystal embedded in a lipid vesicle. Although the need for both iron(II) and iron(III) is clear, little is known
Kaori Kohara et al.
Chemical communications (Cambridge, England), 49(25), 2563-2565 (2013-02-21)
Carboxylated SiO2-coated α-Fe nanoparticles have been successfully prepared via CaH2-mediated reduction of SiO2-coated Fe3O4 nanoparticles followed by surface carboxylation. These α-Fe-based nanoparticles, which are characterized by ease of coating with additional functional groups, a large magnetization of 154 emu per
Lu Zhang et al.
Nanoscale, 5(17), 7664-7684 (2013-07-24)
Superparamagnetic iron oxide nanoparticles (SPIONs) have shown great promise in biomedical applications. In this review, we summarize the recent advances in the design and fabrication of core-shell and hetero-structured SPIONs and further outline some exciting developments and progresses of these
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