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Merck

310069

Iron(II,III) oxide

powder, <5 μm, 95%

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
NACRES:
NA.23
PubChem Substance ID:
24858770
UNSPSC Code:
12352303
EC Number:
215-277-5
MDL number:
MFCD00011010

Key Documents

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InChI key

SZVJSHCCFOBDDC-UHFFFAOYSA-N

InChI

1S/3Fe.4O

SMILES string

O=[Fe].O=[Fe]O[Fe]=O

assay

95%

form

powder

particle size

<5 μm

mp

1538 °C (lit.)

density

4.8-5.1 g/mL at 25 °C (lit.)

application(s)

battery manufacturing

Quality Level

200

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General description

Iron(II,III) oxide is an earth-abundant magneticoxide that has a high specific surface area, and good dispersion. The presenceof Fe3+ and Fe2+ with equal numbers in the Fe3O4structure provides higher light absorption and as a result superiorelectrocatalytic activities and high performance in solar cells compared toother iron oxides.

Application

Iron(II,III) oxide can be used as:
  • A starting material to synthesize Ca2Fe2O5 (srebrodolskite) microspheres via a single-stage flame spheroidisation (FS) process.
  • A catalyst for reverse water gas shift reactions(RWGS).

Storage Class

11 - Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

310069-BULK: + 310069-2.5KG:4548173928241 + 310069-25G:4548173928258 + 310069-500G:4548173928265 + 310069-VAR:

jan

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Certificates of Analysis (COA)

Lot/Batch Number
MKCP3084
MKCM2969
MKCL2153
MKCH9933
MKCH5599

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Miloch Marjanovic et al.
Water research, 140, 220-231 (2018-05-02)
In this work, solar disinfection (SODIS) was enhanced by moderate addition of Fe and sodium peroxydisulfate (PDS), under solar light. A systematic assessment of the activating factors was performed, firstly isolated, then in pairs and concluded in the combined Fe/heat/solar
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
Maoquan Chu et al.
Biomaterials, 34(16), 4078-4088 (2013-03-08)
The photothermal effect of Fe3O4 magnetic nanoparticles is investigated for cancer therapy both in vitro and in vivo experiments. Heat is found to be rapidly generated by red and near-infrared (NIR) range laser irradiation of Fe3O4 nanoparticles with spherical, hexagonal and wire-like
Tsung-Ju Li et al.
Biomaterials, 34(32), 7873-7883 (2013-07-24)
We present an approach for synchronizing hyperthermia and thermal-responsive local drug release. The targeting probe has a magnetite nanocrystal (Fe₃O₄@PSMA) core and a polynucleotide shell that carries 5-fluorouracil (5-FU) and anti-human epidermal growth factor receptor 2 (anti-HER2) antibody for cancer
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