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ChemicalBook >> CAS DataBase List >>Triiron tetraoxide

Triiron tetraoxide

CAS No.
1317-61-9
Chemical Name:
Triiron tetraoxide
Synonyms
MAGNETITE;BLACK IRON OXIDE;PIGMENT BLACK 11;Black Ferric Oxide;Iron oxide (Fe3O4);IRON(II,III) OXIDE;FexOy;E 172;Fe3-O4;triiron
CBNumber:
CB7752940
Molecular Formula:
Fe3O4-2
Molecular Weight:
231.53
MDL Number:
MFCD00011010
MOL File:
1317-61-9.mol
MSDS File:
SDS
Last updated:2025-04-29 17:45:46

Triiron tetraoxide Properties

Melting point 1538 °C(lit.)
bulk density 0.84g/mL
Density 4.8-5.1 g/mL at 25 °C(lit.)
refractive index 3.0
Flash point 7 °C
storage temp. -20°C
solubility Aqueous Acid (Slightly)
form powder
color black
Specific Gravity 5.2
Odor at 100.00?%. odorless
Water Solubility Insoluble in water and organic solvents. Soluble in concentrated mineral acids.
Crystal Structure Inverse spinel type
crystal system Cube
Merck 14,4040
Space group Fd3m
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.839410.839410.839419090900.5915
Stability Stable. Incompatible with strong acids, chloroformates, peroxides.
CAS DataBase Reference 1317-61-9(CAS DataBase Reference)
FDA 21 CFR 582.80
FDA UNII XM0M87F357
NIST Chemistry Reference Iron(ii,iii) oxide(1317-61-9)
EPA Substance Registry System Iron oxide (Fe3O4) (1317-61-9)
UNSPSC Code 12352303
NACRES NA.25

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictogramsGHS hazard pictogramsGHS hazard pictograms
GHS02,GHS07,GHS08,GHS09
Signal word  Danger
Hazard statements  H225-H304-H315-H336-H361d-H373-H411-H319-H335
Precautionary statements  P210-P261-P273-P281-P301+P310-P331-P280a-P304+P340-P305+P351+P338-P405-P501a
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26
RIDADR  3
WGK Germany  -
TSCA  Yes
HS Code  28211000
NFPA 704
0
0 0

Triiron tetraoxide price More Price(68)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 310069 Iron(II,III) oxide powder, <5μm, 95% 1317-61-9 25g $48.6 2024-03-01 Buy
Sigma-Aldrich 310069 Iron(II,III) oxide powder, <5μm, 95% 1317-61-9 500g $363 2024-03-01 Buy
Sigma-Aldrich 51238 Magnetic iron oxide nanoparticles solution 0.3-0.7% Fe basis, 2.5-3.5% solids basis 1317-61-9 1ML $115 2022-05-15 Buy
Sigma-Aldrich 51238 Magnetic iron oxide nanoparticles solution 0.3-0.7% Fe basis, 2.5-3.5% solids basis 1317-61-9 5ML $266 2022-05-15 Buy
Alfa Aesar 012374 Iron(II,III) oxide, 97% (metals basis) 1317-61-9 5kg $157 2024-03-01 Buy
Product number Packaging Price Buy
310069 25g $48.6 Buy
310069 500g $363 Buy
51238 1ML $115 Buy
51238 5ML $266 Buy
012374 5kg $157 Buy

Triiron tetraoxide Chemical Properties,Uses,Production

Physical Properties

Black cubic crystal or amorphous powder; refractive index 2.42; density 5.17 g/cm3; Moh’s hardness 6.0; melts at 1,597°C; insoluble in water, soluble in acids.

Occurrence and Uses

Triiron tetroxide occurs in nature as the mineral magnetite, the magnetic oxide of iron. This mineral along with hematite is used as the starting material for producing iron, steel and other ferro-alloys.

Preparation

Triiron tetroxide is obtained from its natural mineral magnetite. In the laboratory the compound may be prepared by adding sodium hydroxide solution to an aqueous solution of 1:2 molar mixture of ferrous and ferric salt. (i.e., 1 mol FeCl2 + 2 mol FeCl3). The resulting black precipitate of the hydroxide on heating dehydrates to gives triiron tetroxide:
Fe2+(aq) + 2Fe3+(aq) + 8OH¯(aq) → Fe3(OH)8(s)
Fe3(OH)8(s) → Fe3O4(s) + 4H2O(g)
Also, the tetroxide may be produced by partial oxidation of iron or iron(II) sulfate by heating under limited amount of air. Another method of production involves heating iron metal with steam:
3Fe + 4H2O → Fe3O4 + 4H2

Reactions

Triiron tetroxide, when heated at elevated temperatures with a reducing agent such as hydrogen or carbon monoxide in the absence of air, produces metallic iron:
Fe3O4 + 4H2 → 3Fe + 4H2O
Partial reduction gives iron(II) oxide. When treated with concentrated acids, the tetroxide dissolves in acids forming mixtures of iron(II) and iron(III) salts:
Fe3O4 + 8HCl → FeCl2 + 2FeCl3 + 4H2O
Fe3O4 + 4H2SO4 → FeSO4 + Fe2(SO4)3 + 4H2O

Chemical Properties

Magnetite (Fe3O4) constitutes the richest ore of iron; it is black and magnetic, one variety being called "lodestone".

Chemical Properties

solid

Uses

Iron(II,III) oxide (Fe3O4) can be used as a heterogeneous catalyst for the Fenton type oxidation of rhodamine B. It can be used as an anode material for the fabrication of lithium-ion batteries. Fe3O4 can also be utilized in the catalysis of the oxygen reduction reaction (ORR) in the anion exchange membrane fuel cell.

Uses

Mostly it is used as a black- pigment -catalyst in the Haber process and in the water gas shift reaction. It is used as a contrast-agent in MRI scanning, whereas it is used as a pigment in magnetic applications, polishing compounds, cosmetics, medicines, polymer, rubber, filler, building, construction, appliances, and magnetic inks.

Uses

Triiron tetraoxide can be used as pigment in paints, linoleum, ceramic glazes; in coloring glass; as a polishing compound; in the textile industry; in cathodes; as catalyst.

General Description

Concentration 5mg/ml includes total weight nanocrystals plus ligands.

Flammability and Explosibility

Non flammable

Properties and Applications

TEST ITEMS

SPECIFICATION

APPEARANCE

BLACK POWDER

CONTENT OF Fe 3 O 4

90% min

pH VALUE

5-8

DENSITY

4.5 g/ml

SHADE

CLOSE TO STANDARD

OIL ABSORPTION

10-20%

RESIDUE ON 320 MESH

0.3% max

WATER SOLUBLE

0.3% max

VOLATITE 105 °C

1.0% max

TINTING STRENGTH

98-102 %

Global( 323)Suppliers
Supplier Tel Email Country ProdList Advantage
Shaanxi Dideu Medichem Co. Ltd 		+86-29-81148696 +86-15536356810 1022@dideu.com China 3883 58
Hebei Yanxi Chemical Co., Ltd. 		+8617531153977 allison@yan-xi.com China 5853 58
Hebei Chuanghai Biotechnology Co., Ltd 		+8615531151365 mina@chuanghaibio.com China 18132 58
Hebei Kingfiner Technology Development Co.Ltd 		+86-15532196582 +86-15373005021 lisa@kingfinertech.com China 3005 58
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Hebei Zhuanglai Chemical Trading Co Ltd 		+86-16264648883 +86-16264648883 niki@zlchemi.com China 7245 58
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21628 55
career henan chemical co 		+86-0371-86658258 +8613203830695 sales@coreychem.com China 29856 58
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Neostar United (Changzhou) Industrial Co., Ltd. 		+86-0519-85551759 +8613506123987 marketing1@neostarunited.com China 8830 58

View Lastest Price from Triiron tetraoxide manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Triiron tetraoxide pictures 2025-05-18 Triiron tetraoxide
1317-61-9
 0.99 RongNa Biotechnology Co.,Ltd
Triiron tetraoxide pictures 2025-05-16 Triiron tetraoxide
1317-61-9
 US $45.00 / kg 1kg 99% 20 tons Hebei Zhuanglai Chemical Trading Co Ltd
Triiron tetraoxide pictures 2025-04-15 Triiron tetraoxide
1317-61-9
 US $0.00-0.00 / KG 1KG 99% 500000kg Hebei Chuanghai Biotechnology Co., Ltd

Triiron tetraoxide Spectrum

Iron(II,III) oxide, 98% (metals basis) Iron(II,III) oxide, 97% (metals basis) Iron(II,III) oxide, 99.95% (metals basis) Iron(II,III) oxide: (Ferrosoferric oxide: Iron(III) oxide) Iron (II, III) oxide, 99.5% min (metals basis) Iron (II,III) oxide, 96% (metals basis) Synthetic black iron oxide Iron(II,III) oxide, Puratronic, 99.997% (metals basis) Iron oxide, magnetic nanoparticles solution Magnetite, Superparamagnetic iron oxide nanoparticles Iron(II,III) oxide solution Iron(II,III) oxide, black (Magnetite) Monodispersed Magnetite Microspheres Magnetic sand concentrate Iron oxide(II,III), Magnetic nanoparticles solution 10 nM avg. part. size, 5 Mg/ML in H2O Iron oxide(II,III), Magnetic nanoparticles solution 20 nM avg. part. size, 5 Mg/ML in H2O Iron oxide(II,III), Magnetic nanoparticles solution 20 nM avg. part. size, 5 Mg/ML in toluene Iron oxide(II,III), Magnetic nanoparticles solution 5 nM avg. part. size, 5 Mg/ML in H2O Iron(II,III) oxide nanopowder, 50-100 nM particle size (TEM), 97% trace Metals basis Iron(II,III) oxide powder, <5 MuM, 95% Fe NP COOH Fe NP NH2 FexOy Iron(II,III) Oxide, Nanopowder, <50NM, 98+% Metal Basis Fe NP NHS Iron oxide(II,III) magnetic nanopowder Monodisperse hydrophilic Fe3O4 nanoparticles Iron oxide(II,III), magnetic nanoparticles solution 10 nm avg. part. size, 5 mg/mL in toluene Iron oxide(II,III), magnetic nanoparticles solution 10 nm diameter, amine functionalized, 1 mg/mL Fe, dispersion in H2O Iron oxide(II,III), magnetic nanoparticles solution 10 nm diameter, carboxylic acid functionalized, 5 mg/mL Fe, dispersion in H2O Fe NP PEG Fe NP Biotin iron oxkle，blacK for pllarmaceutical Iron(II,III) oxide, black (Magnetite), min. 95% Superparamagnetic iron oxide nanoparticles Iron(II,III) oxide (metals basis) "Iron(II, III) oxide/ 97%" Iron(II,III) oxide,Magnetite Iron oxide, magnetic nanoparticles solution,Magnetic iron oxide nanocrystals, Magnetite, Superparamagnetic iron oxide nanoparticles NO 0007, 50 g Iron(II,III)oxide powder, 9 nm, 99.5% Iron(II,Ⅲ) oxide Iron(II,III) oxide (Magnetite) magnetic fluid in kerosene with oleic acid [15-18 vol%, Ms = 50-70 kA/m] Iron(II,III) oxide (Magnetite) magnetic fluid in kerosene with oleic acid [20-23 vol%, Ms = 75-85 kA/m] Iron(II,III) oxide (Magnetite) magnetic fluid in kerosene with oleic acid [7-9 vol%, Ms = 35-45 kA/m] Iron(II,III) oxide (Magnetite) aqueous Magnetic fluid [3.5 vol%, Ms = 15-16 kA/M] Iron(II,III) oxide (Magnetite) aqueous Magnetic fluid [7.0 vol%, Ms = 30-31 kA/M] Iron oxide(II,III), magnetic nanoparticles solution 10 nm diameter, PEG functionalized, 1 mg/mL Fe, dispersion in H2O Iron oxide(II,III), magnetic nanoparticles solution 30 nm diameter, amine functionalized, 1 mg/mL Fe, dispersion in H2O Iron oxide(II,III), magnetic nanoparticles solution 30 nm diameter, PEG functionalized, 1 mg/mL Fe, dispersion in H2O Iron oxide(II,III), magnetic nanoparticles solution 5 nm diameter, amine functionalized, 1 mg/mL Fe, dispersion in H2O Iron oxide(II,III), magnetic nanoparticles solution 5 nm diameter, PEG functionalized, 1 mg/mL Fe, dispersion in H2O Iron(II,III) oxide 99.99% trace metals basis Iron(II,III) oxide nanopowder, 50-100 nm particle size (SEM), 97% trace metals basis Iron oxide(II,III) Iron(II,III) oxide, 97% trace metals basis Iron(II,III) oxide, 99.995% trace metals basis Iron(II,III) oxide, 20-30nm APS Powder, 98% trace metals basis Black rouge Ethiops iron