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Triiron Tetraoxide CAS #1317-61-9

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Chemical Name：Triiron Tetraoxide

CAS No.:1317-61-9

Molecular Formula:Fe3O4-2

Molecular weight:231.53

Sample: Available

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Product Details

Products Description of Direct Triiron Tetraoxide CAS #1317-61-9

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

Triiron Tetraoxide CAS #1317-61-9

Triiron tetraoxide Chemical Properties

Melting point	1538 °C(lit.)
density	4.8-5.1 g/mL at 25 °C(lit.)
refractive index	3.0
Fp	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/nm30.839410.839410.839419090900.5915
Stability:	Stable. Incompatible with strong acids, chloroformates, peroxides.
CAS DataBase Reference	1317-61-9(CAS DataBase Reference)
NIST Chemistry Reference	Iron(ii,iii) oxide(1317-61-9)
EPA Substance Registry System	Iron oxide (Fe3O4) (1317-61-9)

Product Application of Direct Triiron Tetraoxide CAS #1317-61-9

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.

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