Physical Properties Occurrence and Uses Preparation Reactions
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Triiron tetraoxide

Physical Properties Occurrence and Uses Preparation Reactions
Product Name
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
Formula Weight
231.53
MOL File
1317-61-9.mol
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Triiron tetraoxide Property

Melting point:
1538 °C(lit.)
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)
NIST Chemistry Reference
Iron(ii,iii) oxide(1317-61-9)
EPA Substance Registry System
Iron oxide (Fe3O4) (1317-61-9)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26
RIDADR 
3
WGK Germany 
-
TSCA 
Yes
HS Code 
28211000
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H225Highly Flammable liquid and vapour

H304May be fatal if swallowed and enters airways

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

H336May cause drowsiness or dizziness

H373May cause damage to organs through prolonged or repeated exposure

H411Toxic to aquatic life with long lasting effects

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P273Avoid release to the environment.

P281Use personal protective equipment as required.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P331Do NOT induce vomiting.

P405Store locked up.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
310069
Product name
Iron(II,III) oxide
Purity
powder, <5μm, 95%
Packaging
25g
Price
$48.6
Updated
2024/03/01
Sigma-Aldrich
Product number
310069
Product name
Iron(II,III) oxide
Purity
powder, <5μm, 95%
Packaging
500g
Price
$363
Updated
2024/03/01
Sigma-Aldrich
Product number
51238
Product name
Magnetic iron oxide nanoparticles solution
Purity
0.3-0.7% Fe basis, 2.5-3.5% solids basis
Packaging
1ML
Price
$115
Updated
2022/05/15
Sigma-Aldrich
Product number
51238
Product name
Magnetic iron oxide nanoparticles solution
Purity
0.3-0.7% Fe basis, 2.5-3.5% solids basis
Packaging
5ML
Price
$266
Updated
2022/05/15
Alfa Aesar
Product number
012374
Product name
Iron(II,III) oxide, 97% (metals basis)
Packaging
5kg
Price
$157
Updated
2024/03/01
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Triiron tetraoxide Chemical Properties,Usage,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

solid

Chemical Properties

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

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

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

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 %

Triiron tetraoxide Preparation Products And Raw materials

Raw materials

Iron filings Ferric oxide Iron Oxide Black FERROUS SULFATE Sodium hydroxide Iron Pigment Yellow 42 Ferrous sulfate heptahydrate Sulfuric acid Ammonia

Preparation Products

iron oxide,brown for pharmaceutical iron oxide，purple for pharmaceutical AMMONIA SYNTHESIS CATALYST
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Triiron tetraoxide Suppliers

China 245 Denmark 1 Europe 3 France 1 Germany 3 India 11 South Korea 2 Switzerland 1 United Kingdom 5 United States 27 Global 299
Avonchem/Chromos Express Ltd.
Tel
--
Fax
--
Email
info@avonchem.co.uk
Country
United Kingdom
ProdList
1189
Advantage
50
Leancare Ltd.
Tel
--
Fax
--
Email
enquiry@leancare.co.uk
Country
United Kingdom
ProdList
6446
Advantage
42
MOLEKULA Ltd.
Tel
--
Fax
--
Email
kevinbanks@molekula.com
Country
United Kingdom
ProdList
6140
Advantage
66
ABSCO Materials
Tel
--
Fax
--
Email
enquiries@abscomaterials.com
Country
United Kingdom
ProdList
911
Advantage
55
ABSCO Ltd
Tel
--
Fax
--
Email
enquiries@abscomaterials.com
Country
United Kingdom
ProdList
911
Advantage
66
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View Lastest Price from Triiron tetraoxide manufacturers

Hebei Longbang Technology Co., Ltd
Product
Triiron tetraoxide 1317-61-9
Price
US $6.00/kg
Min. Order
1kg
Purity
More than 99%
Supply Ability
2000KG/Month
Release date
2024-06-07
Hebei Weibang Biotechnology Co., Ltd
Product
Triiron tetraoxide 1317-61-9
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-30
Hebei Yanxi Chemical Co., Ltd.
Product
Triiron tetraoxide 1317-61-9
Price
US $30.00-9.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
10 tons
Release date
2023-10-16

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