Synthesis
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Iron oxide black

Synthesis
Product Name
Iron oxide black
CAS No.
1309-38-2
Chemical Name
Iron oxide black
Synonyms
h3s;kn320;rb-bl;E 172;ept500;ironblack;MAGNETITE;11557black;meramecm25;blackironbm
CBNumber
CB9752939
Molecular Formula
Fe3O4
Formula Weight
231.53
MOL File
1309-38-2.mol
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Iron oxide black Property

Melting point:
1538 °C(lit.)
Density 
4.8-5.1 g/mL at 25 °C(lit.)
solubility 
DMSO:0.0(Max Conc. mg/mL);0.0(Max Conc. mM)
form 
powder
Specific Gravity
1.19
EPA Substance Registry System
Magnetite (Fe3O4) (1309-38-2)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36/37/39
WGK Germany 
-
TSCA 
Yes
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P330Rinse mouth.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Usbiological
Product number
454139
Product name
Magnetite
Packaging
10g
Price
$403
Updated
2021/12/16
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Iron oxide black Chemical Properties,Usage,Production

Synthesis

Ferrous sulfate oxidation method: add enough 30% sodium hydroxide to the solution containing ferrous sulfate 150g/L under stirring, so that 40% of iron is precipitated as Fe3+(OH)3, and at the same time at 30 ~ 35 ℃, pass through. Air oxidizes Fe2+ to Fe3+, and the pH value drops from 6 to 3.5, forming a crystal nucleus. Then add ferrous sulfate (14 times that of the crystal nucleus), adjust the pH value to 4 with sodium hydroxide, then oxidize at 80 ℃ with air, and then spray dry to obtain goethite iron oxide. The above-mentioned iron oxide is placed in a converter, passed into a hydrogen stream containing 20% water vapor, heated at 425 to 450 ° C, and then heated at 100 to 150 ° C in a nitrogen stream containing 10% air to obtain a ferrous oxide containing ferrous oxide. 28% iron oxide black pigment, the particle length and width are 0.7μm and 0.5μm respectively, the specific surface area is 8m2/g, and the tinting strength is as high as 180%.

Chemical Properties

Black mineral, black streak, submetallic or dull to metallic luster. Contains 72.4% iron. Readily recognized by strong attraction by magnet. Soluble in powder form in hydrochloric acid. Decomposes at 1538C to ferric oxide Fe2O3.

Chemical Properties

MAGNETITE ,The mineral magnetite, ferroferric oxide, Fe3O4, is isometric, commonly occurring in octahedrons, dodecahedrons, and massive, granular, and laminated forms. It is brittle with an uneven fracture; cleavage is not distinct, but with pressure an octahedral parting may develop; hardness, 5.5–6.5; specific gravity, 5.18; luster, metallic to dull; color, iron black, streak, black. It is opaque and strongly magnetic; when possessing polarity it is known as lodestone.

Uses

Black iron oxide (Fe3O4) is a synthetic inorganic pigment, produced by oxidation of iron (II) hydroxide obtained from the action of alkali on iron (II) sulfate solution. The composition of the pigment corresponds with that of magnetite. The pigment is of fine texture, but has only low tinting strength in paint and other coatings. It is mainly used as a colorant in fillers, primers, and undercoats. The major black pigments in the paint industry are carbon blacks.

Uses

Diagnostic aid, magnetic resonance imaging (MRI); treatment of iron deficiency.

Structure and conformation

Fe3O4, magnetite [1309-38-2], also has a spinel structure, and has a black color.

Iron oxide black Preparation Products And Raw materials

Raw materials

Iron oxide black pigment Iron oxide IRON (II) OXIDE Ferrous sulfate heptahydrate

Preparation Products

ammonia synthesis Fe catalysts AMMONIA SYNTHESIS CATALYST
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Iron oxide black Suppliers

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View Lastest Price from Iron oxide black manufacturers

Hebei Zhanyao Biotechnology Co. Ltd
Product
Iron oxide black 1309-38-2
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
20 tons
Release date
2021-10-19
Career Henan Chemical Co
Product
Iron oxide black 1309-38-2
Price
US $8.80/KG
Min. Order
1KG
Purity
97%-99%
Supply Ability
100kg
Release date
2019-07-12

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