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Specifications

 

Iron Oxide Black
Iron Oxide Black: Magnetic Iron Oxide;Magnet

 

Item
SF325
SF400
SF500
SF600
SF800
Fe3O4 Content ≥%
80-90
80-90
80-90
80-90
80-90
Water, ≤%
0.5
0.5
0.5
0.5
0.5
Water-Soluble Matter, ≤%
1
1
1
1
1
Sieve residue (325 Mesh)%
0.3
0.7
1
2
3
Oil Absorption (ml/100g)
12-18
12-18
15-25
15-25
15-25
pH
5-8
5-8
5-8
5-8
5-8
105 ℃ Volatile Content
1
1
1
1
1
Molecular formular: Fe3O4
Molecular Weight: 231.53
Properties: Black or black red powder, insoluble in water, alcohol; soluble in concentrated acid, hot strong acids, Melting Point:1594℃, Relative Density: 5.18
Applications: It is widely applied to color of building material, water color, greasepaint, applied to making alnico in electronics and telecommunication, and applied to steel defect detection in battery and mechanical industry.
Package: 25kg PP bag