Iron Oxide Black Iron Oxide Black: Magnetic Iron Oxide;Magnet
SF325
SF400
SF500
SF600
SF800
Fe3O4 Content ≥%
80-90
Water, ≤%
0.5
Water-Soluble Matter, ≤%
1
Sieve residue (325 Mesh)%
0.3
0.7
2
3
Oil Absorption (ml/100g)
12-18
15-25
pH
5-8
105 ℃ Volatile Content
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.
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