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Iron Oxide Black
|
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 |
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Iron Oxide Black
|
Item
|
Technical Data
|
Inspection Value
|
Conclusion
|
|
No.
|
Fe3O4
|
Fe3O4
|
|
|
Appearance
|
Powder
|
Powder
|
Up to grade
|
|
Color (compared with the standart sample)
|
similar
|
similar
|
Up to grade
|
|
Tingting Strength, %
|
95-100
|
100
|
Up to grade
|
|
Water soluble, %
|
≤0.5
|
0.4
|
Up to grade
|
|
Moisture, %
|
≤1.0
|
1.0
|
Up to grade
|
|
PH Value
|
5-8
|
6
|
Up to grade
|
|
Oil absorbtion,%
|
15-25
|
23
|
Up to grade
|
|
Residual 325 mesh
|
≤0.3
|
0.3
|
Up to grade
|
|
Fe3O4, %
|
≥95
|
96
|
Up to grade
|
|
|
| |
|
|
