Iron Oxide Black | Iron Oxide Black Pigment Iron Oxide | Iron Oxide Black Powder
Product performance:
Physical Properties:
Crystalline solid black, insoluble in water, magnetic, solid has good electrical conductivity.
Wire in the pure oxygen combustion generated ferroferric oxide; (phenomenon: sparks, exothermic, black solid - ferroferric oxide generated. When doing the experiment in the lab attention to experiment to put a layer of fine sand or water in the bottle, the reason is: prevent splash down melt burst bottle!) ; The blue gray clastic mainly scattered around the blacksmith's anvil ferroferric oxide; The steam displacement reaction of iron with high temperature generated ferroferric oxide and hydrogen; The main composition of natural magnetite is ferroferric oxide crystals. Ferroferric oxide is a kind of important common iron compounds. Are stable in the air.
In Fe3O4, iron show two valence, a price of ferrous ions + 2, two iron + 3 valence, so ferroferric oxide were classified as composed with Fe2O3 FeO compounds, can be expressed as FeO · Fe2O3, but can't say with mixture of Fe2O3 FeO, it belongs to pure.
Basic performance:
Say again ferroferric oxide, iron oxide black. Molecular weight 231.54, inverse spinel, cubic crystal system, black solid powder, the density of 5.18 g/cm3. The melting point of 1867.5 K (1867.5 ℃).
Specification:
ITEM NO | Content | Chromatism | Tinctorial strength | Water solubles | PH value | Oil absorption | 105℃ Volatile matter | 1000℃ 0.5h Heat loss |
| Min% | ΔE Max% | Rang% | Max% | Rang | Rang g/100g | Max% | Max% |
722 | 95 | 1.0 | 95~105 | 0.5 | 5~8 | 15~25 | 1.0 | 7 |
724 | 95 | 1.0 | 95~105 | 0.5 | 5~8 | 15~25 | 1.0 | 7 |
726 |
| 1.0 | 95~105 | 0.5 | 5~8 | 15~25 | 1.0 | 7 |
722-1 |
| 1.0 | 95~105 | 0.5 | 5~8 | 15~25 | 1.0 |
|
Main application:




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