Iron Oxide Black
Molecular formula: Fe3O4
Molecular weight: 231.54
CAS No.:12227-89-3
Physical property:
It has saturated blue ink light and black, high hiding power, strong coloring power, good light resistance, weather resistance, rust prevention and UV resistance. It is very suitable for coloring outdoor instruments and can ensure bright colors for a long time. It is easy to be oxidized at high temperature, and will not produce any environmental pollution in the process of use. Moreover, iron oxide black can be perfectly mixed with most solvents and media, which is convenient to use.
Purpose:
1. Used in the field of automobile braking, as a high-precision fine grinding material, it is a common magnetic material;
2. Used for polishing optical glass of precision hardware instruments;
3. Used for coloring paint, ink, architectural coatings, building materials, watercolor and oil paint;
4. Used for steel flaw detection in electronic and telecommunication manufacturing, magnetic steel, battery and machinery industry;
5. It is the main raw material for the production of iron catalyst (a catalyst);
6. Iron oxide black has a large ratio and strong magnetism, so it is used in sewage treatment with excellent performance;
7. It is used to prevent or slow down the corrosion of steel, such as bluing and blackening of the surface of guns and saw blades.
Iron oxide black is a black powder. It is an adduct of iron oxide and ferrous oxide. Generally, the content of ferrous oxide is very high and the covering power is very high. Coloring power is great, but not as good as carbon black. It has a stable effect on the sun and the atmosphere. Resistant to all alkalis, but soluble in acid and has strong magnetism. Calcined in the presence of sufficient air, it is easy to be oxidized to iron oxide red. It is mainly used for making primer and finish paint, and also used as antirust agent in construction industry. High purity is an excellent magnetic material, which is used to coat audio tapes. As an important iron pigment, iron oxide black is widely used in watercolor and ink. The main raw material of magnetic toner for copier is needle iron oxide black. In addition, iron oxide black can also be used in the production of high-grade cosmetics because of its non-toxic and pollution-free characteristics.
IUPAC
oxoiron;oxo(oxoferriooxy)iron
SMILES
O=[Fe].O=[Fe]O[Fe]=O