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The Main Application of Iron Trioxide

wallpapers Industry 2020-09-30

Magnetic material

Due to their special superparamagnetism, magnetic iron trioxide particle have the wide ranges of applications in giant magnetoresistance, magnetic fluid and magnetic recording, soft magnetisms, permanent magnetism, magnetic refrigeration, oversized magnetoresistance materials, magneto-optical devices, and magnetic detectors—application prospects. Videotapes generally use acicular iron or iron trioxide magnetic ultrafine particles, and nano-iron trioxide is a new type of magnetic recording material. Soft ferrites have been widely used in the field of radio communications, radio and the television, automatic control, space navigation, radar navigation, measuring instruments, computers, printing, household appliances and the biomedicine.

Pigment field

As a pigment, iron trioxide is widely used in the high-end automotive coatings, architectural coatings, anti-corrosion coatings, and the powder coatings. It is a good, environmentally friendly coatings. The annual consumption of iron trioxide pigments in the world exceeds 1 million tons, second only to titanium oxide, ranking inorganic pigments. The second place. Iron trioxide is used as a pigment, which not only maintains the excellent heat resistance, weather resistance and ultraviolet absorption of available inorganic pigments but also can be well dispersed in oily carrier. The paint or ink prepared with it has good transparency. The coating is made of iron oxide with semiconductor characteristics, which can play a role in electrostatic shielding due to its high conductivity.

Iron oxide is a commonly used colourant in glass production. Iron oxide coloured glass can absorb both the ultraviolet and infrared, so it is widely used in the manufactures of the heat-absorbing glass, sunglasses glass, industrial protective glasses, glass and military anti-infrared coating. At the same time, it has the functions of low price, absorbing hotline and ultraviolet rays.

Besides, iron oxide pigments are also widely used abroad as colourants and protective agents for wood coatings. The use of transparent iron trioxide pigments instead of traditional pigments can retain the apparent wood grain of the wood, and its high light resistance makes furniture colour lasting. Ultraviolet rays in sunlight can decompose wood lignin and destroy cell structure, leading to the wood ageing. Nano iron trioxide pigments, due to their small particle and uniform distribution, will not scatter light and absorb ultraviolet radiation so that they can protect the wood.


α-Fe2O3 powder particles have an enormous specific surface area and significant surface effect, making it a suitable catalysts. Due to the small size of iron trioxide particles, the surface area occupies have a large volume percentage, the bonding and the electronic states of the surface are different from the inside of the particles, and the further coordination of surface atoms leads to an increase in active sites on the surface. The activity and selectivity of the catalyst made of nano α-Fe2O3 particles are higher than that of ordinary stimuli, and it has a long life and easy to be operated. Nano-α-Fe2O3 has been directly used as the catalyst for oxidation, reduction and synthesis of the high molecular polymers. When it is used to petroleum refining, it can increase the cracking speed by 1 to 5 times. Using it as a solid combustion catalysts can make the combustion speed faster. The blazing speeds of ordinary combustion agents is increased by 1 to 10 times, which is very beneficial to the manufacture of the high-performance rockets and missiles.

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Tag: Iron Trioxide