The performance and application of iron oxide

Overview of iron oxide Fe2O3 powder

Iron oxide is an inorganic compound with the chemical formula Fe2O3. It is one of the three main iron oxides, the other two are the rare ferrous oxide (FeO); and ferroferric oxide (Fe3O4), which occurs naturally as the mineral magnetite. Iron oxide is also called hematite. It is the main source of iron in steelmaking and is susceptible to acid corrosion. Iron oxide is often called rust. In some cases, this is not a problem, because rust has several common features and similar components. For chemists, rust is an undefined substance called hydrated iron oxide. Fe2O3 has many crystal types. Among the main α and γ configuration iron oxides, iron has a six-coordinate octahedral structure.

Iron oxide Fe2O3 powder is red or dark red amorphous powder. Insoluble in water, soluble in hydrochloric acid and sulfuric acid, slightly soluble in nitric acid. It has strong hiding power and tinting power, impervious to oil and water. It is stable in the atmosphere and sunlight, resistant to polluting gases, high temperature and alkali. The fineness of the products produced by the dry process is usually less than 1 micron. Stable to light, heat and air. Relatively stable to acids and alkalis. Strong tinting power. The refractive index is 3.042. The dry processed products of this product have coarse and hard crystal particles, which are suitable for magnetic materials, polishing materials and abrasive materials. Wet-processed products have fine and soft crystal particles, which are suitable for coating and ink industries.

The performance and application of iron oxide

Iron oxide Fe2O3 powder can be widely used for the coloring of artificial marble and colored cement. Its pigments include watercolor, paint, paint, rubber, and plastic colors, and can also be used in the magnetic material industry.

Magnetic material

Due to its special superparamagnetism, magnetic iron oxide particles have a wide range of fields, such as giant magnetoresistance, magnetic fluid and magnetic recording, soft magnetism, permanent magnet, magnetic refrigeration, giant magnetoresistance materials, magneto-optical devices and magnetic detectors. prospect. Video tapes usually use acicular iron or iron oxide magnetic ultrafine particles, and nano-iron oxide is a new type of magnetic recording material. Soft ferrites have been widely used in radio communications, radio and television, automatic control, aerospace navigation, radar navigation, measuring instruments, computers, printing, household appliances, and biomedical fields.

Pigment field

Iron oxide Fe2O3 powder is widely used as a pigment for high-end automotive coatings, architectural coatings, anti-corrosion coatings and powder coatings. It is a good environmentally friendly coating. The annual consumption of iron oxide pigments in the world exceeds 1 million tons, which is second only to titanium dioxide and ranks among inorganic pigments. second. Iron oxide is used as a pigment, which not only maintains the good heat resistance, weather resistance and ultraviolet absorption of ordinary inorganic pigments, but also can be well dispersed in the oily carrier. The paint or ink prepared with it has satisfactory transparency. Due to its high conductivity, the use of iron oxide with semiconductor characteristics to make a coating can play a role in electrostatic shielding.

Iron oxide Fe2O3 powder is a commonly used colorant in glass production. Iron oxide colored glass can absorb both ultraviolet rays and infrared rays, so it is widely used in the manufacture of heat-absorbing glass, sunglasses glass, industrial protective glass and military anti-infrared coatings. At the same time, it has the function of low price, heat absorption and UV protection

In addition, iron oxide pigments are also widely used as colorants and protective agents for wood coatings abroad. Using transparent iron oxide pigments instead of traditional pigments can retain the transparent wood grain of the wood, and its high light resistance makes the color of the furniture lasting. Ultraviolet rays under the sun will decompose wood lignin, destroy the cell structure, and cause wood aging. Nano iron oxide pigments, due to their small particles and uniform distribution, will not scatter light and absorb ultraviolet rays, so they can protect wood.

catalytic

α-Fe2O3 powder particles have a huge specific surface area and significant surface effect, making it a good catalyst. Due to the small size of iron oxide particles, the surface area occupies a larger volume percentage, and the bonding and electronic state of the surface is good. Different from the internal bonding and electronic state of the particles, the coordination of surface atoms is different, resulting in an increase in the surface active sites of iron oxide. The catalyst made of nano α-Fe2O3 particles has higher activity and selectivity than ordinary catalysts, long life, and convenient operation. Nano α-Fe2O3 has been directly used as a catalyst for the oxidation, reduction and synthesis of high molecular polymers. When used in petroleum refining, it can increase the cracking speed by 1-5 times. Using it as a solid combustion catalyst can accelerate the combustion speed and increase the combustion speed of ordinary combustion aids by 1 to 10 times, which is very beneficial to the manufacture of high-performance rockets and missiles.

Biomedicine and other fields

Nano iron oxide plays an important role in this field

Iron oxide Fe2O3 powder price

The price of iron oxide Fe2O3 powder will vary with random factors such as production cost of iron oxide Fe2O3 powder, transportation cost, international situation and market supply and demand for iron oxide Fe2O3 powder. Tanki New Materials Co., Ltd. aims to help various industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for iron oxide Fe2O3 powder, please feel free to send an inquiry to get the latest price of iron oxide Fe2O3 powder.

Iron oxide Fe2O3 powder supplier

As a global supplier of iron oxide Fe2O3 powder, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering materials. The company has successfully developed a series of powder materials (including boron carbide, aluminum carbide, titanium carbide, etc.), high-purity targets, functional ceramics and structural devices, and provides OEM services.