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[Chemical Knowledge]：Iron oxide: principle and application technology comprehensive analysis

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The physical properties
of 1. ferric oxide
ferric oxide, also known as iron three oxygen, is a compound composed of three oxygen atoms and two iron atoms, the chemical formula is Fe2O3. It is a stable, non-volatile solid, its appearance is reddish brown powder, in the air has a certain stability.

ferric oxide has a very high melting point and thermal stability. It can be obtained at high temperatures and can also be prepared in silicate melts. In addition, it also has special magnetism and belongs to antiferromagnetic materials. These physical properties provide a good basis for its application.

2. the chemical reaction of ferric oxide

ferric oxide has a variety of chemical reactions, such as reaction with hydrochloric acid, can produce ferric chloride and water, its reaction formula is as follows:

Fe2O3 6HCl → 2FeCl3 3 H2O

In addition, ferric oxide can also react with other compounds, such as reaction with sodium hydroxide can produce ferric hydroxide and sodium salt:

Fe2O3 6NaOH → 2Fe(OH)3 3Na2O

These chemical reactions not only help us understand the properties of ferric oxide, but also can be selected and controlled according to its reaction properties in preparation and application.

3. the application of ferric oxide in materials science

as an important material, ferric oxide is widely used in the field of materials science. Due to its high melting point and thermal stability, it can be used for the preparation of high-temperature ceramics and the reinforcement of refractory materials, as well as as an additive in alloy production.
magnetic properties of
ferric oxide make it can be used as a data storage material, such as hard disk. At the same time, ferric oxide magnetic materials are harmless to the human body and can be used in medical equipment.

4. application of ferric oxide in environmental governance

ferric oxide also has a wide range of environmental applications. In terms of water treatment, ferric oxide can remove organic matter, heavy metals and artificial pigments in sewage, so as to achieve the purpose of purifying water quality. In terms of atmospheric governance, ferric oxide has the effect of photocatalytic decomposition of organic gases and nitrogen oxides, helping us to improve and purify the environment. Application of

5. Ferric Oxide in Biotechnology