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[Chemical Knowledge]：titanium dioxide use -- encyclopedia

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In our daily life, titanium dioxide is a very common substance. It is not only a white and odorless powder, but also an important chemical substance. It is precisely because titanium dioxide has many superior characteristics that it has a wide range of applications in many fields. In this article, we will explore the uses of titanium dioxide in more depth.

1. the properties of titanium dioxide

titanium dioxide is an inorganic compound, the chemical formula of which is TiO2. In nature, it is mainly found in ilmenite in the Ordos Basin, Australia and South Africa. Titanium dioxide is a white, odorless powder, its density is 4.23g/cm3, melting point is 1,843 degrees, and has high heat resistance, impact resistance, acid and alkali resistance and color retention. These properties determine the multiple uses of titanium dioxide.

2. of titanium dioxide applications

1. Photocatalytic

one of the biggest advantages of titanium dioxide is its photocatalytic performance. Titanium dioxide can absorb ultraviolet rays and generate electron-hole pairs, and react with moisture to generate hydroxyl radicals (OH), which has a certain sterilization and cleaning effect. Therefore, titanium dioxide is widely used in air purification, water treatment, anti-corrosion and self-cleaning and other fields.

2. Electrode ceramic

As an excellent electrode ceramic, titanium dioxide is used in capacitors, electrolytic capacitors, thermocouple containers and other fields. Because of its high dielectric constant, low loss factor and excellent temperature characteristics, it has a wide range of applications in electronic technology.

3. artificial skeleton material

titanium dioxide is one of the artificial skeleton materials using bioactive ceramics. It has excellent biocompatibility and biological safety, and can produce chemical and biological reactions, so that it can be fused with bone tissue to achieve the role of bone repair and reconstruction. Therefore, in the medical field, titanium dioxide is applied to artificial bones, artificial teeth, etc.

4.

of Coatings and Inks Titanium dioxide is widely used in the field of coatings and inks. With its excellent whiteness, hiding power, dispersion and other characteristics, titanium dioxide can play an important role in the manufacture of ink.