The difference in properties between rutile titanium dioxide and anatase titanium dioxide.
Release time:
2022-07-14
Differences in properties between rutile titanium dioxide and anatase titanium dioxide
1) Has an internal crystal structure
Titanium dioxide has three different crystal structures, namely rutile titanium dioxide,anatase titanium dioxideand brookite titanium dioxide, which are all different. Among them, rutile titanium dioxide has the most stable crystal structure, while brookite titanium dioxide has a rarely used crystal structure. This is mainly due to its unstable internal crystal structure, making it unable to be stably preserved in nature for a long time.
2) Melting point and boiling point
The melting point and boiling point of anatase titanium dioxide do not actually exist, because anatase titanium dioxide will convert to rutile at high temperatures. Only rutile titanium dioxide has a melting point and boiling point. The melting point of rutile titanium dioxide is 1850℃, the melting point of air is (1830±15)℃, and the melting point of oxygen-rich titanium dioxide is 1879℃. The melting point is related to the purity of titanium dioxide. The boiling point of rutile titanium dioxide is (320 anatase titanium dioxide 300)℃, which has slight volatility at this high temperature.
3) Dielectric constant
Titanium dioxide has excellent electrical properties due to its high dielectric constant. When measuring certain physical properties of titanium dioxide, the crystallographic direction of the titanium dioxide crystal must be considered. The dielectric constant of anatase titanium dioxide is relatively low, only 48.
4) Conductivity
As a semiconductor, the conductivity of titanium dioxide increases rapidly with temperature and is very sensitive to oxygen deficiency. The dielectric constant and semiconductor properties of rutile titanium dioxide are very important for the electronics industry and can be used to produce electronic components such as ceramic capacitors.
5) Hardness
According to the hardness scale of the oak tree, rutile titanium dioxide is rated at 6~6.5. Anatase titanium dioxide is rated at 55~60. Therefore, anatase titanium dioxide is used in synthetic fiber matting to avoid wear on the spinneret holes.
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Key words: tengxian titanium dioxide, titanium dioxide, rutile, titanium dioxide manufacturers, anatase titanium dioxide, titanium dioxide manufacturers, anatase titanium dioxide, rutile titanium white
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