Dielectric constant of titanium oxysulfate

Dielectric constant of titanium oxysulfate: Due to the high dielectric constant of titanium dioxide, it has excellent electrical properties. When determining certain physical properties of titanium dioxide, the crystallization direction of titanium dioxide crystals should be considered. For example, the dielectric constant of rutile type varies with the direction of the crystal. When parallel to the C-axis, the measured dielectric constant is 180, and when perpendicular to this axis, it is 90. The average value of its powder is 114. The dielectric constant of rutile titanium dioxide is relatively low, only 48.

Conductivity: Titanium dioxide has semiconductor properties, and its conductivity increases rapidly with temperature, and it is also very sensitive to hypoxia. For example, rutile titanium dioxide is still an electrical insulator at 20 ℃, but when heated to 420 ℃, its conductivity increases by 107 times. Slightly reducing the oxygen content will have a special effect on its conductivity. According to the chemical composition, the conductivity of titanium dioxide (TiO ₂) is less than 10-10s/cm, while the conductivity of TiO1.9995 is as high as 10-1s/cm. The dielectric constant and semiconductor properties of rutile titanium dioxide are crucial for the electronics industry, which utilizes these characteristics to produce electronic components such as ceramic capacitors.

Hardness: According to the 10 point Mohs hardness scale, rutile titanium dioxide has a hardness of 6-6.5 and rutile titanium dioxide has a hardness of 5.5-6.0. Therefore, in chemical fiber extinction, anatase titanium dioxide is used to avoid wear on the nozzle holes.

Melting point and boiling point: Due to the fact that both rutile and perovskite titanium dioxide will transform into garnet at high temperatures, the melting point and boiling point of perovskite and rutile titanium dioxide are actually non-existent. Only rutile titanium dioxide has a melting point and a boiling point. The melting point of rutile titanium dioxide is 1850 ℃, the melting point in air is (1830 ± 15) ℃, and the melting point in oxygen rich is 1879 ℃. The melting point is related to the purity of titanium dioxide. The boiling point of rutile titanium dioxide is (3200 ± 300) K, and at this high temperature, titanium dioxide is slightly volatile.

First, add a certain amount of water at a temperature of 90-100 ℃ to the atmospheric hydrolysis pot, then add a titanium solution containing 2% seed crystals with a TiO2 concentration of 240-260g/L and an F of 1.75-1.95, and preheat it to 90-100 ℃. Start stirring and within 20 minutes, add the titanium solution to the hydrolysis pot in a volume ratio of 100 to boiling water (20-30). When adding titanium solution to water, white turbidity appears due to dilution in the first 1 minute, indicating that colloidal TiO2 has been generated. Continue adding titanium solution, the turbidity disappears. This is because under stirring, it is uniformly dispersed in the continuously added titanium solution, which cannot be distinguished by the naked eye. At this point, the temperature can be appropriately raised to around 103 ℃. After about 10 minutes, the turbidity reappears, indicating that a large amount of colloidal TiO2 has been generated. When the colloidal suspension emits milky light without precipitation, the colloidal TiO2 content reaches a high value and its activity is also high. But at this time, colloidal TiO2 is unstable and prone to precipitation, so it is necessary to immediately add the main titanium solution to be hydrolyzed.

Titanium oxysulfate is soluble in water. Titanium oxysulfate can dissolve completely by adding water, even without stirring or heating, and can be left for a day. During experimental operation, appropriate heating can be used, but the temperature should be controlled. White titanium sulfate will dissolve and become clear. If heating is continued or the temperature is too high, it will undergo hydrolysis and produce a white substance. This process is irreversible.