Do you know rutile titanium dioxide

 Some minerals products, we will generally look at its composition , physical properties and chemical properties. Here's a brief look at the physical properties of rutile titanium dioxide which . In order to facilitate the selection of our future and the carbon black powder  production of titanium dioxide . 1 , the hardness according to Mohs hardness scale system is , rutile titanium dioxide 6-6.5 , anatase type titanium dioxide is 5.5 to 6.0, so the fiber matting in order to avoid wear of the nozzle hole and the use of anatase .
2 , the relative density of the white pigment used , the minimum relative density of titanium dioxide , a white pigment of the same quality , the maximum surface area of ​​the titanium dioxide pigment volume up .
3 , the dielectric constant of the high dielectric constant titania , so it has excellent electrical properties . Determination of titanium dioxide in certain physical properties , it is necessary to consider the crystallization of titanium dioxide crystal orientation . Anatase type titanium dioxide is relatively low dielectric constant , only 48 .
4, the melting and boiling points as anatase at high temperatures into rutile , anatase type titanium dioxide so the melting and boiling does not actually exist. Rutile -type titanium dioxide has only melting and boiling points , rutile -type titanium dioxide has a melting point 1850 ℃, the air in the melting point of (1830 ± 15) ℃, the melting point of oxygen 1879 ℃, the melting point of the purity of the titanium dioxide . Rutile titanium dioxide has a boiling point of (3200 ± 300) ℃, at this high temperature slightly volatile titania . 5 , although the hydrophilic absorbent titania , but  low molecular polyethylene not too strong hygroscopicity , rutile than anatase small . Hygroscopicity titania surface with a certain relationship between the size , surface area, high absorbency , but also the nature of the surface treatment .
6 , particle size distribution of titanium dioxide is a comprehensive index, which seriously affect the performance of titanium dioxide pigment and product application performance , so for hiding and dispersion directly from the discussion on the analysis of particle size distribution . Factors affecting the particle size distribution of titanium dioxide is more complicated, the first original particle size hydrolysis , by controlling and regulating hydrolysis conditions , the primary particle size within a certain range . Followed by calcination temperature , the heat stabilizer for pipe  calcination process metatitanic , the particles undergo a transformation of crystalline phase and growth, control of the right temperature, the particles grow in a certain range. Finally is the product of crushing, usually Raymond transformation and analyzer speed regulation, control grinding quality, while other grinding equipment can be used , for example: universal mill, jet mill and hammer mill equipment .
 7 , the conductivity of titanium dioxide having a semiconductor performance , its conductivity increases with increase in temperature rapidly increased, and also very sensitive to hypoxia . Rutile titanium dioxide dielectric and semiconductor nature of the electronics industry is very important, titanium dioxide manufacturers can take advantage of the nature of the production of ceramic capacitors and other electronic components .
8, the thermal stability is good thermal stability of the titanium dioxide material .