Titanium Dioxide

China Titanium Dioxide Suppliers

Soft, odorless, tasteless white powder with strong hiding and coloring power, melting point 1560 ~ 1580℃. Insoluble in water, dilute inorganic acid, organic solvent, oil, slightly soluble in alkali, soluble in concentrated sulfuric acid. It turns yellow when heated and white when cooled. Rutile type (R type) has a density of 4.26g/cm3 and a refractive index of 2.72. R Titanium Dioxide has the characteristics of good weather resistance, water resistance and not yellowing, but the whiteness is slightly worse. Anatase type (type A) has a density of 3.84g/cm3 and a refractive index of 2.55. Type A titanium dioxide has poor light resistance and is not resistant to weathering, but its whiteness is better. In recent years, it has been found that nano-scale ultrafine titanium dioxide (usually 10 ~ 50 nm) has semiconductor properties, high stability, high transparency, high activity and high dispersion, and no toxicity and color effect.