Due to its unique optical properties such as high reflectivity, outstanding brightening capability and chemical stability, titanium dioxide (TiO2) is by far the most important white pigment. Due to these properties virtually all white coloured objects contain TiO2. The spectrum of use is widely diversified and runs from dyes, paints, plastics and fibres right up to cosmetics, ointments and toothpaste. The largest use of TiO2 is in paints, varnishes, inks and dyes for white colouring, opacity and increasing the resistance to the environment and sunlight. TiO2 is usually dosed into a process or mixture. It is expensive and the exact blend of the product is crucial for product quality and consistency.