2. When used as a pigment
, it is called titanium white, Pigment White 6 (PW6), or CI 77891
. Generally, it is sourced from ilmenite
. It has a wide range of applications, including paint
, and food coloring
. When used as a food coloring, it has E number
E171. World production in 2014 exceeded 9 million tonnes.
It has been estimated that titanium dioxide is used in two-thirds of all pigments, and pigments based on the oxide