<Tr> <Td_colspan="2"> Infobox references </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> </Tr> <P> Titanium dioxide, also known as titanium (IV) oxide or titania, is the naturally occurring oxide of titanium, chemical formula TiO 2 . When used as a pigment, it is called titanium white, Pigment White 6 (PW6), or CI 77891 . Generally it is sourced from ilmenite, rutile and anatase . It has a wide range of applications, from paint to sunscreen to food coloring . When used as a food coloring, it has E number E171 . World production in 2014 exceeded 9 million metric tons . </P> <P> Titanium dioxide occurs in nature as the well - known minerals rutile, anatase and brookite, and additionally as two high pressure forms, a monoclinic baddeleyite - like form and an orthorhombic α - PbO - like form, both found recently at the Ries crater in Bavaria . One of these is known as akaogiite and should be considered as an extremely rare mineral . It is mainly sourced from ilmenite ore . This is the most widespread form of titanium dioxide - bearing ore around the world . Rutile is the next most abundant and contains around 98% titanium dioxide in the ore . The metastable anatase and brookite phases convert irreversibly to the equilibrium rutile phase upon heating above temperatures in the range 600--800 ° C (1,112--1,472 ° F). </P>

What is the correct chemical name for titanium dioxide
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