- Titanium dioxide,
also known as titanium(IV) oxide or titania, is the naturally occurring
oxide of titanium, chemical formula TiO2, When used as a
pigment, it is called titanium white, Pigment White 6.
- Titanium dioxide
is obtained from a variety of ores that contain ilmenite, rutile,
anatase and leucoxene, which are mined from deposits located throughout
- It is
noteworthy for its wide range of applications, from paint to sunscreen
to food colouring.
- Titanium dioxide
occurs in nature as the well-known naturally occurring minerals rutile,
anatase and brookite.
- The most
common form is rutile, which is also the most stable form.
- Most titanium
dioxide pigment is produced from titanium mineral concentrates by the
chloride or sulfate process, either as the rutile or the anatase form.
- Anatase and
brookite both convert to rutile upon heating. Rutile, anatase and
brookite all contain 6 coordinate titanium. Additionally there are three
metastable forms produced synthetically and five high pressure forms
The non-porous films are synthesized by a modified
sol-gel method employing a mixture of titania sol and colloidal TiO2
particles to immobilize commercially available TiO2 powder nano
The per capita consumption of
titanium dioxide in USA is about 3.4 Kg.
The consumption in Asia-Pacific
region is about 0.2 Kg.
The Indian consumption,
however, is extremely low at less than 0.05 Kg.
Titanium dioxide is produced
and marketed in two grades, They are Rutile and Anatase.
Rutile has close packed
structure whereas Anatase has, more open structure.
- Pigmentary and
ultra fine titanium dioxide were tested for carcinogenicity by oral
administration in mice and rats.
Titanium dioxide (TiO2) is a multifaceted compound,
Itís the stuff that makes toothpaste white and paint opaque.
TiO2 to make self-cleaning ceramic tiles for use in
hospitals, public restrooms, and other settings where cleanliness is
vitally important, as well as on hard-to-reach rooftops, where simple
sunlight and rainwater can help prolong the life of the roof.
Titanium Dioxide is used as extensively in
paint, paper, plastic and other industries.
High purity titanium dioxide is an important
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