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Titanium Dioxide

Titanium Dioxide

The scientific name of titanium dioxide is Titanium Dioxide. It is a dye and pigment with a molecular formula of TiO2 and a molecular weight of 79.8658.


【Basic Information】

Chinese name: Titanium Dioxide

English name: Titanium(IV) oxide

Chinese alias: CI Pigment White 6; Titanium Dioxide; Titanium Dioxide; Titanate Rod; Titanium Dioxide; Titanium Sugar; Titanium Anhydride; Titanium Dioxide (IV); Rutile; Anatase; Titanium Dioxide Pigment 0-520; Titanium Dioxide; Titanium Oxide (IV) ); Titanium dioxide (nano-level); Titanium dioxide (nano-level)

English alias: C.I. 77891; C.I. Pigment White 6; Titanium dioxide; Titanium Dioxide Anatase; Titanium Oxide; Titania; Titanium (IV) dioxide; Rutile; dioxotitanium

CAS Number: 13463-67-7; 1317-80-2; 1317-70-0


【Main features】

The chemical composition of rutile mainly includes: TiO2, Ti60%, sometimes containing Fe, Nb, Ta, Cr, Sn, etc.; its name origin: the word Rutlle; from the Latin Rutilus, which means red, which symbolizes the color of rutile.

Its main characteristics are: its tetragonal column shape, double crystal, and color are the identification characteristics; it can be distinguished from cassitoritc; it is insoluble in acids, and it can be dissolved in silicic acid by adding sodium carbonate to it. Hydrogen peroxide can make the solution yellow.

Because it is formed under high temperature conditions, it is mainly produced in rutile quartz veins and pegmatite veins of metamorphic rock series. In addition, it appears as accessory minerals in igneous rocks, and is often found in granular form in gneiss; rutile is often converted into placer after rock weathering due to its high chemical stability.

Rutile is produced as an accessory mineral in rocks such as granite, pegmatite, gneiss, mica schist and eclogite, and is also distributed in sedimentary rocks or sediments in the form of clastics or placers. Rutile is mainly used to extract titanium and make white pigments.


【Physical data】

White powder.

Soft texture, odorless and tasteless white powder, strong hiding power 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 turns white again after cooling. Rutile type (R type) has a density of 4.26g/cm3 and a refractive index of 2.72. R-type titanium dioxide has better weather resistance, water resistance and not easy to turn yellow, but the whiteness is slightly worse. Anatase (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 weathering resistance, but its whiteness is good. In recent years, it has been discovered that nano-sized ultrafine titanium dioxide (usually 10-50 nm) has semiconductor properties, and has high stability, high transparency, high activity and high dispersion, without toxicity and color effects.


The main purpose of this paragraph

Used in paint, ink, plastic, rubber, paper, chemical fiber and other industries; used in welding electrodes, refining titanium and manufacturing titanium dioxide. Titanium dioxide (nano-level) is widely used in functional ceramics, catalysts, cosmetics and photosensitive materials and other white inorganic pigments. It is the strongest kind of white pigments, has excellent hiding power and color fastness, and is suitable for opaque white products. The rutile type is especially suitable for plastic products used outdoors, and can give the products good light stability. Anatase is mainly used for indoor products, but it has a slight blue light, high whiteness, large hiding power, strong coloring power and good dispersion. Titanium dioxide is widely used as a pigment for paint, paper, rubber, plastic, enamel, glass, cosmetics, ink, watercolor and oil paint. It can also be used for metallurgy, radio, ceramics, welding rods







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