Titanium dioxide | Yunnan Titan New Materials Technology Co.,Ltd

Mô tả

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, or CI 77891. Generally it is sourced from ilminite, rutile and anatase. It has a wide range of applications, from paint to sunscreen to food colouring. When used as a food colouring, it has E number E171.

Appearance	White solid
Odor	odorless
Density	4.23 g/cm³
Melting point	1843 °C
Boiling point	2972 °C
Solubility in water	insoluble
Refractive index (n_D)	2.488 (anatase) 2.583 (brookite) 2.609 (rutile)
Appearance	White solid
Odor	odorless

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Phiếu kiểm nghiệm

Form	Crystal system	Synthesis
rutile	tetragonal
anatase	tetragonal
brookite	orthorhombic
TiO₂(B)^[5]	monoclinic	Hydrolysis of K₂Ti₄O₉ followed by heating
TiO₂(H), hollandite-like form^[6]	tetragonal	Oxidation of the related potassium titanate bronze, K_0.25TiO₂
TiO₂(R), ramsdellite-like form^[7]	orthorhombic	Oxidation of the related lithium titanate bronze Li_0.5TiO₂
TiO₂(II)-(α-PbO₂-like form)^[8]	orthorhombic
baddeleyite-like form, (7 coordinated Ti)^[9]	monoclinic
TiO₂ -OI^[10]	orthorhombic
cubic form^[11]	cubic	P > 40 GPa, T > 1600 °C
TiO₂ -OII, cotunnite(PbCl₂)-like^[12]	orthorhombic	P > 40 GPa, T > 700 °C