Product Name: Titanium dioxide
Synonyms: HoMbikat catalyst grade (for rearrangeMent reactions);TitaniuM(IV) oxide nanopowder, 21 nM particle size (TEM), >=99.5% trace Metals basis;TitaniuM(IV) oxide, Mixture of rutile and anatase nanoparticles, <150 nM particle size (voluMe distribution, DLS), dispersion, 33-37 wt. % in H2O, 99.5% trace Metals basis;TitaniuM(IV) oxide, Mixture of rutile and anatase nanopowder, <100 nM particle size (BET), 99.5% trace Metals basis;Aeroxide P25;Titania nanofibers;Titania nanowires;Titanium dioxide nanofibers
CAS: 13463-67-7
MF: O2Ti
MW: 79.8658
EINECS: 236-675-5
Product Categories: colorant;Inorganics;-;Indoles;metal oxide;PETRO CHEM;Pharmaceutical intermediates;Inorganic Chemicals
Mol File: 13463-67-7.mol
Titanium dioxide Structure
Titanium dioxide Chemical Properties
Melting point 1840 °C
Boiling point 2900 °C
density 4.26 g/mL at 25 °C(lit.)
refractive index 2.61
Fp 2500-3000°C
storage temp. -20°C
solubility Practically insoluble in water. It does not dissolve in dilute mineral acids but dissolves slowly in hot concentrated sulfuric acid.
form powder
Specific Gravity 4.26
color White to slightly yellow
PH 7-8 (100g/l, H2O, 20℃)(slurry)
Water Solubility insoluble
Merck 14,9472
CAS DataBase Reference 13463-67-7(CAS DataBase Reference)
NIST Chemistry Reference Titanium dioxide(13463-67-7)
EPA Substance Registry System Titanium oxide (TiO2)(13463-67-7)
Safety Information
Hazard Codes Xn,Xi,C
Risk Statements 20-36/37/38-20/21/22-38-20/21-10-36/38-22-36-34-40
Safety Statements 26-36-25-2-36/37-45-36/37/39
RIDADR UN2920 - class 8 - PG 2 - EHS - basic - Corrosive liquids, flammable, n.o.s., HI: all
WGK Germany -
RTECS XR2275000
TSCA Yes
HS Code 28230000
Hazardous Substances Data 13463-67-7(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: > 10000 mg/kg
MSDS Information
Provider Language
Titania English
SigmaAldrich English
ACROS English
ALFA English
Titanium dioxide Usage And Synthesis
Uses Titanium (IV) dioxide (TiO2), also known as rutile, is one of the best-known compounds used as a paint pigment. It is ideal for paints exposed to severe temperatures and marine climates because of its inertness and self-cleaning attributes. It is also used in manufacture of glassware, ceramics, enamels, welding rods, and floor coverings.
Chemical Properties The naturally occurring dioxide exists in three crystal forms: anatase, rutile and brookite. While rutile, the most common form, has an octahedral structure. Anatase and brookite have very distorted octahedra of oxygen atoms surrounding each titanium atom. In such distorted octahedral structures, two oxygen atoms are relatively closer to titanium than the other four oxygen atoms. Anatase is more stable than the rutile form by about 8 to 12 kJ/mol (Cotton, F.A., Wilkinson, G., Murillo, C.A and M Bochmann. 1999. Advanced Inorganic Chemistry, 6th ed, p. 697, New York: John Wiley & Sons) Other physical properties are: density 4.23g/cm3; Mohs hardness 5.8 g/cm3 ( anatase and brookite) and 6.2 g/cm3 ( rutile); index of refraction 2.488 (anatase), 2.583 (brookite) and 2.609 (rutile); melts at 1,843°C; insoluble in water and dilute acids; soluble in concentrated acids.
Chemical Properties Ttitanium dioxide is an odorless white powder.
Chemical Properties White, amorphous, odorless, and tasteless nonhygroscopic powder. Although the average particle size of titanium dioxide powder is less than 1 mm, commercial titanium dioxide generally occurs as aggregated particles of approximately 100 mm diameter.
Titanium dioxide may occur in several different crystalline forms: rutile; anatase; and brookite. Of these, rutile and anatase are the only forms of commercial importance. Rutile is the more thermodynamically stable crystalline form, but anatase is the form most commonly used in pharmaceutical applications.
Uses Titanium dioxide is an extreme white and bright compound with high index of refraction. In paints it is a white pigment and an opacifying agent.It is in house paints, water paints, lacquers, enamels, paper filling and coating, rubber, plastics, printing ink, synthetic fabrics, floor coverings, and shoe whiteners. Also, it is used in colorants for ceramics and coatings for welding rods. A rutile form of the dioxide is used in synthetic gem stones.
Uses Airfloated ilmenite is used for titanium pigment manufacture. Rutile sand is suitable for welding-rod-coating materials, as ceramic colorant, as source of titanium metal. As color in the food industry. Anatase titanium dioxide is used for welding-rod-coatings, acid resistant vitreous enamels, in specification paints, exterior white house paints, acetate rayon, white interior air-dry and baked enamels and lacquers, inks and plastics, for paper filling and coating, in water paints, tanners' leather finishes, shoe whiteners, and ceramics. High opacity and tinting values are claimed for rutile-like pigments.
Uses titanium dioxide (TiO2) is one of the 21 FDA-approved sunscreen chemicals with an approved usage level of 2 to 25 percent. When applied, titanium dioxide remains on the skin’s surface, scattering uV light. It is often used in conjunction with other sunscreen chemicals to boost the product’s SPF value, thus reducing the risk of irritation or allergies attributed to excessive usage of chemical sunscreens. Its incorporation into sunscreen formulations, makeup bases, and daytime moisturizers depends on the particular size of titanium dioxide employed. The smaller the particle size, the more unobtrusive Tio2’s application. Large particles, on the other hand, leave a whitish wash or look on the skin. Some companies list “micro” or “ultra” when referring to the size of the titanium dioxide particle. According to some sources, titanium dioxide could be the ideal uVA/uVB protection component given its chemical, cosmetic, and physical characteristics. Titanium dioxide is also used to provide a white color to cosmetic preparations.
Uses Titanium Dioxide is a white pigment that disperses in liquids and possesses great opacifying power. the crystalline modifications of titanium dioxide are rutile and anatase, of which only anatase finds use as a color additive.
Preparation Titanium dioxide is mined from natural deposits. It also is produced from other titanium minerals or prepared in the laboratory. Pigment-grade dioxide is produced from the minerals, rutile and ilmenite. Rutile is converted to pigment grade rutile by chlorination to give titanium tetrachloride, TiCl4. Anhydrous tetrachloride is converted back to purified rutile form by vapor phase oxidation.
Anatase form is obtained by hydrolytic precipitation of titanium(IV) sulfate on heating. The mineral ilmenite is treated with concentrated sulfuric acid. Heating the sulfate solution precipitates hydrous titanium oxide. The precipitate is calcined to expel all water.
Titanium dioxide also can be prepared by heating Ti metal in air or oxygen at elevated temperatures.