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ジオキソチタン(IV) 製品概要
化学名:ジオキソチタン(IV)
英語化学名:Titanium dioxide
别名:UNITANE;PIGMENT WHITE 6;TIO2;TITANIC ANHYDRIDE;TITAN DIOXIDE;TITANIA;TITANIUM(+4)OXIDE;TITANIUM DIOXIDE, ANATASE
CAS番号:13463-67-7
分子式:O2Ti
分子量:79.87
EINECS:215-280-1
カテゴリ情報:Inorganics;Indoles;Inorganic Chemicals;metal oxide;PETRO CHEM;colorant
Mol File:13463-67-7.mol
ジオキソチタン(IV)
ジオキソチタン(IV) 物理性質
融点 1840 °C
沸点 2900 °C
比重(密度) 4.26 g/mL at 25 °C(lit.)
屈折率 2.61
闪点 2500-3000°C
貯蔵温度 -20°C
外見 powder
White to slightly yellow
PH7-8 (100g/l, H2O, 20℃)(slurry)
水溶解度 insoluble
Merck 14,9472
CAS データベース13463-67-7(CAS DataBase Reference)
NISTの化学物質情報Titanium dioxide(13463-67-7)
EPAの化学物質情報Titanium oxide (TiO2)(13463-67-7)
安全性情報
主な危険性 Xn,Xi,C
Rフレーズ 20-36/37/38-20/21/22-38-20/21-10-36/38-22-36-34-40
Sフレーズ 26-36-25-2-36/37-45-36/37/39
RIDADR UN 1307 3/PG 3
WGK Germany -
RTECS 番号XR2275000
TSCA Yes
HSコード 28230000
有毒物質データの13463-67-7(Hazardous Substances Data)
MSDS Information
ProviderLanguage
Titania English
SigmaAldrich English
ACROS English
ALFA English
ジオキソチタン(IV) Usage And Synthesis
化学的特性white to almost white powder
化学的特性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.
使用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.
製造方法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.
主な用途/役割ポリウレタン系接着剤に使用される。
Tags:13463-67-7