基本的な属性 MSDS 用途と合成の方法 サプライヤー

ジオキソチタン(IV)

基本的な属性 MSDS 用途と合成の方法 サプライヤー
ジオキソチタン(IV)
ジオキソチタン(IV) 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
  • 溶解性Practically insoluble in water. It does not dissolve in dilute mineral acids but dissolves slowly in hot concentrated sulfuric acid.
  • 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)
セキュリティ情報
MSDS Information
  • Language:EnglishProvider:Titania
  • Language:EnglishProvider:SigmaAldrich
  • Language:EnglishProvider:ACROS
  • Language:EnglishProvider:ALFA
ジオキソチタン(IV) 用途と合成の方法
  • 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.
  • 主な応用
    • Industry
    • Application
    • Role/benefit
    • Pigment
    • Optical coating for dielectric mirrors and gemstones
    • Brightness and very high refractive index
    • Paper coating
    • Helps to make paper whiter, brighter and more opaque
    • Plastics, adhesives and rubber
    • Helps minimize the brittleness, fading and cracking that can occur as a result of light exposure
    • Food Contact materials and ingredients
    • Prevents premature degradation and enhance the longevity of the product
    • Paints
    • Gives paint its high gloss and rich depth of color
    • Ceramic glazes
    • Acts as an opacifier and seeds crystal formation
    • Cosmetic
    • Sunscreens
    • Active ingredients/high refractive index and strong UV light absorbing capabilities
    • Daily cosmetics or make-up materials
    • Additive/aids in hiding blemishes and brightening the skin
    • Toothpastes
    • Additive/helps to whiten tooth
    • Catalyst
    • Dye-sensitized solar cell
    • Can produce electricity in nanoparticle form
    • Hydrolysis reaction
    • Catalyzes the photo decomposition of water into hydrogen and oxygen
    • Automotive, power stations, etc.
    • Helps to removes harmful exhaust gas emissions, such as nitrous oxides, volatile organic compounds, etc.
    • Detoxification or remediation of wastewater
    • Photocatalytically mineralizes pollutants (to convert into CO2 and H2O) in waste water
    • Photocatalytic antimicrobial coating
    • Photocatalytic destruction of organic matter
    • Others
    • Oxygen sensor
    • The electrical resistivity of TiO2 can be correlated to the oxygen content of the atmosphere
    • Anti-fogging coatings and self-cleaning windows
    • Under exposure to UV light, TiO2 becomes increasingly hydrophilic
    • Coated ceramic tile
    • Disinfectant and self-cleaning qualities
    • Treatment of the air in fruit, vegetable and cut flower storage areas
    • Removes ethylene gas to prevent spoilage and prevents internal combustion
    • Memristor
    • Can be employed for solar energy conversion
    • Mixed conductor
    • Significant ionic and electronic conduction
  • 使用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.
  • 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.
  • 使用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.
  • 主な用途/役割ポリウレタン系接着剤に使用される。
  • 危険性Lower respiratory tract irritant. Possible carcinogen.
  • 用途塗料?印刷インキ?インクジェットインキ?プラスチックの着色顔料,化粧品?シリコーンゴム?プラスチック繊維?磁気テープ?トナー?セラミックスなどの配合原料 (NITE CHRIP)
  • 定義本品は、チタンの酸化物であり、次の化学式で表される。
  • 化粧品の成分用途不透明化剤、褪色防止剤、着色剤、紫外線吸収剤.散乱剤
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