What Is Tantalum Oxide?
Tantalum oxide, also called tantalum pentoxide, is a white to almost white powder or mass of inorganic compound.
Tantalum oxide’s main composition, compositional information, and physical and chemical properties are “Chemical formula: Ta2O5,” “Molecular weight: 441.89,” “CAS registration number: 1314-61-0,” and “Decomposition temperature: 1470°C.” It is almost insoluble in water.
Tantalum oxide is mainly applied to “Hazardous and Noxious Substances to be Labeled” and “Hazardous and Noxious Substances to be Notified” under the Safety and Health Law, and No. 338 under Appended Table 9, Article 18-2 of the Enforcement Order of the same law.
Uses of Tantalum Oxide
Tantalum oxide are used as raw material for optical lenses because of its high refractive index in the visible light range and superior film stability in ion assisted deposition (IAD) compared to other materials with a high refractive index.
Tantalum oxide arealso used as raw material for antireflective coatings and interference filters used in computer displays and automobile windshields.
Furthermore, as a compound of tantalum oxide, which is known for its high dielectric constant, tantalum oxide are widely used in Japan’s world-class field of “electronic ceramics,” including dielectrics for electrolytic capacitors.