From the Greek myth of the source of the wealth Tantalus king, found in 1820.
Tantalum almost completely not to move by the erosion in surgery, for the human body has a great contribution to the repair: it can replace bone iliac (such as skull); Made of foil or silk thread is able to link the rupture of nerves; Can be used to bind up gauze woven into the abdominal muscles.
Tantalum. Element symbols. Ta. Atoms. Ordinal number. 73. The relative atomic mass. (12 C = 12.0000)... 1802 by AG Ekeberg (Sweden, uppsala) found. To. Source. Mainly exists in tantalite, with
niobium symbiosis. Use. Used in metal alloy. Five tantalum capacitors for oxidation. Tantalum also used for cutting tools, vacuum filament, the camera lens.
Metal
tantalum USES:
Metal
tantalum is a were slightly blue light gray metal, due to the characteristics of the singular has many, has wide application field, therefore, is known as "kingdom of metal in the near future.
The quality of a material of tantalum is tough, hardness can reach 6-6.5. It is as high as 2996 ℃ the melting point, second only to pricey rhenium tungsten and in third place. Tantalum rich ductility, can be drawn into a thin thread type system foil. The thermal expansion coefficient is small, each rise only six point six percent inflation one degree centigrade. In addition, its toughness is very strong, even than copper excellent.
Tantalum and very good chemical properties, and have the alpine make corrosive. Whether in cold and hot conditions, of hydrochloric acid, nitric acid and "wang, s." reaction. In 200 ℃ to
tantalum of sulphuric acid in the water a year, surface damage only 0.006 mm. Experiments show, tantalum at normal temperature, the alkali solution, chlorine, XiuShui, dilute sulphuric acid and many other agents are doesn't work, only in the hydrogen fluorine and hot under the action of sulfuric acid to respond. This situation in the metal in was very rare.
