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Tellurium is a metalloid, and the element symbol is Te. The name comes from tellus, which means "land", discovered by F.J.Müller von Reichenstein in 1782. Tellurium is an orthorhombic silver-white crystal, soluble in sulfuric acid, nitric acid, aqua regia, potassium cyanide, potassium hydroxide; insoluble in cold water, hot water, and carbon disulfide. High-purity tellurium is obtained from tellurium powder as raw material, extracted and refined with sodium polysulfide, with a purity of 99.999%. Used as additives in semiconductor devices, alloys, chemical raw materials, cast iron, rubber, glass and other industries.
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tellurium
Metal tellurium, high-purity tellurium is an off-white metallic luster prismatic crystal or powder, density 6.24g/cm3, melting point 449.5°C, boiling point 988°C, soluble in concentrated nitric acid, concentrated sulfuric acid and strong alkali, not at room temperature ~ Oxygen effect is mainly used in the preparation of semiconductor compounds, thermoelectric conversion elements, piezoelectric transistors, infrared detector elements, light control elements, light deflection elements, and special metal materials. It is widely used in civil, military, aerospace, and electronics fields.
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