Thallium, or Tl, is a transition element whose atomic number is 81 and weighs 204 g/mol in terms of its atomic composition. Let us talk about some facts and uses of this element.
- Thallium is a moderately strong oxidizing agent with high electrical conductivity and a low melting point.
- Thallium was used as a rodenticide historically.
- Thallium is most commonly used in the production of electronic devices, like photoelectric cells.
- Most notable uses of thallium are in the semiconductor industry and glass lens industries.
- Before the widespread usage of technetium, nuclear radiography was predominantly obtained from the radioactive isotope Tl-201.
- Thallium is also used as a catalyst in certain chemical organic reactions and in the production of artificial jewels.
- Thallium is used as a high-temperature superconducting material that is profoundly used in electric power generation and transmission equipments.
- Thallium serves as a doping agent in the optic fiber and glass lens industry.
- Thallium amalgam is used to manufacture low-temperature thermometers, mercury lamps, switches and closures.
- Thallium is highly beneficial in detecting gamma radiation.
- Stable thallium halides like thallium bromide and iodide crystals are used in infrared-sensitive photocells owing to their transmission at longer wavelengths.
- Thallium oxide is used to make special high refractive index glass.
- High-density durable glasses are made from thallium combined with selenium or sulphur.
- Thallium(I) sulphide is used to produce photoresistors.
- Thallium selenide is used to manufacture bolometers used for detecting infrared rays.
- High-density liquid thallium is used for sink-float segregation of minerals.
Conclusion
Thallium is a soft, tasteless, odorless, heavy, and inelastic metal. It is found in trace amounts in the earth’s crust. Thallium has a metallic luster but tarnishes into bluish-white when exposed to air. The wide application of thallium is due to its notable characteristics.
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