โ–ธโ–ธ
  • ๐Ÿ‡ฌ๐Ÿ‡ง Thorium
  • ๐Ÿ‡จ๐Ÿ‡ณ ้‡ท
  • ๐Ÿ‡ณ๐Ÿ‡ฑ Thorium
  • ๐Ÿ‡ซ๐Ÿ‡ท Thorium
  • ๐Ÿ‡ฉ๐Ÿ‡ช Thorium
  • ๐Ÿ‡ฎ๐Ÿ‡ฑ ืชื•ืจื™ื•ื
  • ๐Ÿ‡ฎ๐Ÿ‡น Torio
  • ๐Ÿ‡ฏ๐Ÿ‡ต ใƒˆใƒชใ‚ฆใƒ 
  • ๐Ÿ‡ต๐Ÿ‡น Tório
  • ๐Ÿ‡ท๐Ÿ‡บ ะขะพั€ะธะน
  • ๐Ÿ‡ช๐Ÿ‡ธ Torio
  • ๐Ÿ‡ธ๐Ÿ‡ช Torium

Thorium: uses

The following uses for thorium are gathered from a number of sources as well as from anecdotal comments. I would be delighted to receive corrections as well as additional referenced uses.

  • preparation of the "Welsbach mantle", used for portable gas lights. These mantles consist of thorium oxide (ThO2) with about 1% cerium oxide and other ingredients. They glow with a dazzling light when heated in a gas flame
  • alloying element for magnesium, imparting high strength and creep resistance at high temperatures
  • used to coat tungsten wire used in electronic equipment because it has a low work-function and high electron emission
  • oxide is used to control the grain size of tungsten used for electric lamps
  • oxide is used for high-temperature laboratory crucibles
  • glasses containing thorium oxide have a high refractive index and low dispersion. They are therefore used for high quality camera lenses and scientific instruments
  • oxide is a catalyst for the conversion of ammonia to nitric acid, petroleum cracking, and sulphuric acid production
  • source of nuclear energy