Thorium Dioxide

Thorium dioxide (ThO2), also called thorium(IV) oxide is a white, crystalline powder. It was formerly known as thoria or thorina. It is produced mainly as a by-product of lanthanide and uranium production. Thorianite is the name of the mineralogical form of thorium dioxide. It is moderately rare and crystallizes in isometric system.

Read more about Thorium DioxideChemistry, Applications

Other articles related to "thorium dioxide, thorium":

Low Dispersion Glass - Variants
... Glass with addition of thorium dioxide has high refraction and low dispersion and was in use since before World War II (WW2), but its radioactivity led to its replacement with other compositions ... Even during WW2, Kodak managed to make high-performance thorium-free optical glass for use in aerial photography, but it was yellow-tinted ... Leitz laboratories discovered that lanthanum(III) oxide can be a suitable thorium dioxide replacement ...
Applications - Thorium Compounds
... Thorium dioxide (ThO2) and thorium nitrate (Th(NO3)4) were used in mantles of portable gas lights, including natural gas lamps, oil lamps and camping lights ... Thorium dioxide is a material for heat-resistant ceramics, e.g ... Thorium dioxide was used to control the grain size of tungsten metal used for spirals of electric lamps ...
Thorium Dioxide - Applications
... Thorium dioxide is used as a stabilizer in tungsten electrodes in TIG welding, electron tubes, and aircraft engines ... augments the high temperature mechanical properties, and thorium helps stimulate the emission of electrons (thermions) ... Some mantles still use thorium, but yttrium oxide (or sometimes zirconium oxide) is used increasingly as a replacement ...
Applications - Thorium Compounds
... Thorium dioxide (ThO2) and thorium nitrate (Th(NO3)4) were used in mantles of portable gas lights, including natural gas lamps, oil lamps and ... Thorium dioxide is a material for heat-resistant ceramics, e.g ... Thorium dioxide was used to control the grain size of tungsten metal used for spirals of electric lamps ...