thorium oxide meaning in Hindi

Examples

1. However, commercial monazite sands typically contain between 6 and 12 % thorium oxide.
2. Thorianite is a rare mineral and may contain up to about 12 % thorium oxide.
3. Thorium oxide was discovered by Friedrich W�hler in the mineral, which was found in Norway ( 1827 ).
4. Later that year, Robert B . Owens and Ernest Rutherford, at McGill University in Montreal, noticed variations when trying to measure radiation from thorium oxide.
5. Thorium occurs in several minerals, the most common being the rare earth-thorium-phosphate mineral, monazite, which contains up to about 12 % thorium oxide.
6. They obtained 99 % pure thorium metal by reducing thorium chloride with sodium metal . } } A simpler method leading to even higher purity was discovered in 1927 by Marden and Rentschler, involving the reduction of thorium oxide with calcium when calcium chloride was present.
7. Thorium Energy, Inc . has the mineral rights to approximately 1360 acres ( 5.5 sq km ) of it and states that they have proven thorium oxide reserves of 600 thousand tons and probable reserves of an additional 1.8 million tons within their claim.
8. Although thorium was discovered in 1828, it had no applications until 1885, when Carl Auer von Welsbach invented the gas mantle, a portable source of light which produces light from the incandescence of very hot thorium oxide, heated to extremely high temperatures by burning gaseous fuels.