|
UH3
Uranium hydride may refer to the following chemical compounds: *Uranium(III) hydride * Uranium(IV) hydride See also * Uranium hydride bomb The uranium hydride bomb was a variant design of the atomic bomb first suggested by Robert Oppenheimer in 1939 and advocated and tested by Edward Teller. It used deuterium, an isotope of hydrogen, as a neutron moderator in a uranium-deuterium ceram ... {{Short pages monitor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uranium(III) Hydride
Uranium hydride, also called uranium trihydride (UH3), is an inorganic compound and a hydride of uranium. Properties Uranium hydride is a brownish black pyrophoric powder. Its density at 20 °C is 10.95 g cm−3, much lower than that of uranium (19.1 g cm−3). It has a metallic conductivity, is slightly soluble in hydrochloric acid and decomposes in nitric acid. Two crystal modifications of uranium hydride exist, both cubic: an α form that is obtained at low temperatures and a β form that is grown when the formation temperature is above 250 °C. After growth, both forms are metastable at room temperature and below, but the α form slowly converts to the β form upon heating to 100 °C. Both α- and β-UH3 are ferromagnetic at temperatures below ~180 K. Above 180 K, they are paramagnetic. Formation in uranium metal Hydrogen gas reaction Exposure of uranium metal to hydrogen at 250 °C gives the trihydride: : Bulk uranium metal crumbles into a fine powder during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uranium(IV) Hydride
Uranium(IV) hydride is a chemical compound with the chemical formula U H, a metal hydride. In 1997, Souter ''et al.'' reported the production of UH reacting laser ablated uranium atoms with dihydrogen and capturing the product on solid argon. The assignment of the structure was made using infrared spectroscopic evidence supported by DFT The Department for Transport (DfT) is a ministerial department of the Government of the United Kingdom. It is responsible for the English transport network and a limited number of transport matters in Scotland, Wales, and Northern Ireland t ... calculations. Uranium(IV) hydride has a quasi-tetrahedral (''C'') structure. UH is formed by the successive insertion of uranium into two hydrogen molecules: :U + H → UH :UH + H → UH Further reaction with hydrogen, only produces dihydrogen complexes: UH(H) (1 ≤ ''n'' ≤ 6). References Uranium(IV) compounds Metal hydrides {{inorganic-compound-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |