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Hydrated rhodium trichloride is reduced by carbon monoxide, ethylene, and trifluorophosphine to give rhodium(I) complexes Rh 2 Cl 2 L 4 (L = CO, C 2 H 4, PF 3). When treated with triphenylphosphine , hydrated rhodium trichloride converts to the maroon-colored RhCl(P(C 6 H 5 ) 3 ) 3 , which is known as Wilkinson's catalyst .
Timeline of Sweden during World War II (1939–1945) Timeline of the Netherlands during World War II (1939–1945) Chronology of the liberation of Dutch cities and towns during World War II; Chronology of the liberation of Belgian cities and towns during World War II; Timeline of the Manhattan Project (1939–1947) Timeline of air operations ...
Rhodplumsite is a rare rhodium-lead sulfide mineral, chemical formula Rh 3 Pb 2 S 2. [2] [3] It was originally discovered within a platinum nugget, in grains up to 40 μm in size. Its name originates from its composition; rhodium and lead (plumbum in Latin). Although this mineral contains large amounts of rhodium, it is not an economically ...
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Perey discovered it as a decay product of 227 Ac. [177] Francium was the last element to be discovered in nature, rather than synthesized in the lab, although four of the "synthetic" elements that were discovered later (plutonium, neptunium, astatine, and promethium) were eventually found in trace amounts in nature as well. [178]
World War II – global military conflict from 1939 to 1945, which involved most of the world's nations forming two opposing military alliances, the Allies and the Axis. It was the most widespread, largest, most costly, and deadliest war in history.
At 3% fission products by weight, one ton of used fuel will contain about 400 grams of rhodium. The longest lived radioisotope of rhodium is 102m Rh with a half-life of 2.9 years, while the ground state (102 Rh) has a half-life of 207 days. [1] Each kilogram of fission rhodium will contain 6.62 ng of 102 Rh and 3.68 ng of 102m Rh.
Hanno enlisted in the army in 1942, and served on the Eastern Front in World War II as a panzer commander. He lost an arm in combat. After the war he became an art historian and architectural researcher (at the Hertziana in Rome), known for his discoveries in the early Cistercian architecture of the 12th century. In August 1960, while on a ...