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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 ...
This is a timeline of events of World War II in 1939 from the start of the war on 1 September 1939. For events preceding September 1, 1939, see the timeline of events preceding World War II. Germany's invasion of Poland on 1 September 1939 brought many countries into the war. This event, and the declaration of war by France and Britain two days ...
This is a timeline of the events that stretched over the period of late World War II, its conclusion, legal aftermath, with the inclusion of the Cold War, from January 1945 to December 1991. January 1945
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 [b] or the Second World War (1 September 1939 – 2 September 1945) was a global conflict between two coalitions: the Allies and the Axis powers. Nearly all the world's countries—including all the great powers—participated, with many investing all available economic, industrial, and scientific capabilities in pursuit of total war, blurring the distinction between military and ...
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.
1942, clockwise from top left: British artillery barrage opens the Battle of El Alamein; the Jews of Salonika are rounded up for deportation to extermination camps; Soviet troops of the Great Patriotic War fight the Battle of Stalingrad; USS Lexington (CV-2) under fire at the Battle of the Coral Sea; Reinhard Heydrich's car after attack by Czech resistance; 5th SS Panzer Division Wiking troops ...