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Various oxidation states of plutonium in solution. Plutonium compounds are compounds containing the element plutonium (Pu). At room temperature, pure plutonium is silvery in color but gains a tarnish when oxidized. [1] The element displays four common ionic oxidation states in aqueous solution and one rare one: [2] Pu(III), as Pu 3+ (blue lavender)
Plutonium–gallium–cobalt alloy (PuCoGa 5) is an unconventional superconductor, showing superconductivity below 18.5 K, an order of magnitude higher than the highest between heavy fermion systems, and has large critical current. [46] [50] Plutonium–zirconium alloy can be used as nuclear fuel. [51]
plutonium: 94: 1bc: Has no known biological role, and is extremely rare in the Earth's crust. The isotope plutonium-238 is used as an energy source in some heart pacemakers. [11] Both toxic and radioactive. polonium: 84: 1b: Has no known biological role, and due to its short half-life, is nearly nonexistent outside of research facilities. [11]
Plutonocene, Pu(C 8 H 8) 2, is an organoplutonium compound composed of a plutonium atom sandwiched between two cyclooctatetraenide (COT 2-) rings.It is a dark red, very air-sensitive solid that is sparingly soluble in toluene and chlorocarbons.
The presence of these many allotropes makes machining plutonium very difficult, as it changes state very readily. For example, the alpha (α) phase exists at room temperature in unalloyed plutonium. It has machining characteristics similar to cast iron but changes to the beta (β) phase at slightly higher temperatures.
When heated to 150–180 °C, it decomposes with autooxidation to plutonium (VI) with the formation of plutonyl nitrate (PuO 2 (NO 3) 2).Upon evaporation of concentrated nitric acid solutions of plutonium nitrate and alkali metal nitrates, double nitrates of the composition M 2 [Pu(NO 3) 6] are formed, where M = Cs +, Rb +, K +, Tl +, NH 4 +, analogous to ceric ammonium nitrate.
Plutonium nitride can be prepared by the reaction of plutonium hydrides with nitrogen or ammonia at a temperature of 650 °C and a pressure of 0.3 kPa. [3] Another method to prepare plutonium nitride is from the reduction of plutonium(III) iodide with sodium in liquid ammonia: PuI 3 + NH 3 + 3Na → PuN + 3NaI
Pages in category "Plutonium compounds" The following 13 pages are in this category, out of 13 total. This list may not reflect recent changes. ...
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