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In one group, including M 2 UO 4 (M=Li, Na, K) and MUO 4 (M=Ca, Sr) there are six additional oxygen atoms. Taking calcium uranate, CaUO 4 , as an example, the six oxygen atoms are arranged as a flattened octahedron , flattened along the 3-fold symmetry axis of the octahedron which also runs through the O-U-O axis (local point group D 3d at the ...
Sodium diuranate, also known as the yellow oxide of uranium, is an inorganic chemical compound with the chemical formula Na 2 U 2 O 7. It is a sodium salt of a diuranate anion. It forms a hexahydrate Na 2 U 2 O 7 ·6H 2 O. Sodium diuranate is commonly referred to by the initials SDU. [1] Along with ammonium diuranate it was a component in early ...
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The UO 2+ 2 ion represents the uranium(VI) state and is known to form compounds such as uranyl carbonate, uranyl chloride and uranyl sulfate. UO 2+ 2 also forms complexes with various organic chelating agents, the most commonly encountered of which is uranyl acetate. [4]
The compounds identified in yellowcakes include uranyl hydroxide, uranyl sulfate, sodium para-uranate, and uranyl peroxide, along with various uranium oxides. Modern yellowcake typically contains 70% to 90% triuranium octoxide (U 3 O 8) by weight. Other oxides such as uranium dioxide (UO 2) and uranium trioxide (UO 3) exist. [4]
Uranyl nitrate is important for nuclear reprocessing.It is the compound of uranium that results from dissolving the decladded spent nuclear fuel rods or yellowcake in nitric acid, for further separation and preparation of uranium hexafluoride for isotope separation for preparing of enriched uranium.
Magnesium diuranate (MgU 2 O 7) is a compound of uranium. [1] It is known in the uranium refining industry as "MDU" and forms the major part of some yellowcake mixtures. Yellowcakes are an intermediate product in the uranium refining process. To produce this form of yellowcake, crushed ore is mixed with hot water to a 58% solids slurry.
the Calcutta II or W.H. Macnaghten Edition (1839–42, 4 volumes) Galland-based English translations were superseded by that made by Edward William Lane in 1839–41. In the 1880s an unexpurgated and complete English translation, The Book of the Thousand Nights and a Night, was made by Richard Francis Burton.