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A method of general applicability involves combining two oxides in a high temperature reaction. [3] For example, Na 2 O + UO 3 → Na 2 UO 4. Another method is the thermal decomposition of a complex, such as an acetate complex. For example, microcrystalline barium diuranate, BaU 2 O 7, was made by thermal decomposition of barium uranyl acetate ...
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 ...
2 O 2− 7, this is not necessarily the case. It can also be called diammonium diuranium heptaoxide. The structure was theorized to be similar to that of uranium trioxide dihydrate. [1] [2] Recent literature has shown that the structure more closely resembles the mineral metaschoepite, the partially dehydrated form of schoepite. [3]
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]
The Book of the Thousand Nights and a Night (1888), subtitled A Plain and Literal Translation of the Arabian Nights Entertainments, is the only complete English language translation of One Thousand and One Nights (the Arabian Nights) to date – a collection of Middle Eastern and South Asian stories and folk tales compiled in Arabic during the Islamic Golden Age (8th−13th centuries) – by ...
1% and 2% uranyl acetate solutions are used as an indicator, and a titrant in stronger concentrations in analytical chemistry, as it forms an insoluble salt with sodium (the vast majority of sodium salts are water-soluble). Uranyl acetate solutions show evidence of being sensitive to light, especially UV, and will precipitate if exposed.
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 Sortes Vergilianae (Virgilian Lots) is a form of divination by bibliomancy in which advice or predictions of the future are sought by interpreting passages from the works of the Roman poet Virgil. The use of Virgil for divination may date to as early as the second century AD, and is part of a wider tradition that associated the poet with ...