Search results
Results from the WOW.Com Content Network
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 ...
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file
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]
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.
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.
Uranyl nitrate is a water-soluble yellow uranium salt with the formula UO 2 (NO 3) 2 · n H 2 O. The hexa-, tri-, and dihydrates are known. [3] The compound is mainly of interest because it is an intermediate in the preparation of nuclear fuels. In the nuclear industry, it is commonly referred to as yellow salt.