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Uranyl acetate is the acetate salt of uranium oxide, a toxic yellow-green powder useful in certain laboratory tests. Structurally, it is a coordination polymer with formula UO 2 (CH 3 CO 2 ) 2 (H 2 O)·H 2 O.
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 .
A particular feature is the presence of linear O-U-O moieties, which resemble the uranyl ion, UO 2 2+. However, the U-O bond length varies from 167 pm, which is similar to the bond length of the uranyl ion, up to about 208 pm in the related compound α-UO 3, so it is debatable as to whether these compounds all contain the uranyl ion. There are ...
Uranyl formate (UO 2 (CHO 2) 2 ·H 2 O) is a salt that exists as a fine yellow free-flowing powder occasionally used in transmission electron microscopy. It is used as a negative stain in transmission electron microscopy (TEM) because it exhibits a finer grain structure than uranyl acetate .
The compositions were variable and depended upon the leachant and subsequent precipitating conditions. 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.
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Uranyl sulfate; Uranyl zinc acetate; W. Wyartite This page was last edited on 14 April 2019, at 10:14 (UTC). Text is available under the Creative Commons ...