Everything about Uranyl Acetate totally explained
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Uranyl acetate (UO
2(CH
3COO)
2·2H
2O) is a yellow free-flowing crystalline solid of yellow rhombic
crystals with a slight acetic odor.
It is used as a negative stain in
electron microscopy. In fact, most procedures in electron microscopy for biology require the use of uranyl acetate. 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.
Commercial preparations of uranyl acetate are made from
depleted uranium and have a typical radioactivity of 0.37 - 0.51 µCi/g. This mild radioactivity level isn't sufficient to be harmful while the material remains external to the body. However it's very toxic by ingestion and if inhaled as dust or by skin contact if skin is cut or abraded and there's a danger of cumulative effects from long term exposure.
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