Uranyl nitrate and Uranyl acetate are routinely used as stains for
transmission electron microscopy (really contrasting agents, not
stains in the light microscopy sense). Both for sections and negative
stains of bacteria, viruses, and macromolecules.
Waste disposal is just as a toxic compound (uranium is toxic) in
water. The radioactivity is too low to bother about, even for the
safety people -- although there are probably some safety offices that
regulate UNO3 and UAc they same way they do carbon-14 or
phosphorus-32, which are issues.
>The preferred name for this venerable silver technique is "reticulum
>stain". Whatever reticulin is (or was), it isn't all that the
>technique demonstrates. I never heard anybody say "reticular stain".
>How are people handling the hazmats problems with reticwhatever
>stains? Is anybody still using uranyl nitrate?
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Central Michigan University
Mt. Pleasant, MI 48859
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