The Elements - Periodic Table

(Marvins-Underground-K-12) #1

Uranium in the U.S.A. is controlled by the U.S. Nuclear Regulatory Commission. New uses are being
found for depleted uranium, ie., uranium with the percentage of^235 U lowered to about 0.2%.


Uranium is used in inertial guidance devices, in gyro compasses, as counterweights for aircraft control
surfaces, as ballast for missile reentry vehicles, and as a shielding material. Uranium metal is used for
X-ray targets for production of high-energy X-rays; the nitrate has been used as a photographic toner,
and the acetate is used in analytical chemistry.


Crystals of uranium nitrate are triboluminescent. Uranium salts have also been used for producing yellow
"vaseline" glass and glazes. Uranium and its compounds are highly toxic, both from a chemical and
radiological standpoint.


Handling


Finely divided uranium metal, being pyrophoric, presents a fire hazard.


Working with uranium requires the knowledge of the maximum allowable concentrations that may be
inhaled or ingested.


Recently, the natural presence of uranium in many soils has become of concern to homeowners because
of the generation of radon and its daughters.


Sources: CRC Handbook of Chemistry and Physics and the American Chemical Society.


Last Updated: 12/19/97, CST Information Services Team


Uranium
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