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Uranyl hydroxide: Difference between revisions

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Revision as of 03:47, 19 December 2010

Uranyl hydroxide
Identifiers
CompTox Dashboard (EPA)
Properties
Chemical formula H2O4U
Molar mass 304.041 g·mol
Density 5.73 - 6.73 g/cc
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). checkY verify (what is  ?) Infobox references
Chemical compound

Uranyl hydroxide is a hydroxide of uranium with the chemical formula UO2(OH)2 in the monomeric form and (UO2)2(OH)4 in the dimeric; both forms may exist in normal aqueous media. Uranyl hydroxide hydrate is precipitated as a colloidal yellowcake from oxidized uranium liquors near neutral pH.

Uranyl hydroxide was once used in glassmaking and ceramics in the colouring of the vitreous phases and the preparation of pigments for high temperature firing. The introduction of alkaline diuranates into glasses leads to yellow by transmission, green by reflection; moreover these glasses become dichroic and fluorescent under ultraviolet rays.

Uranyl hydroxide is teratogenic and radioactive, and should be handled with the appropriate care.

References

External links

Uranium compounds
U(II)
U(III)
Organouranium(III) compounds
  • U(C5H5)3
    • U(IV)
    Organouranium(IV) compounds
  • U(C8H8)2
  • U(C5H5)4
  • U(C5H5)3Cl
    • U(IV,V)
    U(IV,VI)
    U(V)
    U(VI)
    U(XII)
    • UO6 (hypothetical)
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