Uranium tetrachloride

Uranium tetrachloride is an inorganic compound, a salt of uranium and chlorine, with the formula UCl4. It is a hygroscopic olive-green solid. It was used in the electromagnetic isotope separation (EMIS) process of uranium enrichment. It is one of the main starting materials for organouranium chemistry.

Uranium tetrachloride
Names
IUPAC name
Uranium(IV) chloride
Other names
Tetrachlorouranium
Uranium tetrachloride
Uranous chloride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.030.040
EC Number
  • 233-057-7
UNII
  • InChI=1S/4ClH.2U/h4*1H;;/q;;;;2*+2/p-4 Y
    Key: AYQSGSWJZFIBLR-UHFFFAOYSA-J Y
  • InChI=1/4ClH.2U/h4*1H;;/q;;;;2*+2/p-4
    Key: AYQSGSWJZFIBLR-XBHQNQODAS
  • [U+4].[Cl-].[Cl-].[Cl-].[Cl-]
Properties
UCl4
Molar mass 379.84 g/mol
Appearance olive green solid
Density 4.87 g/cm3
Melting point 590 °C (1,094 °F; 863 K)
Boiling point 791 °C (1,456 °F; 1,064 K)
Hydrolysis
Structure
Octahedral
Related compounds
Related compounds
uranium trichloride, uranium pentachloride, uranium hexachloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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