Uranium (IV) iodide

Crystal structure
	__ U 4+ __ I -
General
Surname	Uranium (IV) iodide
other names	Uranium tetraiodide
Ratio formula	UI 4
Brief description	black solid
External identifiers / databases
EC number	236-735-0
ECHA InfoCard	100.033.381
PubChem	83508
Wikidata	Q7899713
properties
Molar mass	745.65 g mol −1
Physical state	firmly
Melting point	506 ° C (in iodine)
boiling point	762 ° C
Hazard and safety information
	; Radioactive
GHS hazard labeling ; no classification available
GHS hazard labeling ; no classification available
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Uranium (IV) iodide is an inorganic chemical compound of uranium from the group of iodides .

presentation

Uranium (IV) iodide can be obtained by reacting uranium with an excess of iodine .

{\ displaystyle {\ ce {U + 2 I2 -> UI4}}}

properties

Uranium (IV) iodide is a black solid that is in the form of needle-shaped crystals. When heated, it decomposes with partial decomposition into uranium (III) iodide and iodine. It crystallizes monoclinically , space group C 2 / c (space group no.15 ) with the lattice parameters a = 1396.7 pm , b = 847.2 pm, c = 751 pm and β = 90.54 °. Template: room group / 15

Individual evidence

↑ ^a ^b ^c ^d Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3 , p. 1218.
↑ ^a ^b J.J. Katz, Eugene Rabinowitch: The Chemistry of Uranium . 1961, ISBN 5-88135-966-6 , pp. 536 ( limited preview in Google Book search).
↑ The hazards emanating from radioactivity do not belong to the properties to be classified according to the GHS labeling. With regard to other hazards, this substance has either not yet been classified or a reliable and citable source has not yet been found.
^ JH Levy, JC Taylor, AB Waugh: Crystal Structure of Uranium (IV) Tetraiodide by X-ray and Neutron Diffraction . In: Inorganic Chemistry , 19, 1980, pp. 672-674, doi: 10.1021 / ic50205a019 .

[brauer-1] Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3 , p. 1218.

[J.J._Katz,_Eugene_Rabinowitch-2] J.J. Katz, Eugene Rabinowitch: The Chemistry of Uranium . 1961, ISBN 5-88135-966-6 , pp. 536 ( limited preview in Google Book search).

[NV-3] The hazards emanating from radioactivity do not belong to the properties to be classified according to the GHS labeling. With regard to other hazards, this substance has either not yet been classified or a reliable and citable source has not yet been found.

[4] JH Levy, JC Taylor, AB Waugh: Crystal Structure of Uranium (IV) Tetraiodide by X-ray and Neutron Diffraction . In: Inorganic Chemistry , 19, 1980, pp. 672-674, doi: 10.1021 / ic50205a019 .