Uranium (VI) chloride

Structural formula
General
Surname	Uranium (VI) chloride
other names	Uranium hexachloride
Molecular formula	UCl 6
Brief description	black-green solid
External identifiers / databases
Wikidata	Q7899678
properties
Molar mass	450.75 g mol −1
Physical state	firmly
density	3.59 g cm −3
Melting point	177.5 ° C
solubility	reacts violently with water; Slightly soluble in carbon tetrachloride, liquid chlorine, methyl chloride, isobutyl bromide and thionyl chloride;
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 (VI) chloride is a chemical compound of uranium from the group of chlorides .

presentation

Uranium (VI) chloride can be obtained by decomposing uranium (V) chloride at 175 ° C.

{\ displaystyle \ mathrm {2 \ UCl_ {5} \ longrightarrow UCl_ {6} + UCl_ {4}}}

It can also be prepared by reacting uranium (VI) fluoride with an excess of boron trichloride at −196 ° C.

{\ displaystyle \ mathrm {UF_ {6} +6 \ BCl_ {3} \ longrightarrow UCl_ {6} +6 \ BCl_ {2} F}}

Uranium (VI) chloride is a black-green, very hygroscopic , crystalline solid. It slowly decomposes at temperatures above 120 ° C. It reacts with liquid hydrogen fluoride or uranium (VI) fluoride to form uranium (IV) fluoride and uranium (V) fluoride . It reacts with carbon tetrachloride to form uranium (V) chloride. It has a trigonal crystal structure with the space group P 3 m 1 (No. 164) . Template: room group / 164

↑ ^a ^b ^c ^d ^e Georg Brauer (Ed.), With the collaboration of Marianne Baudler u. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 1208.
↑ ^a ^b ^c ^d Lester R. Morss, Norman M. Edelstein, J. Fuger (Eds.): The Chemistry of the Actinide and Transactinide Elements (Set Vol. 1-6) . Volumes 1-6. Springer, Dordrecht 2010, ISBN 978-94-007-0211-0 , p. 567 (English, 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.