Plutonium (III) iodide

Crystal structure
	__ Pu 3+ __ I -
Crystal system	orthorhombic
Space group	Ccmm (No. 63, position 2)
Lattice parameters	a = 433 pm ; b = 1395 pm ; c = 996 pm
General
Surname	Plutonium (III) iodide
other names	Plutonium triiodide
Ratio formula	PuI 3
Brief description	green solid
External identifiers / databases
Wikidata	Q2099802
properties
Molar mass	624.78 g mol −1
Physical state	firmly
density	6.92 g cm −3
Melting point	777 ° 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 .

Plutonium (III) iodide is a chemical compound consisting of the elements plutonium and iodine . It has the formula PuI ₃ and belongs to the iodide class of substances .

presentation

Plutonium (III) iodide can be produced by reacting plutonium with mercury (II) iodide .

{\ displaystyle {\ ce {2 Pu + 3 HgI2 -> 2 PuI3 + 3 Hg}}}

It can also be represented by reacting plutonium with hydrogen iodide at 450 ° C. The smallest traces of oxygen or water lead to the immediate decomposition of the plutonium (III) iodide to plutonium oxyiodide in this reaction .

{\ displaystyle {\ ce {2 Pu + 6 HI -> 2 PuI3 + 3 H2}}}

properties

Plutonium (III) iodide is a green solid that melts at 777 ° C. It crystallizes in the orthorhombic crystal system ( plutonium (III) bromide type) in the space group Ccmm (space group no. 63, position 2) with the lattice parameters a = 433 pm , b = 1395 pm and c = 996 pm. Template: room group / 63.2

safety instructions

Classifications according to the CLP regulation are not available because they only include chemical hazard and play a completely subordinate role compared to the hazards based on radioactivity . The latter also only applies if the amount of substance involved is relevant.

Individual evidence

↑ ^a ^b ^c Gmelin's Handbook of Inorganic Chemistry , System No. 71, Transurane, Part C, pp. 154–155.
^ ^A ^b A. F. Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 102nd edition. Walter de Gruyter, Berlin 2007, ISBN 978-3-11-017770-1 , p. 1969.
↑ 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.
↑ ^a ^b Georg Brauer (Ed.), With the collaboration of Marianne Baudler u a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3 , p. 1304.

literature

David L. Clark, Siegfried S. Hecker , Gordon D. Jarvinen, Mary P. Neu: Plutonium , in: Lester R. Morss, Norman M. Edelstein, Jean Fuger (Eds.): The Chemistry of the Actinide and Transactinide Elements , Springer, Dordrecht 2006; ISBN 1-4020-3555-1 , pp. 813-1264 ( doi : 10.1007 / 1-4020-3598-5_7 ).

[Gmelin-1] Gmelin's Handbook of Inorganic Chemistry , System No. 71, Transurane, Part C, pp. 154–155.

[HOWI_1969-2] A ^b A. F. Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 102nd edition. Walter de Gruyter, Berlin 2007, ISBN 978-3-11-017770-1 , p. 1969.

[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.

[brauer-4] Georg Brauer (Ed.), With the collaboration of Marianne Baudler u a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3 , p. 1304.