Promethium (III) iodide

General
Surname	Promethium (III) iodide
other names	Promethium triiodide
Molecular formula	PmI 3
Brief description	red solid
External identifiers / databases
Wikidata	Q1473876
properties
Molar mass	527.71 g mol −1 ( 147 μm)
Physical state	firmly
Melting point	695 ° 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 .

Promethium (III) iodide is a chemical compound made up of the elements promethium and iodine . It has the formula PmI ₃ and belongs to the iodide class of substances .

Appearance and properties

Promethium (III) iodide cannot be prepared from promethium (III) oxide (Pm ₂ O ₃ ) by reaction with HI - H ₂ mixtures; instead, promethium (III) oxyiodide (PmOI) is formed. The desired product is formed by reaction of Pm ₂ O ₃ with molten aluminum iodide (AlI ₃ ) at 500 ° C. It is a red solid with a melting point of 695 ° C.

safety instructions

Classifications according to the CLP regulation are not available because these 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.

literature

Fritz Weigel: The chemistry of promethium , in: Fortschr. Chem. Forsch. , 1969 , 12 (4), pp. 539-621 ( doi : 10.1007 / BFb0051097 ).
James E. Huheey: Inorganische Chemie , 1st edition, de Gruyter, Berlin 1988, ISBN 3-11-008163-6 , pp. 873-900.

Individual evidence

^ ^A ^b ^c 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. 1942.
↑ 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.
↑ Weigel: Die Chemie des Promethiums , p. 591.
↑ Gmelin's Handbook of Inorganic Chemistry , System No. 39, Part C 6, p. 192.

[HOWI_1942-1] A ^b ^c 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. 1942.

[NV-2] 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.

[Weigel_591-3] Weigel: Die Chemie des Promethiums , p. 591.

[4] Gmelin's Handbook of Inorganic Chemistry , System No. 39, Part C 6, p. 192.