Actinium (III) sulfide

General
Surname	Actinium (III) sulfide
other names	Actinium sulfide
Molecular formula	Ac 2 S 3
Brief description	black solid
External identifiers / databases
Wikidata	Q3539686
properties
Molar mass	550.19 g mol −1
Physical state	firmly
density	6.75 g cm −3
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 .

Actinium (III) sulfide is a chemical compound of actinium from the group of sulfides .

Extraction and presentation

Actinium (III) sulfide can be obtained by reacting actinium (III) oxalate with hydrogen sulfide in a carbon disulfide atmosphere at 1400 ° C.

{\ displaystyle \ mathrm {Ac_ {2} (C_ {2} O_ {4}) _ {3} +3 \ H_ {2} S \ longrightarrow Ac_ {2} S_ {3} +3 \ H_ {2} O +3 \ CO_ {2} +3 \ CO}}

Actinium (III) sulfide is a black solid. It crystallizes in the cubic crystal system with the thorium (IV) phosphide Th ₃ P ₄ - structure type in the space group I 4 3 d (space group no. 220) and the lattice parameter a = 897 pm. Template: room group / 220

↑ ^a ^b ^c ^d Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 1127.
^ Dale L. Perry: Handbook of Inorganic Compounds, Second Edition . CRC Press, 2011, pp. 2 ( 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.