Gallium (I) sulfide

General
Surname	Gallium (I) sulfide
other names	Digallium monosulfide
Molecular formula	Ga 2 S
Brief description	gray to gray-black solid
External identifiers / databases
PubChem	16686014
ChemSpider	17618197
Wikidata	Q4445839
properties
Molar mass	171.5 g mol −1
Physical state	firmly
density	4.18 g cm −3
safety instructions
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 .

Gallium (I) sulfide is an inorganic chemical compound of gallium from the group of sulfides .

Extraction and presentation

Gallium (I) sulfide can be obtained by reacting gallium with gallium (II) sulfide in vacuo at 710 ° C or with hydrogen sulfide at 1100 ° C and reduced pressure.

{\ displaystyle \ mathrm {Ga + GaS \ longrightarrow Ga_ {2} S}}

{\ displaystyle \ mathrm {2 \ Ga + H_ {2} S \ longrightarrow Ga_ {2} S + H_ {2}}}

properties

Gallium (I) sulfide is a gray to gray-black solid that slowly oxidizes and hydrolyzes in air, releasing hydrogen sulfide. It turns green. The compound has a variable composition between Ga ₂ S _0.8 and Ga ₂ S _1.1 . Similar to gallium (II) sulfide, it has a hexagonal crystal structure . It decomposes above 950 ° C into gallium and gallium (II) sulfide.

{\ displaystyle \ mathrm {Ga_ {2} S \ longrightarrow Ga + GaS}}

Individual evidence

↑ ^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. 859.
↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
^ Emeleus and Sharp: Advances in Inorganic Chemistry and Radiochemistry . Academic Press, 1963, ISBN 0-08-057854-3 , pp. 94 ( limited preview in Google Book search).

[brauer-1] 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. 859.

[NV-2] This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.

[sharp-3] Emeleus and Sharp: Advances in Inorganic Chemistry and Radiochemistry . Academic Press, 1963, ISBN 0-08-057854-3 , pp. 94 ( limited preview in Google Book search).