Magnesium hydrogen sulfide

Structural formula
	No drawing available
General
Surname	Magnesium hydrogen sulfide
Molecular formula	Mg (HS) 2
External identifiers / databases
Wikidata	Q29566740
properties
Molar mass	90.45 g mol −1
solubility	soluble in water
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 .

Magnesium hydrogen sulfide is a chemical compound that is only stable in aqueous solution. It consists of magnesium ions (Mg ²⁺ ) and hydrogen sulfide ions (HS ^- ).

Extraction and presentation

Magnesium hydrogen sulphide is formed when magnesium sulphide comes into contact with water or moisture, whereby magnesium hydroxide and magnesium hydrogen sulphide are formed:

{\ displaystyle \ mathrm {2 \ MgS + 2 \ H_ {2} O \ rightarrow \ Mg (OH) _ {2} + Mg (HS) _ {2}}}

use

Magnesium hydrogen sulfide is used, among other things, for the production of pure hydrogen sulfide (H ₂ S) or its purification in the laboratory.

This can also be used to determine the alkali sulfide content of mixtures of substances by heating the mixture of substances with magnesium chloride in carbonic acid and water, producing hydrogen sulphide.

{\ displaystyle \ mathrm {2 \ Na_ {2} S + 2 \ MgCl_ {2} +2 \ H_ {2} O \ longrightarrow Mg (HS) _ {2} + Mg (OH) _ {2} +4 \ NaCl}}

{\ displaystyle \ mathrm {2 \ Mg (HS) _ {2} +2 \ H_ {2} O \ longrightarrow Mg (OH) _ {2} +2 \ H_ {2} S}}

Individual evidence

^ ^A ^b Y. Mido & Iqbal: Chemistry Of S Block Elements . Discovery Publishing House, 1994, ISBN 978-81-7141-241-9 , pp. 104 ( books.google.de ).
↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
↑ ^a ^b F. G. REICHELSHEIM: Inorganic chemistry . In: Journal of the Chemical Society . tape 29 , no. 0 , January 1, 1876, ISSN 0368-1769 , doi : 10.1039 / JS8762900038 .
↑ Elements of the second subgroup: zinc - cadmium - mercury . Springer-Verlag, 2013, ISBN 978-3-642-48019-5 , pp. 273 ( books.google.de ).
^ Rudolf Sieber: The chemical-technical investigation methods of the pulp and paper industry . Springer-Verlag, 2013, ISBN 978-3-642-92265-7 , pp. 152 ( books.google.de ).

[Y._Mido_&_Iqbal-1] A ^b Y. Mido & Iqbal: Chemistry Of S Block Elements . Discovery Publishing House, 1994, ISBN 978-81-7141-241-9 , pp. 104 ( books.google.de ).

[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.

[F._G._REICHEL-3] F. G. REICHELSHEIM: Inorganic chemistry . In: Journal of the Chemical Society . tape 29 , no. 0 , January 1, 1876, ISSN 0368-1769 , doi : 10.1039 / JS8762900038 .

[4] Elements of the second subgroup: zinc - cadmium - mercury . Springer-Verlag, 2013, ISBN 978-3-642-48019-5 , pp. 273 ( books.google.de ).

[5] Rudolf Sieber: The chemical-technical investigation methods of the pulp and paper industry . Springer-Verlag, 2013, ISBN 978-3-642-92265-7 , pp. 152 ( books.google.de ).