Zinc (II) hydride

General
Surname	Zinc (II) hydride
other names	Zinc hydride; Zinc Hydrogen;
Ratio formula	ZnH 2
Brief description	white solid
External identifiers / databases
PubChem	22056524
Wikidata	Q1056827
properties
Molar mass	67.39 g mol −1
Physical state	firmly
solubility	slow decomposition in water; insoluble in diethyl ether;
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 .

Zinc (II) hydride is an inorganic chemical compound from the group of hydrides .

Extraction and presentation

Zinc (II) hydride can be obtained by reacting zinc (II) iodide or zinc dimethyl with lithium aluminum hydride in ether at low temperatures.

{\ displaystyle \ mathrm {ZnI_ {2} +2 \ LiAlH_ {4} \ longrightarrow ZnH_ {2} +2 \ AlH_ {3} +2 \ LiI}}

{\ displaystyle \ mathrm {Zn (CH_ {3}) _ {2} +2 \ LiAlH_ {4} \ longrightarrow ZnH_ {2} +2 \ LiAlH_ {3} CH_ {3}}}

properties

Zinc (II) hydride is a white solid that reacts with water or humidity, releasing hydrogen . In a vacuum it breaks down into its elements from 90 ° C. In contact with acids and bases it decomposes quickly. Since the valence shell is not completely occupied by zinc, the molecules combine to form a polymer via hydrogen bonds . One speaks of a covalently polymeric hydride.

Individual evidence

↑ ^a ^b ^c ^d Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3 , p. 1024.
↑ ^a ^b Roger Blachnik (Ed.): Pocket book for chemists and physicists . Volume III: Elements, Inorganic Compounds and Materials, Minerals . founded by Jean d'Ans, Ellen Lax. 4th, revised and revised edition. Springer, Berlin 1998, ISBN 3-540-60035-3 , pp. 810 f . ( limited preview in Google Book search).
↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
^ Uwe Böhme: Chemistry for engineers . John Wiley & Sons, 2012, ISBN 3-527-70682-8 , pp. 130 ( limited preview in Google Book search).

[brauer-1] Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3 , p. 1024.

[Jean_d'._Ans,_Ellen_Lax,_Roger_Blachnik-2] Roger Blachnik (Ed.): Pocket book for chemists and physicists . Volume III: Elements, Inorganic Compounds and Materials, Minerals . founded by Jean d'Ans, Ellen Lax. 4th, revised and revised edition. Springer, Berlin 1998, ISBN 3-540-60035-3 , pp. 810 f . ( limited preview in Google Book search).

[NV-3] This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.

[Uwe_Böhme-4] Uwe Böhme: Chemistry for engineers . John Wiley & Sons, 2012, ISBN 3-527-70682-8 , pp. 130 ( limited preview in Google Book search).