Strontium hydride

Crystal structure
	__ Sr 2+ __ H -
General
Surname	Strontium hydride
other names	Strontium dihydride
Ratio formula	SrH 2
Brief description	white to gray odorless solid
External identifiers / databases
EC number	237-065-1
ECHA InfoCard	100,033,681
PubChem	83606
Wikidata	Q4138050
properties
Molar mass	89.63 g mol −1
Physical state	firmly
density	3.72 g cm −3
Melting point	675 ° C (decomposition)
solubility	Decomposes in water
safety instructions
H and P phrases	H: 228-260-314
	EUH: 014
	P: 101-102-103-231 + 232-303 + 361 + 353-305 + 351 + 338-403 + 233-422-501
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Strontium hydride is an inorganic chemical compound of strontium from the group of hydrides .

Extraction and presentation

Strontium hydride can be obtained by reacting strontium with hydrogen at 250 ° C.

{\ displaystyle {\ ce {Sr + H2 -> SrH2}}}

properties

Strontium hydride is a white, very brittle and extremely moisture-sensitive salt. In water it is currently decomposing with evolution of hydrogen. The reaction is stormy and ends after a few seconds.

{\ displaystyle {\ ce {SrH2 + 2 H2O -> Sr (OH) 2 + 2 H2}}}

In absolute alcohol the hydride also decomposes with evolution of hydrogen , but more slowly than in water.

The compound has an orthorhombic crystal structure similar to that of calcium hydride . In a hydrogen atmosphere, the compound sublimes at 1000 ° C.

Individual evidence

↑ ^a ^b ^c ^d ^e Gerard Häuptli: About the pure representation of stontium and strontium hydride and the determination of the dissociation pressure of the hydride , 1957, doi : 10.3929 / ethz-a-000096715 .
↑ ^a ^b ^c data sheet Strontium hydride (PDF) from Strem, accessed on October 18, 2018.
↑ Dale L. Perry: Handbook of Inorganic Compounds . CRC Press, 2016, ISBN 978-1-4398-1462-8 , pp. 492 ( limited preview in Google Book search).
^ ^A ^b Richard C. Ropp: Encyclopedia of the Alkaline Earth Compounds . Newnes, 2012, ISBN 0-444-59553-8 , pp. 25 ( limited preview in Google Book search).
↑ BL Shaw: Inorganic Hydrides The Commonwealth and International Library: Chemistry Division . Elsevier, 2013, ISBN 978-1-4831-6032-0 , pp. 17 ( limited preview in Google Book search).

[Gerard_Häuptli-1] Gerard Häuptli: About the pure representation of stontium and strontium hydride and the determination of the dissociation pressure of the hydride , 1957, doi : 10.3929 / ethz-a-000096715 .

[strem-2] ta sheet Strontium hydride (PDF) from Strem, accessed on October 18, 2018.

[Dale_L._Perry-3] Dale L. Perry: Handbook of Inorganic Compounds . CRC Press, 2016, ISBN 978-1-4398-1462-8 , pp. 492 ( limited preview in Google Book search).

[Richard_C._Ropp-4] A ^b Richard C. Ropp: Encyclopedia of the Alkaline Earth Compounds . Newnes, 2012, ISBN 0-444-59553-8 , pp. 25 ( limited preview in Google Book search).

[B._L._Shaw-5] BL Shaw: Inorganic Hydrides The Commonwealth and International Library: Chemistry Division . Elsevier, 2013, ISBN 978-1-4831-6032-0 , pp. 17 ( limited preview in Google Book search).