Strontium hydride

Strontium hydride
Names
	IUPAC name Strontium hydride
Identifiers
CAS Number	13598-33-9 [PubChem];
3D model (JSmol)	Interactive image;
ChemSpider	16787720;
ECHA InfoCard	100.033.681
EC Number	237-065-1;
PubChem CID	83606;
UN number	1409
	InChI InChI=1S/Sr.2H Key: ONYCUIABXVBCTR-UHFFFAOYSA-N; InChI=1/Sr.2H/rH2Sr/h1H2;
	SMILES [SrH2];
Properties
Chemical formula	SrH2
Molar mass	89.64 g·mol−1
Appearance	white crystal
Solubility in water	reacts (produces hydrogen gas and strontium hydroxide
Vapor pressure	8 mmHg (1.1 kPa) (99% purity, 700 °C (1,292 °F))
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H228, H260, H314
Precautionary statements	P101, P102, P103, P231+P232, P303+P361+P353, P305+P351+P338, P403+P233, P422, P501
Related compounds
Other cations	beryllium hydride; magnesium hydride; calcium hydride; barium hydride;
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Strontium hydride is an inorganic compound with a chemical formula SrH₂.

Preparation

Strontium hydride can be prepared by combining strontium and hydrogen:^[2]

Sr + H₂ → SrH₂

This reaction must be performed in oxygen free conditions. Optimal yields (99%+) were only achieved with redistilled strontium at temperatures between 200 and 250 °C (392 and 482 °F) using hydrogen prepared electrolytically, with all oxygen catalytically removed, and dried by passing through phosphorus pentoxide (P₂O₅).^[2]

Strontium hydride reacts with water and produces hydrogen and strontium hydroxide:

SrH₂ + 2 H₂O → 2 H₂ + Sr(OH)₂

References

1 2 "SDS - Strontium hydride 99.5%" (PDF). sds.strem.com. Newburyport, MA: STREM Chemicals, Inc. 17 July 2021. Retrieved 17 June 2026.
1 2 Häuptli, Gerard (1957). Ueber die Reindarstellung von Strontium und Strontiumhydrid und die Bestimmung des Dissoziationsdruckes des Hydrides [On the Preparation of Pure Strontium and Strontium Hydride and the Determination of the Dissociation Pressure of the Hydride] (pdf) (PhD thesis) (in German). ETH Zurich. pp. 33–34. doi:10.3929/ethz-a-000096715. hdl:20.500.11850/134376.

[StremSDS-1] 1 2 "SDS - Strontium hydride 99.5%" (PDF). sds.strem.com. Newburyport, MA: STREM Chemicals, Inc. 17 July 2021. Retrieved 17 June 2026.

[Hauptli-2] 1 2 Häuptli, Gerard (1957). Ueber die Reindarstellung von Strontium und Strontiumhydrid und die Bestimmung des Dissoziationsdruckes des Hydrides [On the Preparation of Pure Strontium and Strontium Hydride and the Determination of the Dissociation Pressure of the Hydride] (pdf) (PhD thesis) (in German). ETH Zurich. pp. 33–34. doi:10.3929/ethz-a-000096715. hdl:20.500.11850/134376.

[1]

[2]