Barium hydride

Barium hydride is a chemical compound with the chemical formula BaH₂.^[1]

Barium hydride

Identifiers
CAS Number	13477-09-3
ChEBI	CHEBI:32592 Y
ChemSpider	26408 Y
ECHA InfoCard	100.033.407
PubChem CID	5483624
CompTox Dashboard (EPA)	DTXSID001014393
InChI InChI=1S/Ba.2H/q+2;2*-1 Y Key: RQPZNWPYLFFXCP-UHFFFAOYSA-L Y InChI=1S/Ba.2H/q+2;2*-1 Key: BPYQMQIZFKTCMA-UHFFFAOYSA-N
Properties
Chemical formula	BaH2
Molar mass	139.343 g/mol
Appearance	white to gray crystals
Density	4.16 g/cm3
Melting point	675 °C (1,247 °F; 948 K) decomposes
Solubility in water	Reaction
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Preparation and structure

Barium hydride can be prepared by reacting elemental barium with hydrogen at relatively high temperatures between 150-200 °C:^{[2][clarification needed]}

Ba + H₂ → BaH₂

Reactions

Barium hydride reacts with oxygen and water. It is easily explosive when it is mixed with a solid oxidant such as a halide or chromate.^[3]