Barium hydride (BaH2) cas no:13477-09-3

NameBarium hydride (BaH2)
CAS13477-09-3
SynonymsBariumdihydride; Barium hydride
EINECS(EC#)236-763-3
Molecular FormulaBaH2
Molecular Weight139.343

Hazardclass4.3

Safety

A poison. Rapidly decomposed by water and acids. In powder form, it ignites spontaneously in air and reacts vigorously with water. Coarser material ignites when heated in oxygen. Moisture-sensitive, reacts with H₂O with formation of Ba(OH)₂ and H₂. Decomp on heating with evolution of H₂ gas and formation of Sr. It is incompatible with water; acids; and metal halogenates. A dangerous fire hazard because moisture may cause it to ignite. To fight fire, use dry chemical, graphite, CO₂. See also BARIUM COMPOUNDS (soluble) and HYDRIDES. 
Risk Statements:
R15:Contact with water liberates extremely flammable gases. 
Safety Statements:
S7/8:Keep container tightly closed and dry. 
S24/25:Avoid contact with skin and eyes. 
S43:In case of fire use ... (there follows the type of fire-fighting equipment to be used.)
RIDADR: 1409
HazardClass: 4.3
PackingGroup: II