barium ; bario ; barium aa standard ; bariumelement ; barium, rod ; bario (spanish) ; barium standard ; barium metal ; baryum (french) ; barium solution ; barium element
CAS:
7440-39-3
EINECS:
Molecular Formula:
Ba
MDL:
MFCD00134031
Properties
Molecular Weight:
137.33 g·mol−1
Density:
3.6 g/mL at 25 °C(lit.)
Melting point:
725 °C(lit.)
Boiling point:
1640 °C(lit.)
Solubility:
Insoluble(decomposes)
Physical Description:
rod
Safety Information
Hazard Symbols: Flammable (pyrophoric) at room temperature in powder form; store under inert gas, petroleum, or other oxygen-free liquid. When heated to approximately 200C in hydrogen, barium reacts violently, forming BaH2. TLV: for all soluble barium compounds, 0.5 mg/m3 (as barium).