Hazard 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).
Risk R25
Safety
Hazard Codes of Barium (CAS NO.7440-39-3):?
C,
Xi,
F
Risk Statements: 25-26-34-36/37/38-14/15-11?
R25: Toxic if swallowed.?
R26: Very toxic by inhalation.?
R34: Causes burns.?
R36/37/38: Irritating to eyes, respiratory system and skin.?
R14 :Reacts violently with water.?
R15: Contact with water liberates extremely flammable gases.?
R11: Highly flammable.
Safety Statements: 23-26-36/37/39-45-43-16?
S23: Do not breathe vapour.?
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.?
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection.?
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)?
S43: In case of fire use ... (there follows the type of fire-fighting equipment to be used.)?
S16: Keep away from sources of ignition.
RIDADR: UN 3264 8/PG 3
WGK Germany: 3
RTECS: CQ8370000
HazardClass: 8
PackingGroup: III
Water and stomach acids solubilize barium salts and can cause poisoning. Symptoms are vomiting, colic, diarrhea, slow irregular pulse, transient hypertension, and convulsive tremors and muscular paralysis. Death may occur in a few hours to a few days. Half-life of barium in bone has been estimated at 50 days. Dust is dangerous and explosive when exposed to heat, flame, or chemical reaction. Violent or explosive reaction with water, CCl4, fluorotrichloromethane, trichloroethylene, and C2Cl4. Incompatible with acids, C2Cl3F3, C2H2FCl3, C2HCl3 and water, 1,1,2-trichlorotrifluoroethane, and fluorotrichloroethane. The powder may ignite or explode in air or other oxidizing gases.
