___ Handling

The information in this section is intended to outline potential hazards associated with the use of barium and barium/aluminum alloys. More importantly, appropriate advice for secure handling is supplied which will help the reader to safely use our products.
All information is given to the best of our knowledge and according to the present state of the art, but this does not exclude the user from his responsibility to check all risks of application and handling himself. It is recommended that processes in which handling of such materials is involved should additionally be reviewed by occupational safety specialists.
Barium/aluminum-alloy powder (< 45 µm) can be ignited by sparks, friction or electric discharge energy.
Dry barium/aluminum-alloy powders present a dust explosion hazard.
In case of fire use extinguishing powders on the basis of NaCl (e.g. Totalit M) or pulverized lime stone. Never use water, carbon dioxide or carbon halides.

Due to its reactive nature barium must be handled with care.
The pure metal is classified as "Barium, UN #1400" and the commercial alloy, 55% Ba and 45% Al, is classified as "alkaline earth metals n.o.s. (not otherwise specified), UN #1393", for the purpose of transportation. Transportation of these materials requires special approved packaging.
Usually barium is packed under argon or paraffin oil and can be handled under inert atmosphere to prevent formation of an oxide coating. If appropriate regulations and special safety precautions are observed, barium/aluminum-alloy can be handled safely in dry air (moisture content < 40 %).

Barium is a strong reducing agent and forms hydrogen gas when in contact with water. Barium and also barium/aluminum-alloy are therefore classified as flammable solids. They are Class 4.3 materials, i.e., these materials liberate flammable gases when in contact with water.

Barium and barium/aluminum-alloys should be stored in a well ventilated dry place, avoiding all contact with water.
It is recommended that protective gloves and glasses should be worn when handling these materials.