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Barium - Wikipedia, the free encyclopedia (705 words) |
 | Barium is a chemical element in the periodic table that has the symbol Ba and atomic number 56. |
| Its oxide is historically known as baryta but it reacts with water and carbon dioxide and is not found as a mineral. |
| Barium oxide is used in a coating for the electrodes of fluorescent lamps, which facilitates the release of electrons. |
| barium. The Columbia Encyclopedia, Sixth Edition. 2001-05 (348 words) |
| Barium is often used in barium-nickel alloys for spark-plug electrodes and in vacuum tubes as a drying and oxygen-removing agent. |
| Barium carbonate is used in glass, as a pottery glaze, and as a rat poison. |
| Barium oxide strongly absorbs carbon dioxide and water; it is used as a drying agent. |
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