| Origin of Name |
From the Greek word barys, meaning heavy |
| Date and Place of Discovery |
Identified in 1774 (Scheele)
Isolated in 1808 in London (Davy) |
| Discovered by |
Carl Wilhelm Scheele
Sir Humphrey Davy |
| Common Compounds |
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| Interesting facts |
- All barium compounds that will dissolve in water or acid are poisonous
- It oxidizes in air.
- It reacts in water and forms hydroxide.
- When it burns in air, peroxide is formed.
- It ignites when exposed to moist air.
- It will react with most nonmetals.
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| Common Uses |
- Spark plugs
- X-ray imaging agent
- Vacuum tubes
- Fireworks (the green color)
- Fluorescent lamps
- Glass and pottery glaze
- Rubber
- Rat poison
- Paint pigment
- Safety matches
- Water softener
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