High amounts of barium may only be found in soils and in food, such as nuts, seaweed, fish and certain plants.īecause of the extensive use of barium in the industries human activities add greatly to the release of barium in the environment. Barium nitrate and clorate give fireworks a green colour.īarium is surprisingly abundant in the Earth's crust, being the 14th most abundant element. Drilling mud simplifies drilling through rocks by lubricating the drill.īarium compounds are also used to make paint, bricks, tiles, glass, and rubber. It is also used in fluorescent lamps: impure barium sulfide phosphoresces after exposure to the light.īarium compounds are used by the oil and gas industries to make drilling mud. Barium reacts with almost all the non-metals, forming often poisouning compounds.īarium is often used in barium-nickel alloys for spark-plug electrodes an in vacuum tubes as drying and oxygen-removing agent. Barium oxidizes in air, reacts vigoroulsy with water to form the hydroxide, liberating hydrogen. Ii is very light and its density is half that of iron. It occurs combined with other chemicals, such as sulfur, carbon or oxygen.
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