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- Barium abstract "Barium is a chemical element with symbol Ba and atomic number 56. It is the fifth element in Group 2, a soft silvery metallic alkaline earth metal. Because of its high chemical reactivity barium is never found in nature as a free element. Its hydroxide was known in pre-modern history as baryta; this substance does not occur as a mineral, but can be prepared by heating barium carbonate.The most common naturally occurring minerals of barium are barite (barium sulfate, BaSO4) and witherite (barium carbonate, BaCO3), both being insoluble in water. Barium's name originates from the alchemical derivative "baryta", which itself comes from Greek βαρύς (barys), meaning "heavy." Barium was identified as a new element in 1774, but not reduced to a metal until 1808, shortly after electrolytic isolation techniques became available.Barium has only a few industrial applications. The metal has been historically used to scavenge air in vacuum tubes. It is a component of YBCO (high-temperature superconductors) and electroceramics, and is added to steel and cast iron to reduce the size of carbon grains within the microstructure of the metal. Barium compounds are added to fireworks to impart a green color. Barium sulfate is used as an insoluble heavy additive to oil well drilling fluid, and in purer form, as X-ray radiocontrast agents for imaging the human gastrointestinal tract. Soluble barium compounds are poisonous due to release of the soluble barium ion, and therefore have been used as rodenticides.".
- Barium thumbnail Barium_1.jpg?width=300.
- Barium wikiPageExternalLink element.php?sym=Ba.
- Barium wikiPageExternalLink oai?verb=getRecord&metadataPrefix=html&identifier=ADA338490.
- Barium wikiPageExternalLink 056.htm.
- Barium wikiPageID "3757".
- Barium wikiPageRevisionID "603485158".
- Barium align "center".
- Barium alt "alt1".
- Barium alt "alt2".
- Barium alt "alt3".
- Barium book "Alkaline earth metals".
- Barium book "Barium".
- Barium book "Chemical elements".
- Barium book "Period 6 elements".
- Barium commons "y".
- Barium footer "Barite, left to right: appearance, graph showing trends in production over time, and the map showing shares of the most important producer countries in 2010.".
- Barium hasPhotoCollection Barium.
- Barium image "Barite.jpg".
- Barium image "BariteWorldProductionUSGS.PNG".
- Barium image "World Baryte Production 2010.svg".
- Barium portal "Chemistry".
- Barium portal "Medicine".
- Barium s "y".
- Barium sSearch "1911".
- Barium v "y".
- Barium vSearch "Barium atom".
- Barium width "180".
- Barium width "246".
- Barium width "376".
- Barium wikt "y".
- Barium wiktSearch "barium".
- Barium subject Category:Alkaline_earth_metals.
- Barium subject Category:Barium.
- Barium subject Category:Chemical_elements.
- Barium subject Category:Reducing_agents.
- Barium subject Category:Toxicology.
- Barium comment "Barium is a chemical element with symbol Ba and atomic number 56. It is the fifth element in Group 2, a soft silvery metallic alkaline earth metal. Because of its high chemical reactivity barium is never found in nature as a free element.".
- Barium label "Bar (pierwiastek)".
- Barium label "Bario".
- Barium label "Bario".
- Barium label "Barium".
- Barium label "Barium".
- Barium label "Barium".
- Barium label "Baryum".
- Barium label "Bário".
- Barium label "Барий".
- Barium label "باريوم".
- Barium label "バリウム".
- Barium label "钡".
- Barium sameAs Baryum.
- Barium sameAs Barium.
- Barium sameAs Βάριο.
- Barium sameAs Bario.
- Barium sameAs Bario.
- Barium sameAs Baryum.
- Barium sameAs Barium.
- Barium sameAs Bario.
- Barium sameAs バリウム.
- Barium sameAs 바륨.
- Barium sameAs Barium.
- Barium sameAs Bar_(pierwiastek).
- Barium sameAs Bário.
- Barium sameAs m.025svml.
- Barium sameAs Q1112.
- Barium sameAs Q1112.
- Barium wasDerivedFrom Barium?oldid=603485158.
- Barium depiction Barium_1.jpg.
- Barium isPrimaryTopicOf Barium.