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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 with the advent of electrolysis.Barium has only a few industrial applications. The metal has been historically used as a getter for 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, as well as 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 wikiPageLength "28826".
- Barium wikiPageOutDegree "150".
- Barium wikiPageRevisionID "679875263".
- Barium wikiPageWikiLink Age_of_the_Universe.
- Barium wikiPageWikiLink Age_of_the_universe.
- Barium wikiPageWikiLink Alkaline_earth_metal.
- Barium wikiPageWikiLink Aluminium.
- Barium wikiPageWikiLink Aluminothermic_reaction.
- Barium wikiPageWikiLink Ammonia.
- Barium wikiPageWikiLink Ammonium_chloride.
- Barium wikiPageWikiLink Antoine_Lavoisier.
- Barium wikiPageWikiLink Anxiety.
- Barium wikiPageWikiLink Atomic_number.
- Barium wikiPageWikiLink Augustus_Matthiessen.
- Barium wikiPageWikiLink Baritosis.
- Barium wikiPageWikiLink Barium_carbonate.
- Barium wikiPageWikiLink Barium_chloride.
- Barium wikiPageWikiLink Barium_fluoride.
- Barium wikiPageWikiLink Barium_hydroxide.
- Barium wikiPageWikiLink Barium_meal.
- Barium wikiPageWikiLink Barium_metasilicate.
- Barium wikiPageWikiLink Barium_nitrate.
- Barium wikiPageWikiLink Barium_oxide.
- Barium wikiPageWikiLink Barium_peroxide.
- Barium wikiPageWikiLink Barium_sulfate.
- Barium wikiPageWikiLink Barium_titanate.
- Barium wikiPageWikiLink Baryte.
- Barium wikiPageWikiLink Bearing_alloy.
- Barium wikiPageWikiLink Benign.
- Barium wikiPageWikiLink Benignity.
- Barium wikiPageWikiLink Benitoite.
- Barium wikiPageWikiLink Beta_decay.
- Barium wikiPageWikiLink Bioaccumulation.
- Barium wikiPageWikiLink Body-centered_cubic.
- Barium wikiPageWikiLink Bologna.
- Barium wikiPageWikiLink Brin_process.
- Barium wikiPageWikiLink Calcium.
- Barium wikiPageWikiLink California.
- Barium wikiPageWikiLink Carbonate.
- Barium wikiPageWikiLink Carl_Scheele.
- Barium wikiPageWikiLink Carl_Wilhelm_Scheele.
- Barium wikiPageWikiLink Category:Alkaline_earth_metals.
- Barium wikiPageWikiLink Category:Barium.
- Barium wikiPageWikiLink Category:Chemical_elements.
- Barium wikiPageWikiLink Category:Reducing_agents.
- Barium wikiPageWikiLink Category:Toxicology.
- Barium wikiPageWikiLink Cathode_ray_tube.
- Barium wikiPageWikiLink Cathode_ray_tubes.
- Barium wikiPageWikiLink Chalcogen.
- Barium wikiPageWikiLink Chemical_element.
- Barium wikiPageWikiLink China.
- Barium wikiPageWikiLink Chloride.
- Barium wikiPageWikiLink Copper.
- Barium wikiPageWikiLink Cubic_crystal_system.
- Barium wikiPageWikiLink Cumberland.
- Barium wikiPageWikiLink Drilling_fluid.
- Barium wikiPageWikiLink Dyspnea.
- Barium wikiPageWikiLink Electroceramic.
- Barium wikiPageWikiLink Electroceramics.
- Barium wikiPageWikiLink Electrode.
- Barium wikiPageWikiLink Electron.
- Barium wikiPageWikiLink England.
- Barium wikiPageWikiLink Exothermic_reaction.
- Barium wikiPageWikiLink Flame_test.
- Barium wikiPageWikiLink Fluorescent_lamp.
- Barium wikiPageWikiLink Fluoride.
- Barium wikiPageWikiLink Fractional_distillation.
- Barium wikiPageWikiLink Froth_flotation.
- Barium wikiPageWikiLink Getter.
- Barium wikiPageWikiLink Greek_language.
- Barium wikiPageWikiLink Group_2_organometallic_chemistry.
- Barium wikiPageWikiLink Guyton_de_Morveau.
- Barium wikiPageWikiLink Halide.
- Barium wikiPageWikiLink Han_purple_and_Han_blue.
- Barium wikiPageWikiLink High-temperature_superconductivity.
- Barium wikiPageWikiLink High-temperature_superconductor.
- Barium wikiPageWikiLink Humphry_Davy.
- Barium wikiPageWikiLink Hydride.
- Barium wikiPageWikiLink Intermetallic.
- Barium wikiPageWikiLink Intermetallic_compound.
- Barium wikiPageWikiLink Intermetallics.
- Barium wikiPageWikiLink Ion.
- Barium wikiPageWikiLink Italy.
- Barium wikiPageWikiLink Johan_Gottlieb_Gahn.
- Barium wikiPageWikiLink Lead.
- Barium wikiPageWikiLink Lithopone.
- Barium wikiPageWikiLink Louis-Bernard_Guyton_de_Morveau.
- Barium wikiPageWikiLink Lower_gastrointestinal_series.
- Barium wikiPageWikiLink Medical_imaging.
- Barium wikiPageWikiLink Meta_state.
- Barium wikiPageWikiLink Metal.
- Barium wikiPageWikiLink Mineral.
- Barium wikiPageWikiLink Mohs_hardness.
- Barium wikiPageWikiLink Mohs_scale_of_mineral_hardness.