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Boron (Briana Shandel)
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Boron (Briana Shandel)

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Boron (Briana Shandel) Boron (Briana Shandel) Presentation Transcript

  • History• Boron came from the Arabic language. It comes from the word borax.• Discovered in: France• Discovered By: Sir Humphry Davy, L.J Thermard, and J.L Gay Lussac.
  • Availability• Boron exists in polymorphs• Found as borates in minerals such as boron silicate, kernite, and colemanite.• You must mine these minerals in order to obtain boron.• Turkey, Russia and the US are the largest producers of boron minerals.• Cost – Crystalline boron - $5/g. – Amorphous boron - $2/g.
  • Major Compounds• Borax - (Na2B4O7.10H2O) is used in making fiberglass, as a cleansing fluid, a water softener, insecticide, herbicide and disinfectant.• Boron Nitride- harder then a diamond, used in high temp equipment.• Boron oxide (B2O3) used for glassmaking and ceramics.• Boron carbide (B4C) is used in tank armor and bullet proof vests. View slide
  • Uses• Pyrotechnics: Gives flares the green color.• Igniter in rockets.• In Boric Acid – Antiseptic• In Borax • Cleaning flux in welding • Water softener in washing powders• Boron compounds are used in the manufacturing of glasses. View slide
  • Things to Know• Poor electrical conductor at room temperature but good at high temperatures• Semi metallic or Metalloid• Un-reactive• .
  • Resources• "Boron." Periodic Table of Elements and Chemistry. Web. 12 Nov. 2011. <http://www.chemicool.com/elements/boron.html>.• "Boron | Uses." WebElements Periodic Table of the Elements. Web. 15 Nov. 2011. <http://www.webelements.com/boron/uses.html>.• "Boron." Encyclopedia of Earth. Web. 10 Nov. 2011. <http://www.eoearth.org/article/Boron>.• "Boron Properties." Rare-Earth Magnets. Web. 17 Nov. 2011. <http://www.rareearth.org/boron_properties.htm>.