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Emily Lambert, Jesse Mitchell, Morgan McKnight, Haylee Downton
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o Peter Woulfe gathered the existence of Tungsten from his analysis of wolframite in 1779. o Tungsten was isolated as tungstic oxide by Carl W. Scheele from scheelite in 1781. But he did not have a reason furnace to reduce the oxide to metal. o Tungsten was lastly isolated in 1783 by two chemist and brothers in Spain, Fausto and Juan Jose de Elhuyar. They did this by reduction of acidified wolframite with charcoal. o The name “Tungsten” means heavy stone.
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o The word “Tungsten” comes from the words “Tung” and “Sten”. Those are Swedish words. They mean heavy stone. o Tungsten carbide was used by Osram, a German company. This was used in place of diamond drawing dies. o During World War 2, Tungsten carbide was needed for its weaponry production.
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o Tungsten has been used by porcelain makers in China more than 350 years ago. They integrated a peach color in their designs by using a tungsten pigment. o During World War 2
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Symbol: W Atomic Number: 74 Atomic Mass: 183.84 amu Color: silver white
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Boiling Point: 5660°C Melting Point: 3410°C At room temperature it is a solid. Its classified as a metal. It conducts electricity. When mixed Thorium it becomes radioactive, and is dangerous to anyone who is exposed to it. Also has the ability to shield radiation.
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The dust of tungsten is flammable. The dust of tungsten is explosive. It does corrode if temperatures are above 400°C. Tungsten reacts with halogens- fluorine and chlorine. Tungsten doesn’t react with air, water, acids, and bases.
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o Tungsten has/are used for… Filaments for incandescent light bulbs, fluorescent light bulbs, and television tubes Jewelry Used as a target for X-ray production Heating elements in electric furnaces Parts of spacecraft and missiles
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Symbol is from Wolfram. Latin- Wolframium Swedish- Volfram French- Tungstene Portuguese- Tungstenio Has the highest melting point and boiling point of all metals. Has the lowest vapor pressure. Western Europe owns 30% of the worlds Tungsten, North America and China own 25%, Japan owns 13%. The remaining resources are in smaller countries. Wolframite means “the devourer of tin”. Pure Tungsten is soft and Tungsten Carbide is extremely hard.
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https://www.youtube.com/watch?v=K1P8LpzFbh8 https://www.youtube.com/watch?v=K1P8LpzFbh8
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o What did the mole say when his friends crashed the party? The mole the merrier! o What kind of chip dip do you use on mole day? GuacaMOLe! o Why is Avogadro in love with Cindy Crawford? She's his favorite super-mole-dle (and she has a mole). o How much does Avogadro exaggerate? He makes mountains out of mole hills
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o Advameg, Inc. "Chemistry Explained." Tungsten, Chemical Element. N.p., 2014. Web. 16 Oct. 2014 o Cannon Jennifer. ehow.com. Ehow. nd. Web. 14 Oct. 2014. o chemicool.com. Chemicool. nd. Web. 14 Oct 2014. o education.jlab.org. Jefferson Lab. nd. Web. 14 Oct 2014. o Elderfield & Hall, Inc. "Thoriated Tungsten Radioactivity." Pro-Fusion. N.p., n.d. Web. 16 Oct. 2014 o Gagnon, Steve. "The Element Tungsten." It's Elemental -. Jefferson Labs, n.d. Web. 16 Oct. 2014 o Live Science Staff. livescience.com. Livescience. 19 Aug 2013.Web. 14 Oct 2014. o purdue.edu.com. Purdue Owl. nd. Web. 14 Oct 2014. o rsc.org. Royal Society of Chemistry. nd. Web. 14 Oct 2014. o Tungsten World. "Tungsten Rings Hammer Test Vs. Titanium Rings Vs. Gold Rings - Tungsten World Reviews." YouTube. YouTube, 15 Apr. 2009. Web. 16 Oct. 2014 o Winter, Mark. webelements.com. WebElements. nd. Web. 14 Oct 2014.
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