Emily Lambert, Jesse Mitchell, Morgan McKnight, Haylee Downton.

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Presentation transcript:

Emily Lambert, Jesse Mitchell, Morgan McKnight, Haylee Downton

o Peter Woulfe gathered the existence of Tungsten from his analysis of wolframite in o Tungsten was isolated as tungstic oxide by Carl W. Scheele from scheelite in 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.

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.

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

 Symbol: W  Atomic Number: 74  Atomic Mass: amu  Color: silver white

 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.

 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.

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

 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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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

o Advameg, Inc. "Chemistry Explained." Tungsten, Chemical Element. N.p., Web. 16 Oct o Cannon Jennifer. ehow.com. Ehow. nd. Web. 14 Oct o chemicool.com. Chemicool. nd. Web. 14 Oct o education.jlab.org. Jefferson Lab. nd. Web. 14 Oct o Elderfield & Hall, Inc. "Thoriated Tungsten Radioactivity." Pro-Fusion. N.p., n.d. Web. 16 Oct o Gagnon, Steve. "The Element Tungsten." It's Elemental -. Jefferson Labs, n.d. Web. 16 Oct o Live Science Staff. livescience.com. Livescience. 19 Aug 2013.Web. 14 Oct o purdue.edu.com. Purdue Owl. nd. Web. 14 Oct o rsc.org. Royal Society of Chemistry. nd. Web. 14 Oct o Tungsten World. "Tungsten Rings Hammer Test Vs. Titanium Rings Vs. Gold Rings - Tungsten World Reviews." YouTube. YouTube, 15 Apr Web. 16 Oct o Winter, Mark. webelements.com. WebElements. nd. Web. 14 Oct 2014.