Tungsten
Information
HISTORY
- Brothers Fausto and Juan Jose de Elhuyar discovered tungsten, in Spain, by reducing acidified wolframite with charcoal
PROPERTIES
1. Hard but brittle metal
2. Highest boiling point of any metals at 5,555 Degrees Celsius
3. Very high tensile strength at temperatures over 1650 Degrees Celsius
USES
- Used in many high temperature applications, such as arc-welding electrodes and heating elements in high-temperature furnaces
- Important for metal working, mining, and petroleum industries
- Lighting element of light bulbs
COMPOUNDS
1. Tungsten (III) Oxide - W2O3
2. Tungsten (VI) Phosphate - W(PO4)2
3. Tungsten (VI) Sulfate - W(SO4)3
PERIODIC TABLE INFORMATION
Isotopes
Most abundant:
W- 182 W- 183 W- 186
Visual Model
PROPERTIES OF TRANSITION METALS
- Good Conductors of heat and electricity
- Easily hammered and bent in to shape
- Less reactive than alkali metals like sodium
- High melting and boiling points
- Very high densities
Acrostic Poem
U seful
N on-Toxic
G rey
S olid
T wo Valence Electrons
E lhuyar
N ozzles of rocket engines
Tungsten Carbide
Formula
Synthesis Reaction
Mol Ratio- 1 W : 1 C : 1 WC
Tungsten Puzzle
Sources
"The Transition Metals." BBC News. BBC Worldwide, n.d. Web. <http://www.bbc.co.uk/schools/gcsebitesize/science/edexcel_pre_2011/patterns/transitionmetalsrev1.shtml>.
Google Images
"Tungsten - Element Information, Properties and Uses | Periodic Table."Tungsten - Element Information, Properties and Uses | Periodic Table. Royal Society of Chemistry, n.d. Web. 05 May 2016.
<http://www.rsc.org/periodic-table/element/74/tungsten>
"Periodic Table of Elements." : Tungsten. Environmental, n.d. Web. 05 May 2016. <http://environmentalchemistry.com/yogi/periodic/W.html#Physical>.
"TUNGSTEN." Tungsten, Chemical Element. Chemistry Explained, n.d. Web. 05 May 2016. <http://www.chemistryexplained.com/elements/T-Z/Tungsten.html>.
Tungsten Dichloride
- WCL2
- W- 72.17%
- CL- 27.83%