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THALLIUM

CM

Chem Miramar

Transcript

Thallium was discovered independently by two different men. In 1861 Sir William Crookes identified it spectroscopically, while Claude-Auguste Lamy isolated it

THALLIUM

Atomic Structure

Toxic

but Beautiful

INTERESTING FACTS

Basic Information

Elements of the Periodic Table

by Kelly Remington

  • It is named after the bright green spectral emission lines that lead to its discovery
  • It is soft enough to be cut with an ordinary knife at room temperature
  • Because it is odorless and tasteless it was widely used a means of murder
  • Prussian Blue and Sodium Iodide are antidotes for Thallium Poisoning
  • Although it is very toxic, it was used to treat some medical conditions in the late 1800s (syphilis, gonorrhea & gout)

Did You Know?

Symbol: Tl

Atomic Number: 81

Group: 13

Period: 6

Atomic Mass: 204.38

Family: Metals

Melting Point: 303.5°C

Boiling Point: 1457 °C

Physical Characteristics

Common Uses

  • As the main ingredient in rat poison (banned after 1972)
  • In low-temperature Thermometers
  • As a superconductor for MRIs
  • In glass with a high index of refraction

Thallium has a bluish tint that is very soft, easily melts and oxidizes rapidly

BIBLIOGRAPHY

  • Thallium (revised). Chemical Elements: From Carbon to Krypton Available at: http://www.encyclopedia.com/science-and-technology/chemistry/compounds-and-elements/thallium. (Accessed: 9th May 2017)
  • Thallium. National Center for Biotechnology Information. PubChem Compound Database Available at: https://pubchem.ncbi.nlm.nih.gov/compound/thallium#section=Top. (Accessed: 9th May 2017)
  • wwwperiodictableru. Thallium flame color. YouTube (2010). Available at: (Accessed: 9th May 2017)
  • webmaster@chemicalelements.com, Y. B.-. Chemical Elements.com - Thallium (Tl). Chemical Elements.com - Thallium (Tl) Available at: http://www.chemicalelements.com/elements/tl.html. (Accessed: 9th May 2017)
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