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Aluminium

Published on Dec 24, 2015

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PRESENTATION OUTLINE

Aluminium

Perla & Hernan
Photo by cbcastro

The use of aluminium

  • Used for cans, foils, kitchen utensils and other items
  • Used in transmission lines
  • used in construction such as rods and doors
Photo by wstryder

-Aluminum was considered more rare and precious than gold in the 19th century
-Aluminum was found from extracting in a ore
-Found in 1825 by danish chemist Hans Christian
-Techniques to produce aluminum emerged in 1889
-During ancient times aluminum oxide was used for fabric dying

Chemical properties

  • Resistant to corrosion
  • Forms aluminum oxide when combined with oxygen
  • Reacts with hot acid
  • Reacts with alkalis
Photo by 96dpi

Physical properties

  • Melting point: 660ºc/1220ºf
  • Ductile and malleable
  • Good electrical conductor
  • Density 2.708
Photo by musicanys

Concentration of Aluminum

  • 8.1% of the earth's crust
Photo by wbaiv

Interesting facts

  • The first person to produce aluminium was Hans.
  • Aluminum became a strategic metal in WW11
  • Second-most abundant metallic element in Earth's crust
  • Aluminum forms in stars in a fusion reaction
  • About 75 percent of all aluminum ever made is still in use