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Facts About Chromium and Iridium


Facts About Iridium and Chromium


Facts

Interesting Facts
  • Chromium is highly reactive, hence it is not found free in nature.
  • Ores of Chromites mineral are the major source of Chromium metal.
  • Almost 90% leather tanning is done with the help of chromium.
  
  • Iridium element occurs as natural alloys of Platinum and Osmium.
  • Iridium element is known as the most corrosion resistance metal .
  

Sources
Found in Minerals, Mining, Ores of metals, Ores of Minerals   
Found in Minerals, Mining, Ores of Minerals   

History
  
  

Who Discovered
Louis Nicolas Vauquelin   
Smithson Tennant   

Discovery
In Between 1797 - 1798   
In 1803   

Abundance
  
  

Abundance In Universe
1.5 * 10-3 %   
7
2 * 10-7 %   
22

Abundance In Sun
~0.002 %   
7
~0.0000002 %   
25

Abundance In Meteorites
0.30 %   
7
0.00 %   
29

Abundance In Earth's Crust
0.01 %   
13
0.00 %   
99+

Abundance In Oceans
0.00 %   
16
Not Available   

Abundance In Humans
0.00 %   
16
Not Available   

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