Facts About Osmium and Thallium
Interesting Facts
- Osmium metal does not oxidize in air unless it is heated.
- But if it heated den it forms Osmium Tetroxide, which is highly toxic.
  
- Compounds of Thallium metal are highly Toxic.
- Thallium metal is being suspected as a human carcinogen.
  
Sources
Found As a By-product, Found in Minerals, Mining
  
Found As a By-product, Ores of metals, Ores of Minerals
  
History
  
  
Who Discovered
Smithson Tennant
  
William Crookes
  
Discovery
In 1803
  
In 1861
  
Abundance
  
  
Abundance In Sun
~0.0000002 %
  
25
~0.0000001 %
  
26
Abundance In Earth's Crust
Abundance In Oceans
Not Available