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Barium
Barium

Hafnium
Hafnium



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Hafnium

Facts About Barium and Hafnium

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Facts

Interesting Facts

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Who Discovered

Discovery

Abundance In Universe

Abundance In Sun

Abundance In Meteorites

Abundance In Earth's Crust

Abundance In Oceans

Abundance In Humans

 
  • Barium oxidizes very easily in the air.
  • All toxic compounds of Barium can easily dissolve in water.
  • Barium carbonate is used to produce a Rat poison and its other compound Barium nitrate is used in fireworks to produce green color.
Earth's crust, Found in Minerals, Mining, Ores of Minerals
Carl Wilhelm Scheele
In 1772
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  • Hafnium metal is highly reactive, hence not found free in nature.
  • Hafnium metal as predicated after Mendeleev finished his periodic table.
By-product Zirconium Refining
Dirk Coster and George de Hevesy
In 1922
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