Facts About Osmium and Hafnium
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.
- Hafnium metal is highly reactive, hence not found free in nature.
- Hafnium metal as predicated after Mendeleev finished his periodic table.
Sources
Found As a By-product, Found in Minerals, Mining
By-product Zirconium Refining
Who Discovered
Smithson Tennant
Dirk Coster and George de Hevesy
Discovery
In 1803
In 1922
Abundance In Earth's Crust
Abundance In Oceans
Not Available