1 Facts
1.1 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.
- Osmium metal does not oxidize in air unless it is heated.
- But if it heated den it forms Osmium Tetroxide, which is highly toxic.
1.2 Sources
Found in Minerals, Mining, Ores of metals, Ores of Minerals
Found As a By-product, Found in Minerals, Mining
1.3 History
1.3.1 Who Discovered
Louis Nicolas Vauquelin
Smithson Tennant
1.3.2 Discovery
In Between 1797 - 1798
In 1803
1.4 Abundance
1.4.1 Abundance In Universe
1.5 * 10-3 %3 * 10-7 %
5E-09
0.11
1.4.2 Abundance In Sun
~0.002 %~0.0000002 %
1E-08
0.1
1.4.3 Abundance In Meteorites
1.4.4 Abundance In Earth's Crust
1.4.5 Abundance In Oceans
1.4.6 Abundance In Humans