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.
- Calcium ranks 5th rank in the list of earth’s abundance Percentage.
- It is found in the compound state.
- Gypsum or calcium sulfate is used as plaster and plaster of paris.
1.2 Sources
Found in Minerals, Mining, Ores of metals, Ores of Minerals
Earth's crust, Found in Minerals, Mining, Ores of Minerals
1.3 History
1.3.1 Who Discovered
Louis Nicolas Vauquelin
Humphry Davy
1.3.2 Discovery
In Between 1797 - 1798
In 1808
1.4 Abundance
1.4.1 Abundance In Universe
1.5 * 10-3 %7 * 10-3 %
5E-09
0.11
1.4.2 Abundance In Sun
~0.002 %~0.007 %
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