1 janv. 1808 - Calcium

Description:

-It is possible to extract calcium from calcium carbonate through a multi-stage process requiring specific equipment. Pure calcium reacts almost instantly with the oxygen in the air, so you must store it in a non-reactive atmosphere.

-Discovered during the contemporary history modern (metal age). It describes the historical period from approximately 1945 to the present.

-Calcium can be used as an alloying agent for many other metals.
-Found in dairy