13 juin 1807 - sodium
Description:
-Sodium is extracted from molten sodium chloride in a Down's cell. The sodium chloride is mixed with calcium chloride to lower its melting point. The two elements are kept apart by a steel gauze in the cell.
-Discovered during the contemporary history modern (metal age). It describes the historical period from approximately 1945 to the present.
-Sodium is used for:
-making salt
-washing soda
Ajouté au bande de temps:
Metals timeline
Date:
Les images:
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