Discovered by Carl Wilhelm Scheele of Sweden in 1778, molybdenum is one of the most COMPLICATED elements to pronounce (at least for me). The word comes from the German word molybdenum, which means 'lead'. As for pronunciation, it is pronounced 'mah-lib-deh-num'. It is a pretty, silver-white metal that is relatively hard.
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| Molybdenum sulfide |
Molybdenum is a very important alloying agent that contributes to the toughness of quenched and tempered steel. It also improves the normally low strength of steel at high temperatures. Molybdenum forms salts with valencies of 3, 4, or 6, but the hexavalent salts are the most stable. It's sulfides are used as a lubricant, especially when there are high temperatures where oils would normally decompose.
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