Tuesday, February 12, 2019
Molybdenum :: Chemistry Essay
Molybdenum is a renewing metal. It is representedby the symbol Mo. It is a pure metal that is is silver-tongued white in color and very hard, and has one ofthe highest melting points of either pure elements at4753 F. Its boiling point is 8382 F. Its density is10280 kg/m3 and its toughness is 5.5. It has a molarvolume of 9.38 10-6 m3/mol.Molybdenum has an nuclear weight of 95.94 amu. Itsatomic number is 42. The atomic roentgen is 145 pm andthe covalent radius is 145 pm also. Its electronconfiguration is Kr4d5 5s1. It is a blind drunk acid.Its crystal structure is body centered cubic.Over 2/3 of all molybdenum is used in alloys.Molybdenum use change magnitude a lot during World War I,when demand for tungsten make tungsten rare, andstrong steels were at expensive. Molybdenum is used inaircraft and missile parts, and in filaments.Molybdenum acts as a catalyst in the fossil oilindustry for removing organic sulfurs from petroleumproducts.Molybdenum is not found in nature, and the compoundsthat can be found were, until the late 1700s confusedwith other elements, much(prenominal) as carbon and lead. In 1778Carl Wilhelm Scheele discovered that molybdenum wasseparate from black lead and lead, and was able toisolate the oxide of the metal from molybdenite.Molybdenum was rarely used and stayed in thelaboratory until the late 19th century.Plants and animals generally have molybdenum, presentin very small amounts.