molybdenum
Noun
Meaning
A rare element of the chromium group, occurring in nature in the minerals molybdenite and wulfenite, and when reduced obtained as a hard, silver-white, difficulty fusible metal. Symbol Mo. Atomic weight 95.9.
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Copper and molybdenum show a strong correlation coefficient of 0.92.
Blaylock Wellness Report, February 2010, page 3. citation The human body contains about 0.07 mg of molybdenum per kilogram of body weight, citation with higher concentrations in the liver and kidneys and in lower in the vertebrae.
Characteristics Physical properties In its pure form, molybdenum is a silvery-grey metal with a Mohs hardness of 5.5.
Although oxygen once promoted nitrogen fixation by making molybdenum available in water, it also directly poisons nitrogenase enzymes.
At least 50 molybdenum enzymes are now known in bacteria and animals, although only bacterial and cyanobacterial enzymes are involved in nitrogen fixation.
;Crankshaft :One-piece, machined from a nitrogen-hardened nickel-chrome molybdenum steel forging.