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| molybdenum crucible |
Silver-white metal , hard and tough . Density 10.2 g / cm 3. Melting point 2610 ℃. Boiling point 5560 ℃. Valence of +2, +4 and +6 +6 stable price . Molybdenum is a transition element , easily changes its oxidation state .
Redox reactions in the body plays a role in electron transfer . The oxidized form, the molybdenum is likely to be in the +6 state. Although the electron transfer during which it is also likely to be restored first +5 valence state, but after the restoration of the enzyme has been found in other molybdenum oxidation state . Molybdenum is a xanthine oxidase / dehydrogenase, aldehyde oxidase and sulfite oxidase components , thereby acknowledge their animals for the human body and essential trace elements . Various human tissues are molybdenum , adult body total 9mg, liver and kidney of the highest concentrations .
Pure molybdenum wire for high temperature furnace and wire cutting EDM there ; molybdenum sheet used to manufacture radio equipment and X-ray equipment ; adding molybdenum alloy steel can improve the elastic limit , corrosion resistance and to maintain permanent magnetism . Molybdenum is required for plant growth and development in the seven kinds of micro-nutrients in one, without it, the plants can not survive. Animals and fish, and plants that also need to molybdenum .
Because molybdenum high temperature , heat and other characteristics, such as in the emerging Sapphire Dan Changjing processing industry has been widely used .
In addition , the combination of molybdenum and silicon , is a good heating element.
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