Chemical Forums
Specialty Chemistry Forums => Citizen Chemist => Topic started by: Laurocapram on August 05, 2013, 04:16:53 AM
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I know one of the way to make up molybdenum is to use molybdenum dioxide, but how to do in detail? Will it produce poison?
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Nothing for at home
http://en.wikipedia.org/wiki/Molybdenum
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WIKI says
Melting point 2896 K, 2623 °C, 4753 °F
Oh My Goodness
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Few companies offer molybdenum for mechanical engineering; Plansee produces the metal through hydrogen reduction of a powder of mixed ammonium molybdate and molybdenum trioxide. The metal powder is then sintered (1800-2200°C under hydrogen), and finally hot (1200-1500°C) laminated, forged, extruded...
www.plansee.com/pdfs/Molybdenum.pdf
not really simple for home process, is it? Though for chemical uses, you don't need to sinter ;D
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How much work do you want to put into doing this at home? Doable, but rather a bit of work.
First you need to build or buy a tube furnace
http://www.versuchschemie.de/ptopic,168531.html#168531
here too http://www.sciencemadness.org/talk/viewthread.php?tid=9705
Then place the MoO2 inside, heat the thing up, and pass hydrogen through it. Of course ensuring no H2 leaks and contacts the heating elements in the presence of oxygen.
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MoO2 + 2 H2 -----1223~1373K-----> Mo + 2 H2O
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I have heard that halogen lights contain molybdenum sheets. They are located at the 2 extremities. They melt the glass and cover the molybdenum and it makes contact with the steel wire and tungsten filament. The suspension coils for the tungsten might also be molybdenum.