The Naked Scientists

The Naked Scientists Forum

Author Topic: How to turn Aluminum Oxide powder into a solid form  (Read 1817 times)

Offline eric2011

  • Jr. Member
  • **
  • Posts: 15
    • View Profile
Hello

I would like to know How to turn Aluminum Oxide powder into a solid form so that it will be easier for me to melt it with a acetylene oxygen torch. When I blow it when it is in powdered form, it spatter all over the place thats why I want it to be in a solod form.

BR


 

Offline chiralSPO

  • Global Moderator
  • Neilep Level Member
  • *****
  • Posts: 1879
  • Thanked: 145 times
    • View Profile
Re: How to turn Aluminum Oxide powder into a solid form
« Reply #1 on: 26/08/2015 16:04:29 »
You might try wrapping it tightly in aluminum foil. The foil will oxidize of course, but will not contaminate your sample. If the jet from your torch is not too powerful, it should stay together as it heats up and begins to melt.
 

Offline Bored chemist

  • Neilep Level Member
  • ******
  • Posts: 8670
  • Thanked: 42 times
    • View Profile
Re: How to turn Aluminum Oxide powder into a solid form
« Reply #2 on: 26/08/2015 19:30:59 »
This is the "traditional" way to do it.
https://en.wikipedia.org/wiki/Verneuil_process
but I don't think it will help you much.
 

Offline eric2011

  • Jr. Member
  • **
  • Posts: 15
    • View Profile
Re: How to turn Aluminum Oxide powder into a solid form
« Reply #3 on: 27/08/2015 17:46:09 »
Thanks. If I want to reduce the melting point in this verneuil proces,  what are some fluxes can I use?
 

Offline chiralSPO

  • Global Moderator
  • Neilep Level Member
  • *****
  • Posts: 1879
  • Thanked: 145 times
    • View Profile
Re: How to turn Aluminum Oxide powder into a solid form
« Reply #4 on: 04/09/2015 16:18:03 »
Molten cryolite is used to dissolve aluminum oxide for electrolysis to produce aluminum metal. Perhaps this could work for you too? https://en.wikipedia.org/wiki/Cryolite
https://en.wikipedia.org/wiki/Hall%E2%80%93H%C3%A9roult_process
 

The Naked Scientists Forum

Re: How to turn Aluminum Oxide powder into a solid form
« Reply #4 on: 04/09/2015 16:18:03 »

 

SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums