Removal of oxygen on Boron powders

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SUMMARY

The discussion centers on the reaction of methanol with B2O3 to produce Boron esters, which volatilize during evaporation. This process is linked to enolate formation and breakdown, as referenced in organic chemistry texts discussing the aldol reaction. For those involved in pressing and sintering Boron powders, it is crucial to source materials from a reliable supplier and maintain an argon atmosphere to prevent oxidation. Alternative methods, such as using a hot hydrogen stream, are discouraged due to potential complications with hydrogen solubility in Boron.

PREREQUISITES
  • Understanding of B2O3 chemistry
  • Familiarity with organic chemistry concepts, specifically the aldol reaction
  • Knowledge of sintering processes for powder metallurgy
  • Experience with inert gas handling, particularly argon
NEXT STEPS
  • Research the properties and reactions of Boron esters
  • Study the aldol reaction in organic chemistry
  • Explore best practices for sintering Boron powders under inert atmospheres
  • Investigate the effects of hydrogen on Boron solubility and reactivity
USEFUL FOR

Chemists, materials scientists, and engineers involved in the production and processing of Boron powders, particularly those focused on preventing oxidation and optimizing sintering conditions.

woodyanderson
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Have read that methanol reacts with B2O3 to produce Boron esters which volatilize during evaporation. Does this work? If so how?:!)
 
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Looks like enolate formation and breakdown. You should find something about it in an organic chemistry text, under the aldol reaction. Can't say I know very much about it, but there may be some organic chemists here that can do better.
 
Last edited:
If you're pressing and sintering powders, find another supplier and keep the stuff under argon. If you're messsing around with other uses, you can try a hot hydrogen stream --- you'll probably get enough H dissolved in the B to screw you up, though. Wet methods? Forget it.
 

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