I have a compound potassium oxide($\ce{K2O}$) and I am trying to convert it into potassium nitride ($\ce{K3N}$). Here are a few possible reaction methods :

  • Split potassium oxide into the constituent elements potassium and oxygen (Not very good as a lot of energy is required)
  • $\ce{K2O + N2 -> K3N + O2}$ (however this won't happen(?) because nitrogen has a lower electronegativity value than oxygen does)

and so on.

Does anyone know how can I convert the oxide to the nitride, releasing oxygen in the process, by not having to use a lot of energy-requiring processes?

  • 2
    $\begingroup$ The second reaction can happen- Thermodynamics are altered by concentration differential. Lots of Nitrogen and little K2O. It will need catalysing to break the nitrogen to atoms which is a kinetics problem. Potassium Nitride is not all that stable. Just look at Sodium Nitride in wikipedia. $\endgroup$ – user2617804 Nov 10 '13 at 10:12
  • $\begingroup$ @user2617804 How would I be best to begin on doing more research for the process that you mentioned above? $\endgroup$ – user2117 Nov 10 '13 at 10:15
  • 2
    $\begingroup$ @user2617804 - Potassium nitride $\ce{K3N} \ne$ potassium azide $\ce{KN3}$ $\endgroup$ – Ben Norris Nov 10 '13 at 20:03

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