# Most economical method to convert potassium oxide to potassium nitride.

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?

• 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. – user2617804 Nov 10 '13 at 10:12
• @user2617804 How would I be best to begin on doing more research for the process that you mentioned above? – user2117 Nov 10 '13 at 10:15
• @user2617804 - Potassium nitride $\ce{K3N} \ne$ potassium azide $\ce{KN3}$ – Ben Norris Nov 10 '13 at 20:03