Is there a way one could turn potassium cyanide into potassium nitrate (actually oxidize the cyanide anion)? It's fairly easy to convert it to ammonia by hydrolysis, but the conversion of ammonia to nitrate is difficult (bionitrification is out of question). Would peroxide be able to attack it?

  • $\begingroup$ You could try adding copper nitrate solution, the copper will precipitate out as cyanide leaving you with a potassium nitrate solution. Pour the solution in a dish and let the water evaporate and you will get potassium nitrate salt. $\endgroup$ Apr 24 at 3:12
  • $\begingroup$ What is the background of this question ? Why do you want to do so ? $\endgroup$
    – Poutnik
    Apr 24 at 6:28
  • $\begingroup$ it's more of a thought experiment. I saw someone make cyanide from charcoal and pot ash in a furnace. I was wondering if it was possible to obtain gunpowder from it with equally primitive means. $\endgroup$
    – Francis L.
    Apr 24 at 7:17

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