Would you guys make a list of all possible ways to make KNO3?
Someone told me it could be extracted from birdshit.
You can also buy in fertilizer. How do you extract clean KNO3 out of the fertilizer?
I know it could simply be bought... But what if you are lost in the wild? It would be god to know how to make powder. Or even to know how to use KNO3 to keep food "fresh".
In some countries clean KNO3 isn't really very cheap. For that reason it would be good to know how to extract it from fertilizer.
Disclaimer: Whatever I say, I may be bullshiting. I often assume too much.