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Potassium nitrate

From London's Ghost Acres


Major uses of potassium nitrate are in fertilizers, tree stump removal, rocket propellants and fireworks. It is one of the major constituents of gunpowder (blackpowder) and has been used since the Middle Ages as a food preservative. Recorded as "Saltpetre" in the database.

https://en.wikipedia.org/wiki/Potassium_nitrate


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Used to Make