Wait...how are people using gunpowder without saltpeter? iirc gunpowder requires 75%saltpeter (potassium nitrate), 10% charcoal and 15% sulphur?
The saltpeter was mainly there to provide oxygen for the other ingredients when its lit. No good reason not to use it as a meat preservative as all three ingredients are totally harmless independantly..its when they are mixed that they become explosive. (I believe it is the reaction between the charcoal and the sulphur that causes the main reactive force.) Also its salty...hence saltpeter.
It's the nitrate part of it that makes it good as a fertiliser btw.
The saltpeter was mainly there to provide oxygen for the other ingredients when its lit. No good reason not to use it as a meat preservative as all three ingredients are totally harmless independantly..its when they are mixed that they become explosive. (I believe it is the reaction between the charcoal and the sulphur that causes the main reactive force.) Also its salty...hence saltpeter.
It's the nitrate part of it that makes it good as a fertiliser btw.