Saltpeter (disambiguation)

Saltpeter (or saltpetre) is the mineral form of potassium nitrate (KNO3), a compound

It may also sometimes refer to:


 * Sodium nitrate (NaNO3), a compound
 * Chile saltpeter or nitratine, the mineral form
 * Norwegian saltpeter or calcium nitrate (Ca(NO3)2)
 * Magnesium nitrate (Mg(NO3)2)