Saltpeter ( Potassium nitrate ) is used for breaking jinxes, cleansing, and turning luck around.
Saltpeter is used to break up crossed conditions and protect against negativity.
Suggested magical uses:
Sprinkle around a room or property.
Add to a bath for spiritual cleansing.
Carry in a mojo bag along with other herbs and talismans.
Sprinkle around a spell candle.
Add to a spiritual oil.
For in-depth information on how to use this and other herbs and roots magically, I recommend Hoodoo Herb and Root Magic and Cunningham's Encyclopedia of Magical Herbs, both of which can be found in our Books section.