Origin: Occurs in nature as a mineral called niter.
Overview: Potassium nitrate is one of several nitrogen-containing compounds collectively referred to as saltpeter or saltpetre. It is generally used as a food preservative and additive, fertilizer, and oxidiser for fireworks. It is also used to treat asthma and as a topical treatment for sensitive teeth.
- Preservative and curing agent
- Prevention of botulism
- Treating asthma
- Treating sensitive teeth