[Common name] : Potassium nitrate (NOP)
[Chemical name] : Potassium nitrate
[CAS NO.] : 7757-79-1 
[Use] : Potassium nitrate, commonly known as saltpeter, is a versatile chemical primarily used as a high-value fertilizer, a key ingredient in fireworks and gunpowder, and a preservative in cured meats.