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Meaning of potassium nitrate

Source language: EnglishDictionary language: English

potassium nitrate

noun

Definitions

  1. KNO3, a naturally occurring salt, is an ingredient of gunpowder, is a food preservative, and is an ingredient in toothpaste for sensitive gums. Historically saltpeter has been used in the production of nitric acid HNO3. Other methods are now used.