Potassium nitrate is an inorganic salt with a chemical formula of KNO3. It is a natural source of nitrate and has been used as a constituent for several different purposes, including food preservatives, fertilizers, tree stump removal, rocket propellants, and fireworks.
white solid soluble in water formed by fractional crystallisation of sodium nitrate and potassium chloride solutions. It occurs naturally as nitre in rocks in India, South Africa and Brazil.
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Asia, Australia, Central America, North America, South America, Eastern Europe, Western Europe, Middle East, Africa