General Properties and Industrial Significance:
Potassium nitrate (KNO₃) is a potassium salt of nitric acid, occurring naturally as the mineral niter. It consists of potassium cations (K⁺) and nitrate anions (NO₃⁻) and is a key source of nitrogen.
Applications:
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Fertilizers:
Used as a source of nitrate and potassium, free of chloride. Available in water-soluble, crystalline form for hydroponics and prilled form for soil application.
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Tree Stump Removal:
Facilitates the rotting of tree stumps.
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Gunpowder and Explosives:
Potassium nitrate is commonly used as a strong oxidizer in gunpowder and explosives.
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Fireworks:
Potassium nitrate is combined with other chemicals to produce vibrant colors and effects.
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Ceramics
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Thermal and Spa Salts
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Food Preservation:
Used as a preservative in processed meats and cheeses to protect against microbial agents.
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Toothpaste:
Used to reduce tooth sensitivity.
