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Potassium Nitrate
Potassium nitrate (KNO3) is a naturally occurring mineral that contains three basic chemical elements. It contains potassium that is a soft, light, silver metal, nitrogen a colorless odorless gas and oxygen, the most essential element for life. Use of potassium nitrate as food preservatives was commonly seen during the Middle Ages. Today, it is used in many processes like curing meat, production of brine and making corned beef.
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