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Potassium salt is often used as a substitute for regular sodium chloride salt (the salt you find on your kitchen table), and for good reason. Most people in the United States take in too much salt on a daily basis, which may put them at risk for hypertension, heart attacks and strokes.
Along with sodium chloride and lithium chloride, potassium chloride is used as a flux for the gas welding of aluminium. Potassium chloride is also an optical crystal with a wide transmission range from 210 nm to 20 Âµm.he solid dissolves readily in water and its solutions have a salt-like taste. KCl is used in medicine, scientific applications, food processing, and used to cause cardiac arrest as the third drug in the three drug cocktail for executions by lethal injection.