Used in fertilizers to provide potassium, an essential nutrient for plant growth, especially in crops like potatoes, tomatoes, and corn. Commonly used in medicine to treat or prevent low potassium levels in the blood (hypokalemia). Serves as a salt substitute in food for people on low-sodium diets, helping reduce sodium intake without sacrificing taste. Employed in the production of potassium hydroxide and other potassium-based chemicals through electrolysis. Used in some de-icing products as it is less harmful to vegetation than calcium chloride, though less effective at very low temperatures. Acts as an electrolyte in industrial processes and in laboratory settings for buffer solutions and conductivity standards. Utilized in lethal injection protocols in some regions, where it stops the heart after sedation and paralysis.