Used in fertilizers to provide potassium, an essential nutrient for plant growth, especially in crops like potatoes, tomatoes, and fruits. Commonly used in medicine to treat or prevent low potassium levels in the blood (hypokalemia). Serves as a salt substitute in food for people reducing sodium intake. Employed in the production of potassium hydroxide and other potassium-based chemicals. Used in some de-icing products as it is less harmful to vegetation than sodium chloride. Also utilized in laboratory settings as a buffering agent and in electrode solutions for pH measurements.