Used in fertilizers to provide potassium, an essential nutrient for plant growth, improving crop yield and resistance to disease. Commonly used in medicine to treat or prevent low blood potassium (hypokalemia), often caused by diuretic therapy or certain illnesses. Serves as a salt substitute in food for people on low-sodium diets, helping reduce sodium intake without sacrificing taste. Employed in laboratory settings as a buffer component or electrolyte in chemical and biological experiments. Utilized in the production of potassium hydroxide and other potassium-based chemicals through electrolysis. Found in some de-icing products as a less corrosive alternative to sodium chloride, though less effective at very low temperatures.