Used in medical settings as an electrolyte replenisher to treat or prevent low levels of potassium in the blood, a condition known as hypokalemia. It is administered intravenously under medical supervision. In agriculture, it serves as a fertilizer to supply potassium, an essential nutrient for plant growth, improving crop yield and quality. Industrially, it is utilized in water softening systems to regenerate ion exchange resins, helping to remove calcium and magnesium ions from hard water. It is also employed in scientific laboratories as a standard reference solution for calibrating equipment and conducting experiments. In food processing, it acts as a salt substitute, reducing sodium content in products while maintaining flavor. Additionally, it is used in certain fire extinguishers as a flame suppressant and in oil and gas drilling fluids to stabilize boreholes.