Used as a strong alkaline cleaning agent in industrial and commercial settings, particularly in drain and oven cleaners due to its ability to dissolve grease and protein-based deposits. Commonly employed in the production of soaps and detergents through saponification of fats and oils. Utilized in pH control for water treatment and various chemical manufacturing processes. Plays a key role in the synthesis of potassium salts and in the regeneration of ion exchange resins. Also used in food processing, such as in washing or peeling fruits and vegetables, and in the preparation of certain food additives. Found in some battery electrolytes, especially in alkaline batteries, due to its high ionic conductivity.