Used as a strong alkaline cleaning agent in industrial and commercial settings, especially for removing fats, oils, and proteins from surfaces. Commonly applied in the production of soaps and detergents through saponification of fats. Employed in pH control for water treatment and chemical manufacturing processes. Utilized in the food industry for washing or chemical peeling of fruits and vegetables. Also used in electroplating, petroleum refining, and as an electrolyte in alkaline batteries. Plays a role in the synthesis of various potassium salts and organic compounds.