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 various chemical manufacturing processes. Utilized in the food industry for washing or peeling fruits and vegetables, and as a processing aid in certain food products. Also used in electroplating, metal cleaning, and as an electrolyte in batteries and fuel cells. Plays a role in the synthesis of various potassium-based chemicals and in laboratory settings for titrations and chemical analysis.