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 food processing, such as peeling fruits and vegetables or processing cocoa and chocolate. Utilized in water treatment for pH adjustment and neutralization of acidic waste streams. Plays a role in the manufacturing of batteries, particularly alkaline batteries, by serving as an electrolyte. Also used in chemical synthesis and laboratory applications for titrations and other analytical procedures requiring a strong base.