Used as a strong alkaline cleaning agent in industrial and commercial settings, especially in drain cleaners and degreasers due to its ability to dissolve fats and oils. Commonly applied in the production of soaps and detergents through saponification of fats. Employed in food processing, such as washing or peeling fruits and vegetables, and in the preparation of certain foods like cocoa and chocolate. Utilized in water treatment to adjust pH levels and neutralize acidic components. Plays a key role in the manufacturing of various chemicals, including potassium carbonate and phosphates. Also used in batteries, particularly alkaline and nickel-cadmium types, as an electrolyte.