Potassium hydroxide solution is widely used in various industrial and laboratory applications. It serves as a strong alkaline agent in the production of soaps and detergents, where it saponifies fats and oils to create cleaning products. In the food industry, it is employed as a pH regulator and for peeling fruits and vegetables. Additionally, it plays a crucial role in the manufacture of biodiesel, where it acts as a catalyst in the transesterification process. In laboratories, it is utilized for chemical synthesis, titration, and as a cleaning agent for glassware due to its ability to dissolve organic residues. It is also used in the petroleum industry to remove acidic impurities from hydrocarbons.