Potassium hydroxide solution is widely used in various industrial and laboratory applications. It serves as a strong base in chemical synthesis, particularly in the production of soaps and detergents, where it saponifies fats and oils. In the food industry, it is employed as a pH regulator and for cleaning and peeling fruits and vegetables. It is also utilized in the manufacture of biodiesel, where it acts as a catalyst in the transesterification process. Additionally, potassium hydroxide solution is essential in the production of potassium salts, fertilizers, and alkaline batteries. In laboratories, it is commonly used for titrations and as a reagent in various chemical reactions. Its ability to absorb carbon dioxide makes it useful in gas purification processes.