Sodium hydroxide is widely used in the manufacturing of paper and pulp, where it helps break down wood fibers to produce paper products. In the chemical industry, it serves as a key ingredient in the production of soaps, detergents, and various cleaning agents due to its ability to react with fats and oils. It is also employed in water treatment processes to neutralize acidic water and remove heavy metals. In the food industry, it is used for cleaning and peeling fruits and vegetables, as well as in the production of food additives. Additionally, sodium hydroxide plays a critical role in the petroleum industry for refining crude oil and removing impurities. Its strong alkaline nature makes it essential in numerous industrial and laboratory applications.