White caustic soda, also known as sodium hydroxide (NaOH), is a strong alkaline compound that appears as a white, odorless solid. It is highly soluble in water and forms a caustic solution, capable of corroding organic tissues upon contact. White caustic soda is widely used in various industries, including chemical manufacturing, pulp and paper production, textiles, and water treatment. In chemical processes, it serves as a versatile base and pH regulator. In the manufacture of pulp and paper, it is employed in bleaching and deinking processes. In textiles, it aids in the processing of fibers and fabrics. Additionally, it plays a crucial role in wastewater treatment to adjust pH levels and neutralize acidic effluents. Despite its usefulness, sodium hydroxide requires careful handling due to its corrosive nature and potential health hazards.