Sodium hydroxide ( NaOH ) is a white, odorless, nonvolatile alkaline material used in various industries and household products. Learn about its chemical structure, physical and chemical properties, hazards, safety, and price from ChemicalBook. Sodium Hydroxide ( NaOH ) – Definition, Structure, Preparation, Properties, Uses, Side Effects Sodium hydroxide, also known as lye or caustic soda, is a powerful base commonly used in various industries and everyday products. This white, solid compound is highly soluble in water, producing heat upon dissolution. It plays a crucial role in manufacturing paper, soap, and detergents, and is also used in water treatment processes to help neutralize acids and control water acidity. Despite its ... NaOH is available in various forms, including pellets, flakes, and aqueous solutions, each tailored to specific industrial needs. When considering the physical properties of NaOH , one common question is: What is the density of sodium hydroxide? The density of NaOH varies depending on its concentration and form. Sodium hydroxide, also known as caustic soda or lye, is a white, corrosive solid that reacts with water and acids. Learn about its structure, properties, preparation, uses and health hazards with examples and FAQs.