Caustic Soda Lye is an inorganic class liquid compound with strong alkalinity that can be used in various applications such as detergent making, fiber processing, alumina refineries, and many more. The IUPAC name of this chemical is sodium hydroxide and having a molecular formula of NaOH with an average molar mass of 39.99 grams per mol. Caustic Soda Lye has a specific gravity of between 1.51 to 1.54 and has a high boiling point of 145 0C