
Caustic soda, also known as sodium hydroxide or lye, is a non-flammable, odorless white solid. It is highly corrosive and is available in different forms like granules, pellets, and flakes. The process which is used to form chlorine, caustic soda, and soda ash is known as chlor-alkali. Caustic soda being a co-product of chlorine, the supply of caustic soda in the market depends significantly on the production of chlorine. Caustic soda has numerous applications, foremost of which is as a chemical base, where it acts as the vital raw material in the production of many organic chemicals.