Our Caustic Soda also known as sodium hydroxide is a corrosive white crystalline solid that contains sodium and hydroxide. It mainly helps in readily absorbing moisture until it dissolves. This chemical is mainly used as a cleansing agent and also in the manufacturing of washing soda. Sometimes, it is also used as a reagent in laboratories. To make soda-lime this chemical is also utilized. Caustic Soda is an effective chemical for the extraction of aluminum by purifying bauxite.