Used extensively as a desiccant due to its strong affinity for water, effectively drying gases and liquids in industrial processes. It plays a crucial role in the synthesis of phosphoric acid and various phosphate esters, which are essential in fertilizers, detergents, and flame retardants. In organic chemistry, it facilitates dehydration reactions, converting amides to nitriles and acids to anhydrides. Additionally, it is employed in the production of optical glasses and pharmaceuticals, where precise moisture control is critical. Its ability to remove water makes it valuable in laboratories for maintaining anhydrous conditions.