Phytic acid hexabarium salt is primarily used in the field of materials science, particularly in the development of flame retardants. Its ability to form a protective char layer makes it effective in enhancing the fire resistance of various polymers and textiles. Additionally, it finds application in the production of specialty ceramics, where it acts as a binding agent to improve the structural integrity of the final product. In the agricultural sector, it is utilized as a slow-release fertilizer, providing essential nutrients to plants over an extended period. Its unique properties also make it suitable for use in corrosion inhibitors, protecting metal surfaces from degradation in harsh environments, including in the paint and metal coating industries to enhance surface durability.