This compound is primarily used as a flame retardant in various polymer applications. It is particularly effective in enhancing the fire resistance of polyurethane foams, which are commonly used in furniture, mattresses, and insulation materials. The chemical works by releasing phosphoric acid when exposed to heat, which then promotes the formation of a char layer. This char layer acts as a barrier, preventing the spread of flames and reducing the release of flammable gases. Additionally, it is valued for its ability to maintain the physical properties of the polymer, such as flexibility and durability, while providing significant fire safety benefits. Its application is crucial in industries where fire safety standards are stringent, ensuring compliance with regulations and improving overall safety.