Primarily used as a chelating agent in various industrial and household applications. It effectively binds to metal ions, preventing them from interfering with chemical processes. Commonly found in detergents and cleaning products, where it enhances the efficiency of surfactants by softening water and removing metal ions that can cause staining or reduce cleaning effectiveness.

In the textile industry, it is utilized to improve the quality of dyeing processes by stabilizing metal ions that could otherwise affect color consistency. It also plays a role in water treatment systems, where it helps control scale formation and corrosion by sequestering metal ions in boiler water and cooling systems.

Additionally, it is employed in the paper and pulp industry to improve the brightness and strength of paper by removing metal ions that can catalyze unwanted reactions. Its chelating properties make it a valuable component in various industrial applications where metal ion control is critical.