Used in the food industry as a sequestrant and acidity regulator, enhancing the stability, texture, and shelf life of various products by binding metal ions and preventing oxidation. It plays a role in water treatment processes to control scale formation, corrosion, and pH balance. In laboratories, it serves as a reagent for analytical chemistry (e.g., silica determination) and biochemical research (e.g., protein precipitation). Additionally, it is utilized in dental care products for its enamel-protecting and mild etching properties. Its application extends to the pharmaceutical industry, where it aids in the formulation of certain medications, including as a phosphate source for bone and dental health support. Furthermore, it is employed in the production of phosphate fertilizers to enhance plant nutrient absorption.