Etidronic acid (HEDP) solution is widely used as a scale and corrosion inhibitor in water treatment processes, particularly in cooling systems, boilers, and desalination plants. It effectively prevents the formation of calcium carbonate, calcium sulfate, and other mineral scales, ensuring efficient heat transfer and prolonging equipment lifespan. In the oil and gas industry, it is employed to control scale formation in pipelines and wells, enhancing operational efficiency. Additionally, it is utilized in the textile and detergent industries as a chelating agent to stabilize metal ions and improve the performance of cleaning products. Its ability to inhibit oxidation and stabilize peroxides also makes it valuable in personal care products, such as toothpaste and cosmetics, to maintain product integrity and safety.