The Hepta Sodium Salt of Diethylene Triamine Penta (Methylene Phosphonic Acid) (DTPMP.Na₇) is a highly effective scale inhibitor and corrosion inhibitor. It is used extensively in water treatment applications, such as in cooling systems, boilers, and industrial water circuits. This compound helps prevent the deposition of minerals (scaling) and reduces corrosion in water systems. It is particularly valued for its high stability, even at low concentrations, and its ability to improve the overall efficiency of water treatment systems.