EDTA disodium salt solution is widely used in various industries due to its chelating properties. In the medical field, it is employed as an anticoagulant in blood collection tubes, preventing blood clotting by binding calcium ions. It is also used in chelation therapy to treat heavy metal poisoning, as it effectively binds and removes toxic metals like lead and mercury from the body.

In the food industry, it acts as a preservative by sequestering metal ions that can catalyze oxidation, thereby extending the shelf life of products such as canned foods, dressings, and beverages. In cosmetics, it stabilizes formulations by preventing metal-induced degradation of ingredients, ensuring product consistency and longevity.

In water treatment, EDTA disodium salt solution is used to control water hardness by binding calcium and magnesium ions, preventing scale formation in pipes and boilers. Additionally, it is utilized in laboratory settings as a reagent for complexometric titrations to determine metal ion concentrations in samples. Its versatility makes it a valuable compound across multiple applications.