Product Description
Tetrasodium ethylenediaminetetraacetate (EDTA-4Na) is a commonly employed metal-sequestering agent with the molecular formula C₁₀H₁₉N₂NaO₉. It generally occurs as a white, crystalline solid and exhibits high solubility in aqueous solutions.
Owing to its strong metal-binding capacity, EDTA-4Na can capture various metal ions and convert them into stable, water-soluble complexes. This property makes it valuable in numerous industrial processes, where it helps minimize metal-induced reactions, prevent unwanted deposits, and maintain product quality. It is extensively utilized in water purification, detergent formulations, textile treatment, personal care products, and other chemical processing industries.
Chemical Properties
| Melting point | >300° C |
| storage temp. | Store at room temperature |
| solubility | Soluble in water. |
| form | powder |
| color | White |
| PH | 10.0 to 12.0(5 g/L, 25 deg-C) |
| CAS DataBase Reference | 67401-50-7(CAS DataBase Reference) |
| EPA Substance Registry System | Tetrasodium ethylenediaminetetraacetate trihydrate (67401-50-7) |
Product Application
EDTA-4Na has a wide range of industrial applications because of its strong ability to bind metal ions. Its major uses include:
Water Treatment: Used to remove or control metal ions, helping to prevent mineral deposits and improve water quality.
Textile and Dyeing Industry: Helps eliminate metal ion interference during dyeing, resulting in more uniform coloration and improved fabric quality.
Rubber Manufacturing: Acts as an activating agent in the production of styrene-butadiene rubber (SBR).
Chemical Analysis: Applied in complexometric titration and other analytical methods to determine the concentration of metal ions.
Pharmaceuticals and Cosmetics: Used as a chelating stabilizer to reduce metal-induced degradation and maintain product quality during storage.
