EthyleneDiamineTetraAcetic acid (EDTA) is an aminopolycarboxylic acid with the formula [CH2N(CH2CO2H)2]2. This white, water-soluble solid is widely used to bind to iron and calcium ions. It binds these ions as a hexadentate ("six-toothed") chelating agent. EDTA is produced as several salts, notably disodium EDTA, sodium calcium edetate, and tetrasodium EDTA. EDTA is a chelating agent used in various industries including water treatment, food, cleaning and other industrial applications.


Molar Weight292.244 g/mol
Melting Point240.0°C
Density0.860 g/cc
FormsPowder, White, Crystalline

Uses and Applications

Key applications

  • Hair care
  • Wastewater treatment
  • Water treatment
  • Cleaning products
  • Detergent
  • Household industrial
  • Personal care
  • Cosmetic products


  • Cosmetics
  • Water Treatment
  • Chemical Processing
  • Rubber

Synonyms: Diaminoethane-tetraacetic acid, EDTA Acid, Ethylenediaminetetraacetic Acid, H4EDTA

Chemical Formula: C10H16N2O8

CAS Number: 60-00-4