| Section2 = | Section7 = | SPhrases = }} }} EDTA is a widely-used abbreviation for the chemical compound ethylene diamine tetraacetic acid (and many other names, see table). EDTA refers to the chelating agent with the formula (HO2CCH2)2NCH2CH2N(CH2CO2H)2. This amino acid is widely used to sequester di- and trivalent metal ions. EDTA binds to metals via four carboxylate and two amine groups. EDTA forms especially strong complexes with Mn(II), Cu(II), Fe(III), and Co(III). Synthesis EDTA is most… (More on Edta)