what is edta in chemistry
Ethylenediaminetetraacetic acid, widely abbreviated as EDTA (for other names, see Table), is an aminopolycarboxylic acid and a colourless, water-soluble solid.Its conjugate base is named ethylenediaminetetraacetate. It is widely used to dissolve limescale.s a structural isomer of EDTA, ethylenediamine-N,Nâ-disuccinic acid can exist three isomers : (S,S), (R,S)/(S,R) and (R,R), but only the S,S-isomer is readily biodegradable. EDDS exhibits a surprisingly high rate biodegradation at 83% in 20 days.