Ethylenediaminetetraacetic acid(EDTA)
author:admin source:admin published:2013-11-29 14:44:31
Product name:Ethylenediaminetetraacetic
acid(EDTA)
CAS: 60-00-4
Molecular formula:C10H16N2O8
Molecular weight:292.24
Description: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. Its usefulness arises because of its role as a hexadentate
("six-toothed") ligand and chelating agent, i.e. its ability to
"sequester" metal ions such as Ca2+ and Fe3+. After being bound by
EDTA, metal ions remain in solution but exhibit diminished reactivity. EDTA is
produced as several salts, notably disodium EDTA and calcium disodium EDTA.