Agent Name

Diammonium EDTA

CAS Number

20824-56-0

Formula

C10-H16-N2-O8.2H3-N

Major Category

Other Uses

Synonyms

Diammonium edetate; Diammonium ethylenediaminetetraacetate; Diammonium N,N'-1,2-ethanediylbis(N-(carboxymethyl)glycine); Edetate diammonium; Glycine, N,N'-1,2-ethanediylbis(N-(carboxymethyl)-, diammonium salt; Ethylenediaminetetraacetic acid diammonium salt; Diammonium dihydrogen ethylenediaminetetraacetate; Glycine, N,N'-1,2-ethanediylbis(N-(carboxymethyl)-, ammonium salt (1:2); Acetic acid, (ethylenedinitrilo)tetra-, diammonium salt; [ChemIDplus] Diammonium dihydrogen 2,2',2'',2'''-(ethane-1,2-diyldinitrilo)tetraacetate; [ToxPlanet: ECHA REACH Registrations]

Category

Chelating Agents

Description

White powder; [Acros Organics MSDS]

Sources/Uses

Permitted for use as an inert ingredient in non-food pesticide products; [EPA] Used to manufacture numerous products; [ExPub: ECHA REACH Registrations] "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." [Wikipedia]

Comments

May cause irritation; [Acros Organics MSDS] See "Edetic acid."

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