Definitions for edetic acid

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  1. Edetic Acid

    Ethylenediaminetetraacetic acid, widely abbreviated as EDTA, is a polyamino carboxylic 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 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.

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  1. Edetic Acid

    A chelating agent (CHELATING AGENTS) that sequesters a variety of polyvalent cations. It is used in pharmaceutical manufacturing and as a food additive.

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