chelating agent

chelating agent
che·lat·ing agent 'kē-.lā-tiŋ- n chelator

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a chemical compound that forms complexes by binding metal ions. Some chelating agents, including desferrioxamine and penicillamine, are drugs used to treat metal poisoning: the metal is bound to the drug and excreted safely. Chelating agents often form the active centres of enzymes.

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1. a compound that combines with metal ions by means of two or more coordinating positions to form stable ring structures, e.g., heme. 2. a substance used to reduce the concentration of free metal ion in solution by complexing it. Called also metal complexing a. and chelator.

Medical dictionary. 2011.

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  • chelating agent — che lat*ing a gent, n. (Chem.) a compound which forms a chelate with a metal ion. Note: Commonly used chelating agents in laboratory use are {EDTA} and {sodium citrate}. Citrate is used as an additive to blood collected in blood banks, to chelate …   The Collaborative International Dictionary of English

  • chelating agent — kompleksonas statusas Aprobuotas sritis augalininkystė apibrėžtis Medžiaga, sudaranti su katijonais chelatinį kompleksą. atitikmenys: angl. chelating agent; complexone vok. Komplexon rus. комплексон pranc. agent chélatant, m šaltinis Lietuvos… …   Lithuanian dictionary (lietuvių žodynas)

  • chelating agent — chelantas statusas T sritis chemija apibrėžtis Chelatinį žiedą sudarantis ligandas. atitikmenys: angl. chelating agent rus. хелант; хелатирующий реагент; хелатообразующий лиганд; хелатообразующий реагент …   Chemijos terminų aiškinamasis žodynas

  • chelating agent — kompleksonas statusas T sritis chemija apibrėžtis Medžiaga, sudaranti su katijonais chelatinį kompleksą. atitikmenys: angl. chelating agent; complexone rus. комплексон …   Chemijos terminų aiškinamasis žodynas

  • chelating agent — a chemical compound that forms complexes by binding metal ions. Some chelating agents, including desferrioxamine and penicillamine, are drugs used to treat metal poisoning: the metal is bound to the drug and excreted safely. Chelating agents… …   The new mediacal dictionary

  • chelating agent — /kəˈleɪtɪŋ eɪdʒənt/ (say kuh layting ayjuhnt) noun Chemistry a multivalent coordinating agent or ligand which is able to form a complex with a metal ion, the coordinated metal being present in one or more rings with the ligand …  

  • chelating agent — Chem. a ligand that forms chelates. Also called chelator /kee lay teuhr/. * * * …   Universalium

  • chelating agent — noun Any compound that reacts with a metal ion to produce a chelate …   Wiktionary

  • chelating agent — Chem. a ligand that forms chelates. Also called chelator /kee lay teuhr/ …   Useful english dictionary

  • agent chélatant — kompleksonas statusas Aprobuotas sritis augalininkystė apibrėžtis Medžiaga, sudaranti su katijonais chelatinį kompleksą. atitikmenys: angl. chelating agent; complexone vok. Komplexon rus. комплексон pranc. agent chélatant, m šaltinis Lietuvos… …   Lithuanian dictionary (lietuvių žodynas)

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