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en:chelating_agents [2013/01/31 14:38] (current)
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 +======Chelating Agents======
 +Chelating Agents ​ - Organic chemicals that form two or more coordination bonds with a central metal ion. Heterocyclic rings are formed with the central metal atom as part of the ring. Some biological systems form metal chelates, e.g., the iron-binding porphyrin group of hemoglobin and the magnesium-binding chlorophyll of plants. (From Hawley'​s Condensed Chemical Dictionary, 12th ed) They are used chemically to remove ions from solutions, medicinally against microorganisms,​ to treat metal poisoning, and in chemotherapy protocols. ​