chelate

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Related to chelating: Chelating agent

chelate

 [ke´lāt]
1. to combine with a metal in complexes in which the metal is part of a ring.
2. by extension, a chemical compound in which a metallic ion is sequestered and firmly bound into a ring within the chelating molecule. Chelates are used in chemotherapy of metal poisoning.

che·late

(kē'lāt),
1. To effect chelation.
2. Pertaining to chelation.
3. A complex formed through chelation.

chelate

/che·late/ (ke´lāt)
1. to combine with a metal in complexes in which the metal is part of a ring.
2. by extension, a chemical compound in which a metallic ion is sequestered and firmly bound into a ring within the chelating molecules. Chelates are used in chemotherapy of metal poisoning.

chelate

(kē′lāt′)
adj. Zoology
Having chelae or resembling a chela.
n. Chemistry
A chemical compound in the form of a heterocyclic ring, containing a metal ion attached by coordinate bonds to at least two nonmetal ions.
tr.v. che·lated, che·lating, che·lates
1. Chemistry To combine (a metal ion) with a chemical compound to form a ring.
2. Medicine To remove (a heavy metal, such as lead or mercury) from the bloodstream by means of a chelate, such as EDTA.

che′lat·a·ble adj.
che·la′tion n.
che′la′tor n.

chelate

[kē′lāt]
Etymology: Gk, chele, claw
1 v, to form a bond, thus creating a ringlike complex. An example is the interaction of a metal ion and two or more polar groups of a single molecule.
2 n, (in medicine) any coordination compound composed of a central metal ion and an organic molecule with multiple bonds arranged in ring formations, used especially in chemotherapeutic treatments for metal poisoning.
3 adj, pertaining to chelation.

che·late

(kē'lāt)
1. To effect chelation.
2. Pertaining to chelation.
3. A complex formed through chelation.

chelate

  1. possessing claws or pincer-like appendages.
  2. to combine with a metal ion to form a stable compound.

Chelate

A chemical that binds to heavy metals in the blood, thereby helping the body to excrete them in urine.
Mentioned in: Nephrotoxic Injury

chelate

to combine with a metal in complexes in which the metal is part of a ring; by extension, a chemical compound in which a metallic ion is sequestered and firmly bound into a ring within the chelating molecule. Chelates are used in treatment of metal poisoning.
References in periodicals archive ?
As of 2014, BASF manufactured chelating agents at Ludwigshafen (Germany), Lima (Peru), Ohio (US), and in Guaratingueta (Brazil).
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The use of innovative chelating agents is also growing in other application areas, such as process water treatment or agricultural technology.
BASF currently manufactures its chelating agents at its Ludwigshafen site, in Lima, Ohio and in GuaratinguetEi, Brazil.
These data are in contrast with a previous rodent study of several other chelating agents, including BAL, citrate, and penicillamine, which suggested that these agents may increase the body absorption and retention of Pb from exposures suffered concurrent with treatment (11).
BASF s chelating agent TrilonA M offers a good price/performance ratio.
The food and beverage industry continues to take advantage of the many unique and important benefits of VERSENE CA in its products," explained Kevin Lewis, Americas Marketing Manager for VERSENE chelating agents, The Dow Chemical Company.
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The MDS panel strongly recommends the consideration of deferasirox as an iron chelating agent for patients who have received greater than 20-30 red blood cell transfusions.
It entails providing a pesticidal composition with one component selected from the group consisting of a phosphonic acid chelating agent, a metal complex of the phosphonic acid chelating agent, a phosphonic acid chelating agent combined with a metal salt, and mixtures thereof, and a second component that comprises a dry food source effective as a bait edible to insect pests.
Traditionally, IC manufacturers have achieved BEOL post-ash cleaning using a solvent mixture with amines, chelating agents, surfactants and other expensive components followed by an isopropyl alcohol rinse.
Trilon M is the first product to meet the DfE criteria for chelating and sequestering agents.