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chelate

螯合; 螯合物; 螯形的

WordNet (r) 3.0 (2006) (WordNet)

chelate
adj 1: relating to or characterized by chelation [synonym:
{chelate}, {chelated}]
2: having or resembling chelae or claws
n 1: a heterocyclic compound having a metal ion attached by
coordinate bonds to at least two nonmetal ions [synonym:
{chelate}, {chelate compound}]
v 1: form a chelate, in chemistry

The Collaborative International Dictionary of English v.0.48 (gcide)

Chelate \Che"late\, a. (Zool.)
Same as {Cheliferous}.
[1913 Webster]

chelate \che"late\, n. (Chem.)
a compound formed by combination of a metal ion in solution
with a compound containing heteroatoms (such as oxygen or
nitrogen), in which at least two heteroatoms are bound to the
metal. The bonds may be covalent or non-covalent. Chelates in
some cases have very low dissociation constants, and organic
compounds ({chelating agents}) which form such chelates are
therefore used to reduce the concentration of free metal ions
in solution.
[PJC]

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英文字典中文字典相关资料:

Chelation - Wikipedia
Metal chelate compounds are common components of fertilizers to provide micronutrients These micronutrients (manganese, iron, zinc, copper) are required for the health of the plants
What Does Chelated Mean for Minerals and Supplements?
The term “chelated” on a mineral supplement label refers to a specific chemical process that binds the mineral atom to another molecule Chelation involves an organic compound, often an amino acid, forming a protective structure around the charged mineral ion
CHELATE Definition Meaning - Merriam-Webster
The meaning of CHELATE is resembling or having chelae
What Is a Chelating Agent and What Are Its Uses?
In health and medicine, chelating agents are primarily used in chelation therapy, a medical procedure designed to remove toxic heavy metals from the body This therapy is the preferred method for addressing poisoning from substances like lead, mercury, and arsenic
Chelate | Chelating Agents, Complexes Compounds | Britannica
Chelate, any of a class of coordination or complex compounds consisting of a central metal atom attached to a large molecule, called a ligand, in a cyclic or ring structure
CHELATES CHELATING AGENTS
nt chelate is vitamin B-12 It is the only vitamin that contains a metal, a cobalt(II) ion bonded to a por hyrin-like chelating agent As far as is known, it is required in the diet of all higher animals It is not synthesized by either higher plants or animals, but only by certain bacteria and molds These are the sources of the B-
What is chelation chemistry? - California Learning Resource Network
The chelate effect refers to the increased stability of chelate complexes compared to analogous complexes with monodentate ligands This increased stability is primarily attributed to the increase in entropy associated with the displacement of solvent molecules during chelation
Chelation - Chemistry LibreTexts
The chelate effect can be seen by comparing the reaction of a chelating ligand and a metal ion with the corresponding reaction involving comparable monodentate ligands

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