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METAL COMPLEXING AGENT [4 records]

Record 1 2011-08-23

English

Subject field(s)
  • Chemical Elements and Compounds
Universal entry(ies)
(CH3)2SO
formula, see observation
C2H6OS
formula, see observation
67-68-5
CAS number
DEF

A chemical product which appears under the form of a colorless, nearly odorless, hygroscopic liquid whith a slightly bitter taste, which readily penetrates skin and other tissues, is combustible, is an extremely powerful aprotic solvent, is soluble in water, alcohol, benzene, acetone and chloroform, has a low toxicity, and is used as a solvent for polymerization and cyanide reactions, as an analytical reagent, in spinning polyacrylonitrile and other synthetic fibers, in industrial cleaners, in pesticides, in paint stripping, in hydraulic fluids, for the presentation of cells at low temperatures, in medicine as an anti-inflammatory and as a metal complexing agent.

OBS

(methylsulfinyl)methane: form recommended by the IUPAC (International Union of Pure and Applied Chemistry).

OBS

dimethyl sulfoxide: part of the Ingredient Disclosure List of the Hazardous Products Act (Registration SOR/88-64, December 31, 1987).

OBS

Also known under many trade names, such as: A 10846; Deltan; Demeso; Demasorb; Demavet; Demsodrox; Dermasorb; Dimexide; Dipirartril-Tropico; DMS-70; DMS-90; Dolicur; Doligur; Domoso; Dromisol; Durasorb; Gamasol 90; Hyadur; Infiltrina; M 176; NSC-763; Rimso-50; Somipront; SQ 9453; Syntexan and Topsym.

OBS

Chemical formula: (CH3)2SO or C2H6OS

French

Domaine(s)
  • Éléments et composés chimiques
Entrée(s) universelle(s)
(CH3)2SO
formula, see observation
C2H6OS
formula, see observation
67-68-5
CAS number
OBS

(méthylsulfinyl)méthane : forme recommandée par l'UICPA (Union internationale de chimie pure et appliquée).

OBS

diméthyl sulfoxyde; diméthyl sulfinone : formes incorrectes; font partie de la Liste de divulgation des ingrédients de la Loi sur les produits dangereux (du Canada; enr. DORS s/88-64, 31 déc. 1987).

OBS

Formule chimique : (CH3)2SO ou C2H6OS

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
Entrada(s) universal(es)
(CH3)2SO
formula, see observation
C2H6OS
formula, see observation
67-68-5
CAS number
DEF

Líquido incoloro, casi inodoro, de sabor amargo, miscible con agua. Penetra completamente en la piel y otros tejidos. Combustible. Tóxico por vía oral.

Save record 1

Record 2 2007-01-19

English

Subject field(s)
  • Chemistry
  • Biotechnology
DEF

Family of molecules that can form several bonds to a metal ion, in order to deactivate them.

CONT

Chelation(from Greek, chelè, meaning claw) is the process of reversible binding(complexation) of a ligand-the chelant, chelator, chelating agent, sequestering agent, or complexing agent-to a metal ion, forming a metal complex, the chelate. The term is generally reserved for complexes in which the metal ion is bound to two or more atoms of the chelating agent, although the bonds may be any combination of coordination or ionic bonds.

CONT

Further experiments showed that by adding a demineralising agent (EDTA) to the soil, plants could accumulate a larger quantity of metals. Testing also demonstrated that the demineralising agent facilitated the migration of metals towards the top of the plant (stems and leaves).

French

Domaine(s)
  • Chimie
  • Biotechnologie
DEF

Se dit d'un corps qui a la propriété de se lier fortement et de manière plus ou moins spécifique à un ion positif bivalent et trivalent (notamment métallique) avec lequel il forme un composé (ou chélate n. m.) dans lequel l'atome central est lié aux atomes voisins par au moins deux liaisons en formant une structure annulaire.

CONT

D'autres expériences ont démontré que l'ajout d'un agent déminéralisant (EDTA) dans les sols permettait aux plantes d'accumuler une quantité supérieure de métaux. Elles ont aussi prouvé que l'agent déminéralisant facilitait la progression des métaux vers les parties aériennes de la plantes (tiges et feuilles).

CONT

La chélation (prononcer kélassion, du grec khêlê : « pince ») est un processus physico-chimique au cours duquel est formé un complexe, le chélate, entre un complexant, dit chélateur (ou chélatant), et un métal, alors complexé, dit chélaté.

Spanish

Save record 2

Record 3 1998-01-28

English

Subject field(s)
  • Chemistry
DEF

An indicator which is itself a complexing agent and which exhibits a colour change when it reacts with metal ions or has them removed from its complex with them at or near the equivalence-point of a complexometric or precipitation titration.

French

Domaine(s)
  • Chimie
DEF

[...] indicateur qui est lui-même un agent de complexation et qui présente un changement de couleur quand il réagit avec un ion métallique ou quand il le déplace de son complexe au voisinage du point d'équivalence lors d'un titrage complexométrique ou d'un titrage par précipitation.

Spanish

Save record 3

Record 4 1998-01-28

English

Subject field(s)
  • Chemistry
DEF

A special type of metallochromic indicator which is itself a complexing agent, and which, whilst undergoing suitable irradiation, exhibits a change in its fluorescence emission when it reacts with metal ions or has them removed from its complex with them at or near the equivalence-point of a complexometric or precipitation titration.

French

Domaine(s)
  • Chimie
DEF

[...] type spécial d'indicateur métallochrome qui est lui-même un agent de complexation et qui, soumis à une irradiation convenable, présente des changements de fluorescence lorsqu'il réagit avec un ion métallique ou lorsqu'il le déplace d'un autre complexe aux alentours du point d'équivalence d'un titrage complexométrique ou d'un titrage par précipitation.

Spanish

Save record 4

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