ThuliumV1, Istex, Curation, bibRecord, 002069

Metal chelates of azo-pyridazine dyes

Identifieur interne : 002069 ( Istex/Curation ); précédent : 002068; suivant : 002070

Metal chelates of azo-pyridazine dyes

Auteurs : Atef A. T. Ramadan [Égypte] ; Magdy H. Seada [Égypte] ; Emil N. Rizkalla [Égypte]

Source :

Talanta [ 0039-9140 ] ; 1983.

RBID : ISTEX:934DB6F4FABA5BCBAEAC8141A43B712C9CD137E4

Descripteurs français

Wicri :
- topic : Cobalt.

English descriptors

KwdEn :
- Alkaline media, Bahp, Chelate, Chem, Cobalt, Copper chelates, Drastic conditions, Electronic absorption spectra, Free ligand, High affinities, Hydrazo group, Infrared spectrum, Ionic strength, Lanthanide ions, Ligand, Lower frequency, Metal chelates, Metal ions, Molar, Molar absorptivities, Molar ratio, Nitrogen atoms, Shams university, Solid copper, Stability constants, Titration curves, Ultraviolet spectrum.
Teeft :
- Alkaline media, Bahp, Chelate, Chem, Cobalt, Copper chelates, Drastic conditions, Electronic absorption spectra, Free ligand, High affinities, Hydrazo group, Infrared spectrum, Ionic strength, Lanthanide ions, Ligand, Lower frequency, Metal chelates, Metal ions, Molar, Molar absorptivities, Molar ratio, Nitrogen atoms, Shams university, Solid copper, Stability constants, Titration curves, Ultraviolet spectrum.

Abstract

Abstract: The synthesis, acid-base equilibria and metal-ion chelating tendencies of BAHP are reported. From potentiometric equilibrium measurements of hydrogen-ion concentration at 30° and ionic strength 0.10M (KNO3), in 75% dioxan-water medium, the values of the stability constants of some BAHP complexes with transition, non-transition and lanthanide ions have been evaluated. Probable structures of the metal chelates are inferred from the electronic absorption spectra and infrared examination of the solid copper complex. The use of BAHP as an analytical reagent for the spectrophotometric determination of copper, nickel and cobalt ions is discussed.

Url:

https://api.istex.fr/document/934DB6F4FABA5BCBAEAC8141A43B712C9CD137E4/fulltext/pdf

DOI: 10.1016/0039-9140(83)80057-5

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ISTEX:934DB6F4FABA5BCBAEAC8141A43B712C9CD137E4

Le document en format XML

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<term>Cobalt</term>
<term>Copper chelates</term>
<term>Drastic conditions</term>
<term>Electronic absorption spectra</term>
<term>Free ligand</term>
<term>High affinities</term>
<term>Hydrazo group</term>
<term>Infrared spectrum</term>
<term>Ionic strength</term>
<term>Lanthanide ions</term>
<term>Ligand</term>
<term>Lower frequency</term>
<term>Metal chelates</term>
<term>Metal ions</term>
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<term>Molar absorptivities</term>
<term>Molar ratio</term>
<term>Nitrogen atoms</term>
<term>Shams university</term>
<term>Solid copper</term>
<term>Stability constants</term>
<term>Titration curves</term>
<term>Ultraviolet spectrum</term>
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<term>Copper chelates</term>
<term>Drastic conditions</term>
<term>Electronic absorption spectra</term>
<term>Free ligand</term>
<term>High affinities</term>
<term>Hydrazo group</term>
<term>Infrared spectrum</term>
<term>Ionic strength</term>
<term>Lanthanide ions</term>
<term>Ligand</term>
<term>Lower frequency</term>
<term>Metal chelates</term>
<term>Metal ions</term>
<term>Molar</term>
<term>Molar absorptivities</term>
<term>Molar ratio</term>
<term>Nitrogen atoms</term>
<term>Shams university</term>
<term>Solid copper</term>
<term>Stability constants</term>
<term>Titration curves</term>
<term>Ultraviolet spectrum</term>
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<front><div type="abstract" xml:lang="en">Abstract: The synthesis, acid-base equilibria and metal-ion chelating tendencies of BAHP are reported. From potentiometric equilibrium measurements of hydrogen-ion concentration at 30° and ionic strength 0.10M (KNO3), in 75% dioxan-water medium, the values of the stability constants of some BAHP complexes with transition, non-transition and lanthanide ions have been evaluated. Probable structures of the metal chelates are inferred from the electronic absorption spectra and infrared examination of the solid copper complex. The use of BAHP as an analytical reagent for the spectrophotometric determination of copper, nickel and cobalt ions is discussed.</div>
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Metal chelates of azo-pyridazine dyes

Metal chelates of azo-pyridazine dyes

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri